Entries |
Document | Title | Date |
20080261107 | ROBUST METAL FILM ENCAPSULATION - The present invention relates to metal film encapsulation of an electrochemical device. The metal film encapsulation may provide contact tabs for the electrochemical device. The present invention may also include a selectively conductive bonding layer between a contact and a cell structure. The present invention may further include ways of providing heat and pressure resilience to the bonding layer and improving the robustness of the protection for the cell structure. | 10-23-2008 |
20090098449 | Microporous polyolefin membrane, and method of producing the same - The present invention provides a microporous polyolefin membrane of high permeability and novel structure, and also provides a method of producing the same, wherein its average pore size is gradually decreases from at least one membrane surface towards its center. The method of producing the microporous polyolefin membrane comprises the steps of extruding the solution, composed of 10 to 50 weight % of (A) a polyolefin having a weight-average molecular weight of 5×105 or more or (B) a composition containing this polyolefin and 50 to 90 weight % of a solvent, into a gel-like formed article and removing the solvent therefrom, wherein a treatment step with a hot solvent is incorporated. | 04-16-2009 |
20090123826 | METHOD OF MAKING A THIN LAYER ELECTROCHEMICAL CELL WITH SELF-FORMED SEPARATOR - A method of forming an electrochemical cell is disclosed. The method comprises contacting a negative pole layer and a positive pole layer one with the other or with an optional layer interposed therebetween. The pole layers and the optional layer therebetween are selected so as to self-form an interfacial separator layer between the pole layers upon such contacting. | 05-14-2009 |
20090148760 | BATTERY SEPARATOR STRUCTURES - A multilayer composite sheet for use in a lead-acid battery includes
| 06-11-2009 |
20090155678 | SEPARATOR FOR ELECTROCHEMICAL CELL AND METHOD FOR ITS MANUFACTURE - An electrode/separator assembly for use in an electrochemical cell includes a current collector; a porous composite electrode layer adhered to the current collector, said electrode layer comprising at least electroactive particles and a binder; and a porous composite separator layer comprising inorganic particles substantially uniformly distributed in a polymer matrix to form nanopores and having a pore volume fraction of at least 25%, wherein the separator layer is secured to the electrode layer by a solvent weld at the interface between the two layers, said weld comprising a mixture of the binder and the polymer. Methods of making and using the assembly are also described. | 06-18-2009 |
20090169986 | NON-AQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - In a non-aqueous secondary battery that includes a strip-shaped positive electrode, a strip-shaped negative electrode, a first insulating layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, the width of the positive electrode is smaller than the width of the negative electrode, both longitudinal end faces of the positive electrode are coated with a second insulating layer, and the first insulating layer and the second insulating layer are both porous. | 07-02-2009 |
20090176152 | MANGANESE DRY BATTERY - A manganese dry battery of the invention includes a positive electrode material mixture including manganese dioxide, a negative electrode zinc can with a lead content equal to or less than 0.03% by weight, and a separator comprising a paper with a paste material applied thereto. The separator contains 0.005 to 0.05 part by weight of bismuth in the form of BiCl | 07-09-2009 |
20090197158 | NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery includes a cathode that is placed opposite an anode via a separator, an open circuit voltage in the full charge state is within a range of 4.25 to 6.00 V per a pair of the cathode and the anode, the separator includes a base material layer which includes a polyolefin resin material and a surface layer which is provided at least on the surface at the side of the cathode of the base material layer and includes at least one selected from the group including polyvinylidene fluoride, polytetrafluoroethylene, and polypropylene, and at least one selected from the group including aramid, polyimide, and ceramics is present on the outermost surface of the surface layer. | 08-06-2009 |
20090202898 | Reactive polymer-carrying porous film and processing for producing the same - It is intended to provide a reactive polymer-supported porous film that is capable of achieving sufficient adhesion between the electrode and the separator; reduced in internal resistance; and excellent in high rate characteristics, the porous film being useful as a battery separator which, after production of the battery, is not melted or broken under a high temperature and functions as a separator having a small heat shrinkage ratio as well as to provide a process for producing batteries using the reactive polymer-supported porous film. | 08-13-2009 |
20090246612 | Electrochemical Device - An electrochemical device having an electrode matrix including a multilayer structure laminating positive and negative electrodes with a separator interposed therebetween; wherein at least one of the positive and negative electrodes has a resistance control layer at least at an edge part exposed when the separator thermally shrinks on a surface on the separator side; and wherein the resistance control layer has a resistance value as a total resistance value of the electrode matrix falling in such a range that an estimated internal short circuit current between the positive and negative electrodes is equivalent to 0.09 C to 1 C. | 10-01-2009 |
20090274954 | POROUS FILM AND LAMINATED POROUS FILM - There is provided a porous film, comprising a polymer having a thermal decomposition initiation temperature of 200° C. or more and a raw material monomer thereof, wherein a ratio of the raw material monomer is 0.05% by weight or more and 5% by weight or less based on the total weight of the polymer and the raw material monomer; and a laminated porous film, wherein the porous film and a porous film containing a thermoplastic resin are laminated. | 11-05-2009 |
20090274955 | MULTI-LAYER MICROPOROUS POLYOLEFIN MEMBRANE AND BATTERY SEPARATOR - A multi-layer, microporous polyolefin membrane having at least three layers, which comprises first microporous layers made of a polyethylene resin for constituting at least both surface layers, and at least one second microporous layer comprising a polyethylene resin and polypropylene and disposed between both surface layers, the heat of fusion (ΔH | 11-05-2009 |
20090297935 | IONICALLY CONDUCTIVE MEMBRANES FOR PROTECTION OF ACTIVE METAL ANODES AND BATTERY CELLS - Disclosed are ionically conductive membranes for protection of active metal anodes and methods for their fabrication. The membranes may be incorporated in active metal negative electrode (anode) structures and battery cells. In accordance with the invention, the membrane has the desired properties of high overall ionic conductivity and chemical stability towards the anode, the cathode and ambient conditions encountered in battery manufacturing. The membrane is capable of protecting an active metal anode from deleterious reaction with other battery components or ambient conditions while providing a high level of ionic conductivity to facilitate manufacture and/or enhance performance of a battery cell in which the membrane is incorporated. | 12-03-2009 |
20100003590 | ELECTROCHEMICAL DEVICE AND ITS MANUFACTURING METHOD - An electrochemical includes an electrode structure provided with a composite separator having a porous substrate with a plurality of pores and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of electrode active material particles and a binder polymer. The porous coating layer of the composite separator improves thermal stability of the porous substrate and plays a function of electrode active material layer of the electrochemical device. Accordingly, this electrochemical device has excellent stability and good economical efficiency since the electrode structure does not need coating of an electrode active material layer on a surface of a current collector. | 01-07-2010 |
20100015515 | LAMINATED POROUS FILM AND SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a laminated porous film formed by laminating a heat-resistant resin layer on a porous film made from a polyolefin-based resin containing an ethylene-α-olefin copolymer including a structural unit derived from ethylene and a structural unit derived from one or more kinds of monomers selected from α-olefins having 4 to 10 carbon atoms, wherein a shutdown temperature is 125° C. or lower and a thermal film breakage temperature is 155° C. or higher. | 01-21-2010 |
20100028768 | POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE USING THE SAME AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material includes: a complex oxide particle containing at least lithium and one or plural transition metals; and a coating layer provided in at least a part of the complex oxide particle, wherein the coating layer contains at least one element M which is different from the principal transition metal constituting the complex oxide particle and which is selected among elements belonging to the Groups 2 to 13, and at least one element X selected among phosphorus (P), silicon (Si) and germanium (Ge), and the element M and the element X show different distribution from each other in the coating layer. | 02-04-2010 |
20100055554 | POSITIVE ELECTRODE ACTIVE MATERIAL POWDER AND POSITIVE ELECTRODE ACTIVE MATERIAL - The present invention provides a powder for a positive electrode active material containing particles containing two or more elements selected from transition metal elements and in the cumulative particle size distribution on the basis of volume of the particles composing the powder, the particle diameter (D50) observed from the finer particle side at 50% accumulation is in the range of 0.1 μm or larger and 10 μm or smaller, and 95% by volume or more of the particles composing the powder exit in the range of 0.3 time or more and 3 times or less as large as D50. | 03-04-2010 |
20100075215 | THIN BATTERY AND A METHOD OF MANUFACTURING A THIN BATTERY - The thin battery of the invention comprises an anode material, a cathode material, two or more separator paper layers there between, and electrolyte. One of the outer separator paper layers has an anode material applied thereon, another separator paper layer being an outer layer on the opposite side having a cathode material applied thereon. The method of the invention for manufacturing such a thin battery is mainly characterized by the steps of wetting a separator paper with an electrolyte solution, applying an anode material on a first separator paper and applying a cathode material on a second separator paper. The separator papers are then combined by pressing them together so that the anode and cathode materials are outmost, respectively in order to form a layered structure. The combined layers are then cut in desired sizes. | 03-25-2010 |
20100099022 | SEPARATOR - A separator having a laminated porous film in which a heat-resistant layer containing a heat-resistant resin and a shut-down layer containing a thermoplastic resin are laminated, in which the heat-resistant layer has a thickness of not less than 1 μm and not more than 10 μm, and the heat-resistant layer further contains a filler containing substantially spherical particles. | 04-22-2010 |
20100112432 | SEPARATOR - Provided is a separator made of a laminated porous film in which a heat-resistant layer that comprises a heat-resistant resin and a shut-down layer that comprises a thermoplastic resin are laminated, wherein the heat-resistant layer further comprises two or more fillers, and the value of D | 05-06-2010 |
20100119930 | Alkaline cell with improved separator - An alkaline cell with improved separator. The separator is formed of two sheets. The two sheets are wound into a tube shape and the bottom edge of the wound separator is folded and heat sealed. The facing surfaces of the two sheets forming the separator body are not glued or bonded together. The two separator sheets may overlap laterally so that a portion of each sheet forms a different portion of the separator outside surface. Alternatively, the separator may be formed of two sheets wherein the first sheet forms an outer layer which completely covers the second sheet. One sheet is preferably composed of a blend of polyvinylalcohol fibers and rayon fibers and the other sheet composed of polyvinylalcohol fibers and wood pulp fibers. | 05-13-2010 |
20100124700 | ELECTRODE AND SEPARATOR MATERIAL FOR LITHIUM-ION CELLS AND METHODS OF PREPARING THE SAME - A negative electrode for an electrochemical device comprises an active layer which forms a porous outer surface, the outer surface of the active layer being at least partially coated with nanoparticles, and/or an active layer which is at least partially covered by a porous functional layer at least an outer surface whereof is at least partially covered with nanoparticles. Also disclosed is a separator composite material for separating electrodes in an electrochemical device, comprising an essentially self-supporting support layer and a porous functional layer on at least one side of the support layer. An outer surface of the support layer is at least partially coated with nanoparticles on at least one side thereof. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way. | 05-20-2010 |
20100124701 | LITHIUM-ION SECONDARY BATTERY SEPARATOR AND LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery separator having a porous structure formed by laminating a second polymer layer, a first polymer layer, and a second polymer layer in sequence. The second polymer layer has a melting point higher than that of the first polymer layer. The second polymer layer has a higher molecular part formed on a side in contact with the first polymer layer and a lower molecular part formed on a side farther from the first polymer layer than is the higher molecular part. The higher and lower molecular parts have a weight-average molecular weight ratio (higher molecular part/lower molecular part) of 4 to 19 therebetween. | 05-20-2010 |
20100136411 | Prismatic Cell With Outer Electrode Layers Coated On A Single Side - Embodiments of the present invention provide an electrochemical cell including a stack of electrode layers and separator layers. The electrode layers include anode layers and cathode layers disposed in an alternating manner and separated by the separator layers. The two outer electrode layers of the stack are of the same type and are coated with an active material on an inward-facing surface only. The electrochemical cell may include two or more insulating layers disposed at the two ends of the electrode stack, and a pouch enclosing the electrode stack and the insulating layers. | 06-03-2010 |
20100136412 | METHOD FOR PRODUCING LITHIUM-CONTAINING COMPOSITE OXIDE AND NON-AQUEOUS SECONDARY BATTERY - A method for producing a lithium-containing composite oxide represented by General Formula (1): | 06-03-2010 |
20100183908 | CROSSLINKING POLYMER-SUPPORTED POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF - The present invention relates to a crosslinking polymer-supported porous film for battery separator, including: a porous film; and a crosslinking polymer supported on the porous film, the crosslinking polymer having a plurality of cation-polymerizable functional groups in the molecule thereof and having oxyalkylene groups represented by general formula (I): | 07-22-2010 |
20100209757 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a nonaqueous electrolyte, and a separator. The positive electrode includes a lithium composite oxide having an average composition represented by the following formula (1) | 08-19-2010 |
20100233523 | HEAT RESISTING ULTRAFINE FIBROUS SEPARATOR AND SECONDARY BATTERY USING THE SAME - A heat-resisting ultrafine fibrous separator of the present invention is prepared by an electrospinning process, formed of ultrafine fibers of heat-resisting polymer resin having a melting point more than 1800 C or not having the melting point, or ultrafine fibers of polymer resin capable of swelling in an electrolyte, together with the ultrafine fibers of heat-resisting polymer resin. Also, polyolefine fine particles providing a shutdown function are dispersed in the heat-resisting resin or the polymer resin capable of swelling in the electrolyte. The heat-resisting ultrafine fibrous separator of the present invention has the shutdown function, low thermal contraction, thermal endurance, excellent ionic conductivity and excellent adhesive property with an electrode, so a battery having excellent cycling characteristics, and having high-energy density and high capacity can be prepared. | 09-16-2010 |
20100239900 | BATTERY SEPARATOR AND NONAQUEOUS LITHIUM ION SECONDARY BATTERY HAVING THE SAME - The invention provides a battery separator comprising a porous resin film and a crosslinked polymer supported thereon and having iminodiacetic acid groups in side chains of the polymer chains. The iminodiacetic acid group is preferably represented by the formula | 09-23-2010 |
20100248001 | MIXED METAL OXIDE AND SODIUM SECONDARY BATTERY - Disclosed is a mixed metal oxide which is extremely useful as a positive electrode active material for secondary batteries, while being reduced in the amount of a scarce metal used therein. Also disclosed are a positive electrode for sodium secondary batteries, and a sodium secondary battery. Specifically disclosed is a mixed metal oxide having an α-NaFeO | 09-30-2010 |
20100248002 | Microporous Multilayer Membrane, System And Process For Producing Such Membrane, And The Use Of Such Membrane - The invention relates to a multilayer microporous membrane comprising polyethylene and polypropylene and having an improved balance of properties including improved thickness variation in at least one planar direction. The invention also relates to a system and method for producing such a membrane, the use of such a membrane as a battery separator film, and batteries containing such a membrane. | 09-30-2010 |
20100261047 | ELECTROCHEMICAL DEVICE HAVING DIFFERENT KINDS OF SEPARATORS - An electrochemical device includes a plurality of unit cells, each having a first separator and a cathode and an anode positioned at both sides of the first separator, and a continuous single second separator interposed between adjacent unit cells in correspondence with each other in a laminated pattern and arranged to surround each unit cell. The first separator includes a heat-resisting porous substrate having a melt point of 200° C. or above and a first porous coating layer formed on at least one surface of the heat-resisting porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer. The second separator includes a polyolefin porous substrate and a second porous coating layer formed on at least one surface of the polyolefin porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer. | 10-14-2010 |
20100285348 | MULTILAYER POROUS MEMBRANE AND PRODUCTION METHOD THEREOF - The present invention provides a multilayer porous membrane having both high safety and practicality, especially as a separator for a non-aqueous electrolyte battery and comprising a porous layer containing an inorganic filler and a resin binder on at least one surface of a polyolefin resin porous membrane, wherein the porous layer simultaneously satisfies the following (A) to (C):
| 11-11-2010 |
20100304205 | HEAT RESISTING SEPARATOR HAVING ULTRAFINE FIBROUS LAYER AND SECONDARY BATTERY HAVING THE SAME - A polyolefin separator having an heat-resistant ultrafine fibrous layer and a secondary battery using the same, in which the separator has a shutdown function, low thermal contraction characteristics, thermal endurance, excellent ionic conductivity, excellent cycling characteristics at the time of battery construction, and excellent adhesion with an electrode. The present N invention adopts a very simple and easy process to form an ultrafine fibrous layer through an electrospinning process, and at the same time, to remove solvent and to form pores. Accordingly, the separator of the present invention is useful particularly for electrochemical devices used in a hybrid electric automobile, an electric automobile, and a fuel cell automobile, requiring high thermal endurance and thermal stability. | 12-02-2010 |
20100310921 | SEPARATOR FOR ALKALINE BATTERY, METHOD FOR PRODUCING THE SAME, AND BATTERY - Provided is a separator for alkaline batteries which can not only prevent batteries from internal short circuit by inhibiting the dendrite formation at anode, but also enables to have a low electrical resistance. The separator for alkaline batteries comprises a composite sheet in which a base layer comprising a wet-type nonwoven material formed from alkaline resistant fibers is covered with a nanofiber layer comprising a modified polyvinyl alcohol fiber which has a fiber diameter of 10 to 1000 nm and a liquid absorption amount by fibers of 4.0 to 40.0 g/g after immersion in a 35% aqueous solution of KOH. | 12-09-2010 |
20100323231 | POSITIVE ELECTRODE ACTIVE MATERIAL, SODIUM SECONDARY BATTERY, AND PRODUCTION METHOD OF OLIVINE-TYPE PHOSPHATE - Disclosed are a positive electrode active material and a method for producing an olivine-type phosphate. The positive electrode active material comprises an olivine-type phosphate represented by the following formula (I), wherein the maximum peak in an X-ray diffraction pattern obtained using a CuKα ray is the peak of the (031) plane of the olivine-type phosphate and the half-value width of the peak is 1.5° or less: A | 12-23-2010 |
20100323232 | MIXED METAL OXIDE AND SODIUM SECONDARY BATTERY - The present invention provides a sodium secondary battery capable of reducing the amount of lithium used, and ensuring a larger discharge capacity maintenance rate when having repeated a charge and discharge, as compared with conventional techniques; and a mixed metal oxide usable as the positive electrode active material therefor. A mixed metal oxide of the present invention comprises Na and M | 12-23-2010 |
20100323233 | ELECTRIC SEPARATOR, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to electrical separators and to a process for making them. An electrical separator is a separator used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. The separator is preferably a thin porous insulating material possessing high ion permeability, good mechanical strength and long-term stability to the chemicals and solvents used in the system, for example in the electrolyte of the battery. In batteries, the separator should fully electrically insulate the cathode from the anode. Moreover, the separator has to be permanently elastic and to follow movements in the system, for example in the electrode pack in the course of charging and discharging. This object is achieved by an electrical separator according to the invention, comprising a sheetlike flexible substrate having a multiplicity of openings and having a coating on and in said substrate, said substrate being a polymeric nonwoven and said coating being a porous electrically insulting ceramic coating, said separator being characterized by a thickness of less than 80 μm. | 12-23-2010 |
20110003191 | SODIUM SECONDARY BATTERY - The present invention provides a sodium secondary battery having a superior cycling performance as compared with conventional techniques. A sodium secondary battery of the present invention comprises a positive electrode comprising a mixed metal oxide which comprises Na and M | 01-06-2011 |
20110003192 | MIXED METAL OXIDE AND SODIUM SECONDARY BATTERY - The present invention provides a sodium secondary battery capable of reducing the amount used of a scarce metal element such as lithium and cobalt and moreover, ensuring a larger discharge capacity after repeating charge/discharge as compared with conventional techniques, and a mixed metal oxide usable as the positive electrode active material therefor. The mixed metal oxide of the present invention comprises Na, Mn and M | 01-06-2011 |
20110008668 | POWDER FOR POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ACTIVE ELECTRODE ACTIVE MATERIAL, AND SODIUM SECONDARY BATTERY - The present invention provides a positive electrode active material that can suppress the necessity of performing sieving and is suitable for use in secondary batteries, particularly sodium secondary batteries. Also provided is a powder for a positive electrode active material as a raw material for the positive electrode active material. The powder for a positive electrode active material of the present invention comprises Mn-containing particles. In the cumulative particle size distribution on the volume basis of particles constituting the powder, D50, which is the particle diameter at a 50% cumulation measured from the smallest particle, is in the range of from 0.1 μm to 10 μm, and 90 vol % or more of the particles constituting the powder are in the range of from 0.3 times to 3 times D50. The powder for a positive electrode active material comprises Mn-containing particles, and 90 vol % or more of the particles constituting the powder are in the range of from 0.6 μm to 6 μm. The positive electrode active material is a powdery positive electrode active material obtained by calcining a mixture of the powder for positive electrode active material and a sodium compound. The positive electrode for sodium rechargeable batteries comprises the positive electrode active material. | 01-13-2011 |
20110020692 | SEPARATOR FOR METAL HALIDE BATTERY - It is an object of the present invention to provide a separator for a metal halide battery which can maintain a low bromine permeability for a long duration and can maintain battery performance for a long duration. The present invention provides a separator for a metal halide battery having a bromine diffusion coefficient after 240 hours of less than 4.2×10 | 01-27-2011 |
20110039145 | POROUS FILM FOR SEPARATOR, BATTERY SEPARATOR, BATTERY ELECTRODE, AND MANUFACTURING METHODS THEREFOR, AND LITHIUM SECONDARY BATTERY - The present invention provides a lithium secondary battery using a separator including a porous film formed by binding inorganic oxide particles together with a binder. The inorganic oxide particles are treated so that an amount of alkali metal elements eluted therefrom when they are immersed in ion exchange water is reduced to 1000 ppm or less. As a result, it is possible to provide a lithium secondary battery with a high degree of reliability, whose characteristics deteriorate less when it is used or stored for an extended period. | 02-17-2011 |
20110045338 | SEPARATOR HAVING POROUS COATING LAYER AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME - A separator includes a porous substrate having a plurality of pores; and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a plurality of inorganic particles and a binder polymer, wherein the binder polymer includes a first polyvinylidene fluoride-based copolymer having solubility of 25 weight % or more with respect to acetone at 350 C; a second polyvinylidene fluoride-based copolymer having solubility of 10 weight % or less with respect to acetone at 350 C; and a polymer having a cyano group. This separator decelerates deterioration of life span of an electrochemical device, and prevents disintercalation of inorganic particles in the porous coating layer, thereby improving safety of the electrochemical device. | 02-24-2011 |
20110052962 | POROUS FILM, MULTILAYER POROUS FILM COMPRISING THE SAME, AND SEPARATOR - Disclosed is a porous film containing a polyolefin resin and not less than 0.001% by mass but not more than 2% by mass of a fatty acid component having not less than 12 but not more than 24 carbon atoms, which is composed of one or more fatty acids selected from the group consisting of saturated fatty acids, unsaturated fatty acids and metal salts of saturated or unsaturated fatty acids. | 03-03-2011 |
20110064988 | LITHIUM SECONDARY BATTERY - A lithium secondary battery includes a cathode, an anode, a separator interposed between the cathode and the anode, and a non-aqueous electrolytic solution obtained by dissolving lithium salt to a non-aqueous solvent. The separator includes a porous substrate having pores; and a porous coating layer located on at least one surface of the porous substrate and having inorganic particles and a binder polymer, the inorganic particles being connected and fixed to each other by means of the binder polymer, the porous coating layer having pores therein formed by interstitial volumes among the inorganic particles. The non-aqueous solvent is a high-viscous non-aqueous solvent having a viscosity of 1.4 cP or above at 25° C. This lithium secondary battery gives improved safety and excellent charging/discharging characteristics since it has the high-viscous non-aqueous solvent and the separator with good wettability against the solvent. | 03-17-2011 |
20110076545 | STACK TYPE BATTERY AND BATTERY MODULE - A plurality of positive electrode plates ( | 03-31-2011 |
20110086257 | METHOD FOR PRODUCING LITHIUM COMPLEX METAL OXIDE - A method for producing a layered lithium mixed metal oxide according to the present invention comprises a step of calcining, in the presence of an inert flux composed of a chloride, a lithium mixed metal oxide raw material containing a transition metal element and a lithium element so that the molar ratio of the lithium element to the transition metal element may fall within a range of 1 or more and 2 or less. | 04-14-2011 |
20110091762 | ELECTRODE ASSEMBLY FOR SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME AND SECONDARY BATTERY WITH THE SAME - An electrode assembly for a secondary battery, a method of manufacturing the electrode assembly and a secondary battery having the electrode assembly. The electrode assembly includes a plurality of electrode members arranged in a stacked shape along a baseline extending in one direction and a separation unit separating two adjacent electrode members. The separation unit includes three or more separators having a same winding center. | 04-21-2011 |
20110111280 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery includes a negative electrode having a negative electrode mixture layer containing a negative electrode active material and a separator. The negative electrode active material contains a carbon material having an R value of Raman spectrum of 0.2 to 0.8 and having an interplanar spacing d | 05-12-2011 |
20110117414 | Secondary Battery - A secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed therebetween, a case in which the electrode assembly and an electrolyte are accommodated, and a core member provided at a center portion of the electrode assembly and impregnating an electrolyte to maintain an external shape of the electrode assembly. | 05-19-2011 |
20110117415 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a nonaqueous electrolyte secondary battery. The nonaqueous electrolyte secondary battery comprises a positive electrode containing a positive electrode active material capable of being doped and dedoped with alkali metal ions and represented by formula A | 05-19-2011 |
20110123849 | Rechargeable lithium battery - Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate. | 05-26-2011 |
20110135987 | LITHIUM SECONDARY BATTERY - A lithium secondary battery including: a positive electrode including a positive electrode active material layer; a negative electrode including a negative electrode active material layer; an electrolyte; and an inorganic insulating separator coating layer coated on at least one of the active material layers. The sizes and shapes of the positive electrode active material layer and the negative electrode active material layer are substantially the same, in order to facilitate an arrangement of the positive and negative electrodes. | 06-09-2011 |
20110135988 | BATTERY SEPARATOR AND BATTERY USING THE SAME - The present invention relates to a battery separator including: a porous substrate; and a layer of a crosslinked polymer supported on at least one surface of the porous substrate, in which the crosslinked polymer is obtained by reacting (a) a reactive polymer having, in the molecule thereof, a first reactive group containing active hydrogen and a second reactive group having cationic polymerizability with (b) a polycarbonate urethane prepolymer terminated by an isocyanate group. | 06-09-2011 |
20110135989 | BATTERY SEPARATOR AND BATTERY USING THE SAME - The present invention relates to a battery separator including: a porous substrate; and a layer of a crosslinked polymer supported on at least one surface of the porous substrate, in which the crosslinked polymer is obtained by reacting (a) a reactive polymer having, in the molecule thereof, a reactive group containing active hydrogen with (b) a polycarbonate urethane prepolymer terminated by an isocyanate group. | 06-09-2011 |
20110135990 | SODIUM SECONDARY BATTERY - Disclosed is a sodium secondary battery. The sodium secondary battery comprises a first electrode and a second electrode comprising a carbonaceous material. The carbonaceous material satisfies one or more requirements selected from the group consisting of requirements 1, 2, 3 and 4. Requirement 1: R value (=ID/IG) obtained by Raman spectroscopic measurement is 1.07 to 3. Requirement 2: A value and σ | 06-09-2011 |
20110143181 | SEPARATOR, METHOD OF MANUFACTURING SEPARATOR, AND LITHIUM SECONDARY BATTERY INCLUDING SEPARATOR - A lithium secondary battery includes a positive electrode plate, a negative electrode plate, and a separator disposed between the positive electrode plate and the negative electrode plate. The separator includes a first porous base material layer, a second porous base material layer and a ceramic layer disposed between the first base material layer and the second base material layer. Since the lithium secondary battery includes the separator having the interposed ceramic layer, the melting and contraction of the separator due to heat are inhibited, thus preventing a short circuit between the positive electrode plate and the negative electrode plate. | 06-16-2011 |
20110143182 | Battery Separator - A battery includes a separator with a trapping layer that traps dissolved metal ions. | 06-16-2011 |
20110143183 | SEPARATOR FOR BATTERY AND NONAQUEOUS ELECTROLYTE BATTERY USING SAME - A separator for batteries according to the present invention includes a multilayer porous film having a resin porous film containing a thermoplastic resin as a main component and a heat resistant porous layer containing heat resistant particles as a main component, and the heat resistant porous layer has a thickness of 1 to 15 μm, and the 180° peel strength between the resin porous film and the heat resistant porous layer is 0.6 N/cm or more. | 06-16-2011 |
20110159345 | ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME - Disclosed are an electrode active material and a method for producing an electrode active material. The method for producing an electrode active material comprises the following steps (i), (ii) and (iii). (i) An aqueous solution containing M is brought into contact with a precipitant, thereby obtaining a precipitate, wherein M represents at least two elements selected from the group consisting of metal elements other than alkali metal elements. (ii) The precipitate is mixed with a sodium compound, thereby obtaining a mixture. (iii) The mixture is calcined. | 06-30-2011 |
20110159346 | LAMINATED POROUS FILM FOR SEPARATOR - Disclosed is a laminated porous film for a separator of a battery that, while having excellent air permeation performance which contributes to electric performance, has a shutdown property which is one of properties important from the viewpoint of ensuring safety. The laminated porous film is characterized in that the laminated porous film comprises layer A formed of a porous layer composed mainly of a polypropylene resin and layer B formed of a porous layer composed mainly of a polyethylene resin, has a β-activity, and has an electric resistance of not more than 10Ω at 25° C. and an electric resistance of not less than 100Ω after heating at 135° C. for 5 seconds and/or an air permeability of not more than 1000 sec/100 ml at 25° C. and an air permeability of not less than 10000 sec/100 ml after heating at 135° C. for 5 seconds. | 06-30-2011 |
20110159347 | SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME - A separator | 06-30-2011 |
20110165449 | BATTERY SEPARATOR AND METHOD FOR PRODUCING THE SAME, AND LITHIUM ION SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A battery separator ( | 07-07-2011 |
20110171513 | SODIUM SECONDARY BATTERY - The present invention provides a sodium secondary battery. The sodium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolytic solution, the separator is composed of a porous laminate film in which a heat resistant porous layer and a porous film are stacked each other, and the heat resistant porous layer is disposed on the negative electrode side. | 07-14-2011 |
20110171514 | SEPARATOR FOR NONAQUEOUS SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS SECONDARY BATTERY - The present invention is to provide a separator that is excellent in heat resistance, shutdown function, flame retardancy and handling property. The separator for a nonaqueous secondary battery of the invention is a separator for a nonaqueous secondary battery that has a polyolefin microporous membrane at least one surface of which is laminated with a heat resistant porous layer containing a heat resistant resin, and is characterized by containing an inorganic filler containing a metallic hydroxide that undergoes dehydration reaction at a temperature of 200 to 400° C. | 07-14-2011 |
20110189529 | SODIUM SECONDARY BATTERY - The present invention provides a sodium secondary battery. The sodium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolytic solution, the separator is composed of a porous laminate film in which a heat resistant porous layer and a porous film are stacked each other, and the heat resistant porous layer is disposed on the positive electrode side. | 08-04-2011 |
20110189530 | NONAQUEOUS SECONDARY BATTERY - A nonaqueous secondary battery comprising a pair of electrodes consisting of a positive electrode and a negative electrode, and a separator interposed between the pair of electrodes, wherein the separator is a laminate formed by stacking in sequence a metal layer, a first resin layer and a second resin layer having a thermal shrinkage percentage smaller than a thermal shrinkage percentage of the first resin layer, and the metal layer is opposed to one of the pair of electrodes. | 08-04-2011 |
20110195294 | METHOD FOR MANUFACTURING SEPARATORS, SEPARATORS MANUFACTURED BY THE METHOD AND ELECTROCHEMICAL DEVICES INCLUDING THE SEPARATORS - A method for manufacturing separators includes (S | 08-11-2011 |
20110200863 | LITHIUM-ION BATTERIES WITH COATED SEPARATORS - A porous polymer sheet or membrane is provided with a thin coating of an electrically non-conductive ceramic composition and the coating conforms to all surfaces, including the pore surfaces, of the membrane. Such a coated membrane serves well, for example, as an intra-cell separator in a lithium ion battery. The coating increases the mechanical properties and thermal stability of the separator in battery operation and retains electrolyte. The coating may be formed by a two-step vapor-phase process in which atoms of one or more metals such as aluminum, calcium, magnesium, titanium, silicon and/or zirconium are deposited in a conformal layer on a workpiece surface. The metal atoms may then be reacted with ammonia, carbon dioxide, and or water to form their respective non-conductive nitrides, carbides, and/or oxides on the surface. The two-step process is repeated as necessary to obtain a ceramic material coating of desired thickness. | 08-18-2011 |
20110206971 | CERAMIC, FLEXIBLE MEMBRANE PROVIDING IMPROVED ADHESION TO THE SUPPORT FLEECE - The present invention relates to flexible ceramic membranes which, depending on embodiment, are useful as separators for batteries, especially lithium batteries, and also a process for their production. | 08-25-2011 |
20110206972 | POWER STORAGE DEVICE SEPARATOR - Provided is a power storage device separator that is realized in the form of a heat-resistant, solvent-resistant, and dimensionally stable thin film. Also provided is a power storage device separator that can be realized in the form of a thin film which has excellent ion permeability and low resistance, which makes short-circuiting between electrodes and self-discharging difficult to occur, and in addition, which has excellent durability even after long periods of use under high temperature environments in the presence of organic solvents and ionic solutions. | 08-25-2011 |
20110212357 | BATTERY, VEHICLE, AND BATTERY-MOUNTING EQUIPMENT - This invention provides a battery comprising a separator, which has a shutdown function and, at the same time, can suppress a lowering in output of the battery, a vehicle with the battery mounted thereon, and a battery mounted equipment. A battery ( | 09-01-2011 |
20110217583 | SEPARATOR FOR VALVE REGULATED LEAD-ACID BATTERY, AND VALVE REGULATED LEAD-ACID BATTERY - It is an object of the present invention to provide a separator which can improve the valve regulated lead-acid battery both in the pressure lowering prevention effect and the electrolyte stratification prevention effect, and a valve regulated lead-acid battery using the same. | 09-08-2011 |
20110217584 | LAMINATED POROUS FILM, SEPARATOR FOR LITHIUM CELL, AND CELL - Provided is a laminated porous film having excellent shutdown characteristics and breakdown characteristics, good tearing strength and dimensional stability, and B activity. The laminated porous film comprises layer A, the main component of which is a polypropylene resin, and layer B which contains a polyethylene resin, and the ratio of the rearing strength (H | 09-08-2011 |
20110223464 | Separator Systems for Batteries - A battery cell is presented. The battery cell includes an anode, a cathode spaced from and operatively associated with the anode, an electrolyte operatively associated with the anode and the cathode. A layered separator includes a plurality of separator material layers disposed between the anode and cathode. The plurality of separator material layers includes a first layer and a second layer. The first layer is characterized by a first value of a physical property and the second layer is characterized by a second value of the physical property. | 09-15-2011 |
20110229750 | Polyolefin Fibers for Use as Battery Separators and Methods of Making and Using the Same - The present invention is directed to battery separators comprising layers of non-woven, melt-blown polyolefin fibers, and methods of making and using the same. | 09-22-2011 |
20110229751 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode plate, a negative electrode plate, a separator, and a nonaqueous electrolytic solution. The separator is constituted of a polyolefin microporous membrane constituted of two or more layers of stacked film containing polyethylene and polypropylene, one or both of the surface layers has a polypropylene mixture proportion exceeding 50% by mass and contains inorganic particles, and the nonaqueous electrolytic solution contains a dinitrile compound expressed by CN—(CH | 09-22-2011 |
20110229752 | BATTERY SEPARATOR AND SECONDARY BATTERY - A polyethylene resin surface is formed on a surface of a nonwoven fabric, which is made of polypropylene resin as a main component material and structured with bonded pieces of the polypropylene resin. The polyethylene resin surface is then subjected to a hydrophilization treatment, such as a radical reaction treatment or a sulfonation treatment. As a result, a secondary battery separator having a high mechanical strength along with a high hydrophilic nature, and a secondary battery using that secondary battery separator are provided. | 09-22-2011 |
20110236743 | ELECTROLYTE SEPARATOR AND METHOD OF MAKING THE ELECTROLYTE SEPARATOR - An electrolyte separator structure is provided. The electrolyte separator structure comprises a graded integral structure, wherein the structure comprises an ion-conducting first ceramic at a first end and an electrically insulating second ceramic at a second end, wherein the difference in the coefficient of thermal expansion of the ion-conducting first ceramic and the electrically insulating second ceramic is less than or equal to about 5 parts per million per degrees Centigrade, and wherein at least one of the first ceramic or the second ceramic comprises a strengthening agent. Method of making the ion-separator structure is provided. Electrochemical cells comprising the ion-separator structure and method of making the electrochemical cell using the ion-separator structure are also provided. | 09-29-2011 |
20110236744 | FIBROUS SEPARATION MEMBRANE FOR SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - Disclosed herein is a fibrous separation membrane for secondary batteries, comprising: a support layer containing cellulose fiber; and a first heat-resistant resin layer applied on one side of the support layer. | 09-29-2011 |
20110244305 | ELECTROCHEMICAL DEVICES FOR USE IN EXTREME CONDITIONS - An electrochemical device, such as a battery or power source, provides improved performance under stringent or extreme conditions. Such an electrochemical device for use in high temperature conditions may include at least a cathode, a lithium-based anode, a separator, and an ionic liquid electrolyte. This device also may include a current collector and housing that are electrochemically inert with respect to other components of the device. This electrochemical device may operate at temperatures ranging from 0 to 180, 200, 220, 240, and 260° C. | 10-06-2011 |
20110256442 | ELECTRODE MIXTURE, ELECTRODE, AND NONAQUEOUS ELECTROLYTE SECONDARY CELL - The present invention provides an electrode mixture, an electrode and a nonaqueous electrolyte secondary battery. The electrode mixture includes a lithium mixed metal oxide represented by formula (1): | 10-20-2011 |
20110262796 | LITHIUM SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY - A lithium secondary battery positive electrode according to the present invention is a lithium secondary battery positive electrode including a positive electrode material mixture layer containing a positive electrode active material and a conductivity enhancing agent on one or both sides of a current collector, wherein the positive electrode active material contains a lithium-containing composite oxide, the conductivity enhancing agent contains carbon fibers having an average fiber length of 10 nm or more and less than 1000 nm and an average fiber diameter of 1 nm or more and 100 nm or less, and the content of the carbon fibers in the positive electrode material mixture layer is 0.25 mass % or more and 1.5 mass % or less. | 10-27-2011 |
20110269010 | SEPARATOR, BATTERY USING THE SAME, METHOD FOR PRODUCING SEPARATOR, MICROPOROUS MEMBRANE, AND METHOD FOR PRODUCING A MICROPOROUS MEMBRANE - A separator includes a porous body, and a particle membrane that is formed on at least one principal surface of the porous body. The particle membrane is made of inorganic particles, and has a void formed therein by the inorganic particles. The particle membrane has a porosity that is non-uniform in the thickness direction thereof. | 11-03-2011 |
20110281150 | ORGANIC/INORGANIC COMPOSITE POROUS FILM AND ELECTROCHEMICAL DEVICE PREPARED THEREBY - Disclosed is an organic/inorganic composite porous film comprising: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. A method for manufacturing the same film and an electrochemical device including the same film are also disclosed. An electrochemical device comprising the organic/inorganic composite porous film shows improved safety and quality. | 11-17-2011 |
20110293988 | LEAD-OXIDE BATTERY PLATE WITH NONWOVEN GLASS MAT - Provided is a lead-oxide pasted battery plate comprising a lead alloy grid, lead oxide paste and a nonwoven glass fiber mat. The nonwoven glass mat is comprised of glass fibers having a diameter greater than 10 microns, a binder for the glass fibers, and a third component. The third component can comprise cellulosic fibers, glass micro-fibers, polymeric fibers, fillers or mixtures thereof. The presence of the third component restricts the penetration of the lead oxide paste through the thickness of the mat during the plate pasting operation, thereby keeping the process equipment free from the accumulation of lead oxide paste. The component can then dissolve in the battery acid solution, or work synergistically with the battery separator to deliver electrolyte to the lead oxide plate during the operation of the battery. | 12-01-2011 |
20110293989 | RESIN COMPOSITION, SHEET AND POROUS FILM - Disclosed is a resin composition containing a filler, a high molecular weight polyolefin, and a polyolefin wax having a weight average molecular weight of 700 to 6,000, wherein the resin composition satisfies the following formula (1), assuming that the weight of the ultrahigh molecular weight polyolefin contained in the resin composition is W1, the weight of the polyolefin wax having a weight average molecular weight of 700 to 6,000 is W2, and the intrinsic viscosity of the ultrahigh molecular weight polyolefin is [η]: | 12-01-2011 |
20110300430 | SEPARATOR FOR BATTERY, AND NON-AQUEOUS LITHIUM BATTERY - Disclosed is a separator for a battery, which comprises a porous film mainly composed of a polyolefin film, has heat resistance, and can improve battery properties. Specifically disclosed is a separator for a battery, which is characterized by having a layer mainly composed of a polyolefin resin, wherein at least one surface of the separator has an arithmetic average roughness (Ra) of 0.3 μm or more. | 12-08-2011 |
20110305937 | METHOD FOR MANUFACTURING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY USING SAME - A method for preparing a positive active material for a rechargeable lithium battery includes: a) providing a furnace and a crucible that is included in the furnace; b) putting a mixture of a composite metal precursor and a lithium compound into the crucible; and c) preparing a positive active material for a rechargeable lithium battery by firing the mixture in the crucible, wherein during the process b), the mixture in the crucible is positioned so that a minimum distance from a predetermined position inside the mixture to an exterior of the mixture in the crucible is about 5 cm or less. A rechargeable lithium made by this method is disclosed. | 12-15-2011 |
20110305938 | Electrode layered product for cell and method for making the same - An electrode layered product for a cell includes a first electrode plate having a shape of a strip, a first separator having a shape of a strip, a second separator having a shape of a strip, a second electrode plate having a pectinate, tooth shape, and a third electrode plate having a pectinate, tooth shape. The first separator is stacked on one surface of the first plate. The second separator is stacked on the other surface of the first plate. The second plate is stacked on an opposite side of the first separator from the first plate. The second plate includes tooth sections and a joining section. The third plate is stacked on an opposite side of the second separator from the first plate. The third plate includes tooth sections and a joining section. The first and second separators and the first, second and third plates are bent in a zigzag manner. | 12-15-2011 |
20110305939 | LITHIUM COMPOSITE METAL OXIDE AND POSITIVE ELECTRODE ACTIVE MATERIAL - Disclosed is a lithium mixed metal oxide which is useful for a positive electrode active material that is capable of providing a nonaqueous electrolyte secondary battery having more excellent cycle characteristics, in particular, more excellent cycle characteristics during high-temperature operation at 60 DEG C. or the like. Specifically disclosed is a lithium mixed metal oxide represented by the following formula (A). Li | 12-15-2011 |
20110305940 | METHOD FOR PRODUCING POROUS LAMINATE AND POROUS LAMINATE - A process for producing a porous laminate having many micropores interconnected in the thickness direction, which comprises: a step in which a laminate is produced which comprises at least three layers comprising an interlayer made of a thermoplastic resin having a hard segment and a soft segment and two nonporous outer layers made of a filler-containing resin and located as outer layers respectively on both sides of the interlayer; a step in which the laminate obtained is impregnated with a supercritical or subcritical fluid and this state is relieved to vaporize the fluid and thereby make the interlayer porous; and a step in which the two nonporous outer layers located respectively on both sides are made porous by stretching. | 12-15-2011 |
20110311855 | Methods and systems for making separators and devices arising therefrom - The invention provides solutions to the problems and needs stated above by providing battery separators that are inexpensive and easy to produce, provide superior performance over traditional separators, and provide robust safety. Towards those ends, the invention provides, in one aspect, the invention provides for a battery electrode comprising: an electrode having a surface, the electrode comprising: a plurality of active material particles; and, a plurality of electrically conductive particles, wherein the active material particles are capable of reversibly storing ions; a separator layer upon the electrode surface, the separator layer having top and bottom surfaces, the bottom surface facing each electrode surface, the separator layer comprising: a plurality of organic polymer particles, each particle having a gross cross sectional dimension between 0.1 μm and 250 μm and comprising a plurality of organic polymer chains, wherein at least some of the organic polymer chains are covalently cross-linked to each other; and, a polymeric binder, wherein the plurality of organic polymer particles are embedded in the polymeric binder. | 12-22-2011 |
20110318629 | SEPARATOR FOR LEAD ACID BATTERY - Separators for lead-acid batteries, and lead-acid batteries including the same are provided. The separator includes a first layer made of a rubber material and a second layer made of a polymer material. | 12-29-2011 |
20110318630 | SEPARATOR FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY - The invention intends to provide a separator for lithium ion secondary battery wherein the separator with porous film used for lithium ion secondary battery include binder, which is capable to contribute for improving film smoothness property of the separator and long term cycle property. | 12-29-2011 |
20110318631 | ELECTROCHEMICAL DEVICE - The electrochemical device of the present invention comprises a positive electrode ( | 12-29-2011 |
20120003524 | METAL OXIDE ULTRAFINE FIBER-BASED COMPOSITE SEPARATOR WITH HEAT RESISTANCE AND SECONDARY BATTERY USING SAME - An ultrafine fiber-based composite separator comprising a fibrous porous body which comprises ultrafine metal oxide/polymer composite fibers, or ultrafine metal oxide fibers and a polymer resin coating layer formed on the surface thereof, the ultrafine fibers being continuously randomly arranged and layered, and obtained by electrospinning a metal oxide precursor sol-gel solution or a mixture of a metal oxide precursor sol-gel solution and a polymer resin solution, wherein the surface of the metal oxide/polymer composite fibers has a uniform mixing composition of the metal oxide and the polymer resin, in which the separator has a heat shrinkage rate at 150˜250° C. of 10% or less and does not break down due to melting at a temperature of 200° C. or lower, has low heat shrinkage rate, and superior heat resistance and ionic conductivity, being capable of providing improved cycle and power properties when used in manufacturing a battery. | 01-05-2012 |
20120003525 | SEPARATOR FOR AN ELECTRICITY STORAGE DEVICE AND METHOD OF MANUFACTURING SAME - The present invention provides a separator for an electricity storage device that is formed by superimposing two or more fiber layers, wherein at least one or more of the fiber layers is a synthetic fiber layer that contains synthetic fibers and a synthetic resin binding agent, and also provides a method of manufacturing the same. Moreover, the present invention provides a separator for an electricity storage device that contains thermoplastic synthetic fibers A, heat-resistant synthetic fibers B, natural fibers C, and a synthetic resin-based binding agent, and also provides a method of manufacturing the same. | 01-05-2012 |
20120009459 | PROCESS FOR PRODUCING LITHIUM COMPOSITE METAL OXIDE HAVING LAYERED STRUCTURE - A method of producing a layered structure lithium mixed metal oxide, including a step of calcining a lithium mixed metal oxide raw material containing a transition metal element and a lithium element in a molar ratio of the lithium element to the transition metal element of 1 or more and 2 or less, in the presence of an inactive flux containing one or more compounds selected from the group consisting of a carbonate of M, a sulfate of M, a nitrate of M, a phosphate of M, a hydroxide of M, a molybdate of M, and a tungstate of M, wherein M represents one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. | 01-12-2012 |
20120015228 | SEPARATOR INCLUDING POROUS COATING LAYER, METHOD FOR MANUFACTURING THE SEPARATOR AND ELECTROCHEMICAL DEVICE INCLUDING THE SEPARATOR - A separator includes a non-woven fabric substrate having pores, fine thermoplastic powder located inside the pores of the non-woven fabric substrate, and a porous coating layer disposed on at least one surface of the non-woven fabric substrate. The fine thermoplastic powder has an average diameter smaller than that of the pores and a melting point lower than the melting or decomposition point of the non-woven fabric substrate. The porous coating layer includes a mixture of inorganic particles and a binder polymer whose melting point is higher than the melting or decomposition point of the fine thermoplastic powder. In the porous coating layer, the inorganic particles are fixedly connected to each other by the binder polymer and the pores are formed by interstitial volumes between the inorganic particles. Previous filling of the large pores of the non-woven fabric substrate with the fine thermoplastic powder makes the porous coating layer uniform. | 01-19-2012 |
20120015229 | LAMINATED SEPARATOR, POLYOLEFIN MICROPOROUS MEMBRANE, AND SEPARATOR FOR ELECTRICITY STORAGE DEVICE - Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less. | 01-19-2012 |
20120015230 | MIXED METAL OXIDE, ELECTRODE, AND SODIUM SECONDARY BATTERY - Disclosed is a mixed metal oxide comprising Na, M | 01-19-2012 |
20120015231 | LITHIUM COMPOSITE METAL OXIDE AND POSITIVE ELECTRODE ACTIVE MATERIAL - A lithium mixed metal oxide, shown by the following formula (A): Lix(Mn1-y-z-dNiyFezMd)O2 (A) wherein M is one or more elements selected from the group consisting of Al, Mg, Ti, Ca, Cu, Zn, Co, Cr, Mo, Si, Sn, Nb and V; x is 0.9 or more and 1.3 or less; y is 0.3 or more and 0.7 or less; z is more than 0 and 0.1 or less, and d is more than 0 and 0.1 or less. A positive electrode active material, including the lithium mixed metal oxide. A positive electrode, including the positive electrode active material. A nonaqueous electrolyte secondary battery, including the positive electrode. | 01-19-2012 |
20120021273 | SODIUM ION BATTERY - Disclosed is a sodium ion battery comprising a positive electrode, a negative electrode, and a sodium ion nonaqueous electrolyte, wherein the negative electrode comprises a negative electrode active material and a negative electrode current collector made of aluminum or aluminum alloy. Also disclosed is use of the negative electrode current collector made of aluminum or aluminum alloy as a negative electrode current collector of a sodium ion secondary battery. | 01-26-2012 |
20120028101 | MICROPOROUS MEMBRANES AND METHODS FOR PRODUCING AND USING SUCH MEMBRANES - A microporous membrane comprising layers, wherein at least one layer comprises a first polymer having a Tm in the range of 115.0° C. to 130.0° C. and an Mw of from 5.0×10 | 02-02-2012 |
20120034508 | Battery Separator - A battery includes a separator with a trapping layer that traps dissolved metal ions. | 02-09-2012 |
20120082883 | ELECTRODE MIX, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - An electrode mixture comprising a lithium nickel manganese composite metal oxide having an average particle diameter of 1 μm or less, an electrically conductive material and an overcharge inhibition material. The electrode mixture in which the overcharge inhibition material is an aromatic compound. The electrode mixture in which the overcharge inhibition material is one or more members selected from the group consisting of an aramid, a polyether, a polysulfone and a polyethersulfone. An electrode comprising the electrode mixture. A nonaqueous electrolyte secondary battery comprising a positive electrode, a negative electrode capable of being doped and dedoped with lithium ions, a separator and a nonaqueous electrolytic solution, wherein the positive electrode is the electrode described above. | 04-05-2012 |
20120088144 | SEPARATOR HAVING POROUS COATING LAYER AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME - A separator includes a porous substrate having a plurality of pores, and a porous coating layer formed on at least one surface of the porous substrate and made of a mixture of a plurality of filler particles and a binder polymer. The filler particles include electrode active material particles that are electrochemically oxidized and reduced. The binder polymer includes a copolymer having (a) a first monomer unit with a contact angle to water of 0 to 49° and (b) a second monomer unit with a contact angle to water of 50 to 130°. This separator is useful for an electrochemical device, particularly a lithium secondary battery. This separator ensures improved thermal stability and increased capacity of the electrochemical device. Also, inorganic particles in the porous coating layer formed on the porous substrate are not disintercalated due to excellent peeling resistance of the porous coating layer while the electrochemical is assembled. | 04-12-2012 |
20120088145 | POWDER AND LITHIUM NICKEL MIXED METAL OXIDE - Disclosed is a powder comprising a lithium-containing compound and a nickel-containing mixed metal compound, and satisfying the following requirements of (1) and (2) when the powder is analyzed by plasma emission spectrometry of particles:
| 04-12-2012 |
20120100411 | CELL SEPARATOR MANUFACTURING METHOD - The present invention provides a method of manufacturing a cell separator in which a protective layer mainly composed of at least one type of granular ceramic is formed on a surface of a porous sheet base material. The method includes preparation of a water-based paste obtained by mixing a solid material containing the granular ceramic and a binder with an aqueous solvent to which at least one type of alcohol has been added, and formation of a protective layer in a state in which the alcohol has been eliminated by coating the prepared water-based paste onto a surface of the porous sheet base material, and further includes formation of the protective layer so that the solids content in the protective layer is higher than the solids content in the water-based paste by an amount of elimination of the alcohol, and is at least 55% by mass. | 04-26-2012 |
20120115008 | POLYOLEFIN MICROPOROUS MEMBRANE, SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY, NON-AQUEOUS SECONDARY BATTERY AND METHOD OF PRODUCING POLYOLEFIN MICROPOROUS MEMBRANE - A polyolefin microporous membrane, the membrane having, when measured by DSC, a degree of crystallinity of from 65 to 85%, a lamellar crystal/crystal ratio of from 30 to 85%, a crystal length of from 5 nm to 50 nm and an amorphous length of from 3 nm to 30 nm, and a polyolefin microporous membrane, the membrane having, when measured by X-ray diffractometry, crystal size of from 12.5 nm to 13.5 nm and a degree of crystallinity of from 64 to 68%. | 05-10-2012 |
20120129032 | THERMALLY BOUND NON-WOVEN MATERIAL - The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C. | 05-24-2012 |
20120129033 | POWDERY MATERIAL AND POSITIVE ELECTRODE MIXTURE - In accordance with the present invention, a powdery material and a positive electrode mixture for providing a nonaqueous electrolyte secondary battery capable of exhibiting a higher output under high current rate conditions are provided. The powdery material according to the present invention comprises a positive electrode active material powder having an average particle diameter of from 0.05 μm to 1 μm and two or more types of graphite powder wherein the average particle diameters of the two or more types of the graphite powder are different from each other and each graphite powder has an average particle diameter of from 0.01 μm to 20 μm. The positive electrode mixture according to the present invention comprises the powdery material, a binder, and a solvent. | 05-24-2012 |
20120129034 | POROUS FILM, BATTERY SEPARATOR, AND BATTERY - A porous film which is produced using a resin composition containing an ultra-high-molecular-weight polyolefin and a polyolefin wax having a weight average molecular weight of 3000 or less, in which the number of branches per 1000 carbon atoms that constitute the main chain of the polyolefin wax is 15 or less; a porous film which is produced using a resin composition containing an ultra-high-molecular-weight polyolefin and a polyolefin wax having a weight average molecular weight of 3000 or less, and which does not substantially contain a component that melts at a temperature of 60° C. or lower; a laminated porous film which comprises one of the porous films and a heat-resistance porous layer laminated on at least one surface of the porous film; and a separator for batteries, which comprises the porous film or the laminated porous film. | 05-24-2012 |
20120135289 | POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION BATTERY - A polyolefin microporous membrane that may serve as a separator for a lithium ion battery is a single-layer or laminated structure and includes a film that forms a surface layer and contains organosilicone particles. | 05-31-2012 |
20120135290 | OLIVINE-BASED POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY USING SAME - Disclosed is an olivine-based positive active material for a rechargeable lithium battery and a rechargeable lithium battery using the same, wherein the olivine-based positive active material for a rechargeable lithium battery is represented the following Formula 1. | 05-31-2012 |
20120141858 | MULTILAYER BATTERY SEPARATOR AND METHOD FOR MANUFACTURING THE SAME - A multilayer battery separator is provided. The multilayer battery separator includes a porous polyethylene (PE) film, and a porous thermal resistant film selected from a group consisting of: a weight ratio of polyvinylidene fluoride (PVDF) and cellulose of 90/10-40/60; a weight ratio of polyvinylidene fluoride and polyethylene glycol (PEG) of 99/1-85/15; and polyimide (PI), and combinations thereof. A method for manufacturing the multilayer battery separator is also provided. | 06-07-2012 |
20120141859 | MULTILAYER POROUS FILM - A multilayer porous film, comprising a porous layer including inorganic particles and a resin binder on at least one surface of a porous film containing a polyolefin resin as a main component, wherein the inorganic particles contain an aluminum silicate compound as a main component. | 06-07-2012 |
20120148896 | MULTI-LAYER ARTICLE OF POLYIMIDE NANOWEB WITH AMIDIZED SURFACE - The present invention is directed to the preparation and use of aromatic polyimide nanowebs with amide-modified surfaces. Uses include as a filtration medium, and as a separator in batteries, particularly lithium-ion batteries. The invention is also directed to a method comprising the aromatic polyimide nanoweb with amide-modified surface. The invention is further directed to a multi-layer article comprising the aromatic polyimide nanoweb with amide-modified surface, and to an electrochemical cell comprising the multi-layer article. | 06-14-2012 |
20120148897 | ELECTROCHEMICAL CELL COMPRISING A MULTI-LAYER ARTICLE OF POLYIMIDE NANOWEB WITH AMIDIZED SURFACE - The present invention is directed to the preparation and use of aromatic polyimide nanowebs with amide-modified surfaces. Uses include as a filtration medium, and as a separator in batteries, particularly lithium-ion batteries. The invention is also directed to a method comprising the aromatic polyimide nanoweb with amide-modified surface. The invention is further directed to a multi-layer article comprising the aromatic polyimide nanoweb with amide-modified surface, and to an electrochemical cell comprising the multi-layer article. | 06-14-2012 |
20120148898 | BATTERY - An exemplary battery is provided in the present invention. The battery includes a current collector, a positive-electrode structure, a separation structure, a negative-electrode structure and a housing. The positive-electrode structure, the separation structure, the negative-electrode structure are encircled in sequence inside of the housing. At least one of the negative-electrode structure and the positive-electrode structure comprises chlorophyll. The battery of the present invention could store hydrogen by the chlorophyll of the positive-electrode structure and/or the negative-electrode structure to generate electricity. | 06-14-2012 |
20120148899 | ELECTROCHEMICAL CELL HAVING A SEPARATOR - Electrochemical cell comprising a positive and a negative elecrode and a layer of an inorganic substance arranged between the electrodes, characterized in that the layer is coated with a polyetherimide on one or both sides. | 06-14-2012 |
20120156545 | High energy storage capacitor by embedding tunneling nano-structures - In an All-Electron Battery (AEB), inclusions embedded in an active region between two electrodes of a capacitor provide enhanced energy storage. Electrons can tunnel to/from and/or between the inclusions, thereby increasing the charge storage density relative to a conventional capacitor. One or more barrier layers is present in an AEB to block DC current flow through the device. The AEB effect can be enhanced by using multi-layer active regions having inclusion layers with the inclusions separated by spacer layers that don't have the inclusions. The use of cylindrical geometry or wrap around electrodes and/or barrier layers in a planar geometry can enhance the basic AEB effect. Other physical effects that can be employed in connection with the AEB effect are excited state energy storage, and formation of a Bose-Einstein condensate (BEC). | 06-21-2012 |
20120164511 | LITHIUM BATTERY AND ELECTRODE PLATE STRUCTURE - A lithium battery is provided. The lithium battery comprises an positive electrode plate having a first surface, a negative electrode plate having a second surface, a first thermal insulating layer and a separator. The first surface is opposite to the second surface. The thermal insulating layer is disposed on one of the first surface and the second surface. The thermal insulating layer is comprised of an inorganic material, a thermal activation material and a binder. The separator is disposed between the positive electrode plate and the negative electrode plate. | 06-28-2012 |
20120164512 | LITHIUM BATTERY AND ELECTRODE PLATE STRUCTURE - A lithium battery is provided. The lithium battery comprises a first plate, a second plate and a separator. The first plate is composed of a plurality of electrode material layers stacked on one another. At least one of the electrode material layers comprises a thermal activation material. The separator is disposed between the first plate and the second plate. | 06-28-2012 |
20120164513 | BATTERY SEPARATOR AND METHOD FOR MANUFACTURING THE SAME - The present discloser provides a battery separator, including: a porous hyper-branched polymer which undergoes a closed-pore mechanism at a field effect condition, wherein the field effect condition includes at least one of a temperature being above 150° C., a voltage being 20V, or a current being 6 A; and a porous structure material. The invention also provides a method for manufacturing the battery separator and a secondary battery having the battery separator. | 06-28-2012 |
20120164514 | SEPARATOR FOR NON-AQUEOUS BATTERIES, NON-AQUEOUS BATTERY USING SAME, AND PRODUCTION METHOD FOR SEPARATOR FOR NON-AQUEOUS BATTERIES - Provided is a separator for non-aqueous batteries not only having shutdown property but also achieving both higher output and short-circuit resistance. The separator comprising a laminate comprising: a low melting-point polymer fiber layer (A) having a melting point of 100 to 200° C., the low melting-point polymer fiber layer (A) comprising nanofibers having a fiber diameter of 1000 nm or smaller and formed from the low melting-point polymer; and a heat-resistant polymer fiber layer (B) positioned on the low melting-point polymer fiber layer (A) and comprising a high melting-point polymer having a melting point over 200° C. or a heat infusible polymer, the heat-resistant polymer fiber layer (B) comprising a mixture of nanofibers having a fiber diameter of 1000 nm or smaller and non-nanofibers having a fiber diameter over 1000 nm and both formed from heat-resistant polymer. | 06-28-2012 |
20120177974 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery according to the present invention is a non-aqueous electrolyte battery including a positive electrode, a negative electrode, a separator and a non-aqueous electrolyte, wherein aluminum silicate or a derivative thereof is contained in a location that can come into contact with the non-aqueous electrolyte in the battery. In the non-aqueous electrolyte battery, it is preferable that at least one of the separator, the positive electrode, the negative electrode and the non-aqueous electrolyte contains aluminum silicate or a derivative thereof. | 07-12-2012 |
20120177975 | STACKED BATTERY AND METHOD OF PRODUCING THE SAME - A stacked battery includes a square battery element in which a tabular positive electrode, a separator and a tabular negative electrode are laminated, wherein: one side of the battery element is a terminal connection section pulled-out surface, which is provided on both the positive and negative electrodes and where a plate-like positive-electrode terminal connection section and a plate-like negative-electrode terminal connection are both pulled out; projection surfaces, which are generated by vertically projecting the positive-electrode terminal connection section and the negative-electrode terminal connection section onto surfaces extending from the positive and negative electrodes, do not cross each other; a surface of the positive electrode and a surface of the negative electrode, which are facing each other, are different in area; each electrode is disposed so that an entire projection portion, which is generated by projecting the small-area electrode onto a surface of a large-area electrode that faces the small-area electrode, is positioned on the large-area electrode; on a separator, a bumping section is provided to limit movements of positive and negative electrodes as a positive-electrode end surface and a negative-electrode end surface hit the bumping section; and as for the bumping section, separators are joined by a crease or joining section of adjacent separators among separators disposed on electrode surfaces. | 07-12-2012 |
20120189895 | ELECTRODE STACK FOR A GALVANIC CELL - An electrode stack according to the invention comprises at least a cathode, an anode, and a separator with electrolyte. The cathode, the anode, and the separator are each plate-shaped, respectively. The surface area of the separator is at least as large, as the surface area of the cathode and/or of the anode. The plate-shaped elements of the electrode stack are at least partially connected with each other, by fixation means. | 07-26-2012 |
20120189896 | ELECTRODE SEPARATOR - The present invention provides a separator for use in an alkaline electrochemical cell comprising a QA polymer material, wherein the separator is substantially resistant to oxidation by silver oxide. | 07-26-2012 |
20120189897 | POROUS MEMBRANE FOR SECONDARY BATTERY AND SECONDARY BATTERY - Disclosed is a porous membrane for a secondary battery, which has further improved output characteristics and long-term cycle characteristics when compared with conventional porous membranes. The porous membrane for a secondary battery is used for a lithium ion secondary battery or the like. Specifically disclosed is a porous membrane for a secondary battery, which contains polymer particles A that have a number average particle diameter of 0.4 μm or more but less than 10 μm and a glass transition temperature of 65° C. or more and polymer particles B that have a number average particle diameter of 0.04 μm or more but less than 0.3 μm and a glass transition temperature of 15° C. or less. It is preferable that the polymer particles B have a crystallization degree of 40% or less and a main chain structure that is composed of a saturated structure. | 07-26-2012 |
20120189898 | POROUS MEMBRANE FOR A SECONDARY BATTERY AND A SECONDARY BATTERY - Disclosed is a porous membrane used for a secondary battery, such as lithium-ion secondary battery, wherein strength is improved and break is difficult to occur while maintaining lithium-ion conductivity. The porous membrane for a secondary battery comprising a binder for the porous membrane and a nonconductive particle, wherein the binder for the porous membrane is a polymer particle having a hetero phase structure, in which internal layer is a polymer wherein vinyl monomer components are polymerized and outer layer is a polymer wherein monomer components containing a hydrophilic functional group are polymerized. The hydrophilic functional group is at least one selected from the group consisting sulfonic acid group, carboxyl group, hydroxyl group and epoxy group. | 07-26-2012 |
20120202103 | BATTERY SEPARATOR, METHOD OF MANUFACTURING A BATTERY SEPARATOR, BATTERY, BATTERY PACK, AND ELECTRONIC APPARATUS - A battery separator includes a porous base material and a heat-resistant layer. The porous base material includes a first surface, a second surface opposed to the first surface, and a hole. The hole is formed in the porous base material and causes the first surface and the second surface to communicate with each other. The heat-resistant layer is configured to cover at least the first surface and a surface of the hole. The heat-resistant layer is formed of an inorganic material and deposited by an atomic layer deposition method. | 08-09-2012 |
20120214043 | Lithium sulfur battery - A lithium sulfur battery comprising an electrolyte solvent which comprises at least one fluorosubstituted compound is described. Preferred fluorosubstituted compounds which are predominantly solvents are notably selected from the group consisting of fluorosubstituted carboxylic acid esters, fluorosubstituted carboxylic acid amides, fluorosubstituted fluorinated ethers, fluorosubstituted carbamates, fluorosubstituted cyclic carbonates, fluorosubstituted acyclic carbonates, fluorosubstituted ethers, perfluoroalkyl phosphoranes, fluorosubstituted phosphites, fluorosubstituted phosphates, fluorosubstituted phosphonates, and fluorosubstituted heterocycles. Monofluoroethylene carbonate, cis-difluoroethylene carbonate, trans-difluoroethylene carbonate, 4,4-difluoroethylene carbonate, trifluoroethylene carbonate, tetrafluoroethylene carbonate, 4-fluoro-4-methyl-1,3-dioxolane-2-one, 4-fluoro-4-ethyl-1,3-dioxolane-2-one, 2,2,2-trifluoroethyl-methyl carbonate, 2,2,2-trifluoroethyl-fluoromethyl carbonate are preferred. The solvent may further comprise a non-fluorinated solvent, e.g., ethylene carbonate, a dialkyl carbonate, or propylene carbonate. Use of such fluorinated compound as additive for such batteries and specific electrolyte solutions. | 08-23-2012 |
20120219841 | LITHIUM ION CELL DESIGN APPARATUS AND METHOD - A spray module for depositing an electro-active material over a flexible conductive substrate is provided. The spray module comprises a first heated roller for heating and transferring the flexible conductive substrate, a second heated roller for heating and transferring the flexible conductive substrate, a first spray dispenser positioned adjacent to the first heated roller for depositing electro-active material onto the flexible conductive substrate as the flexible conductive substrate is heated by the first heated roller, and a second spray dispenser positioned adjacent to the second heated roller for depositing electro-active material over the flexible conductive substrate as the flexible conductive substrate is heated by the second heated roller. | 08-30-2012 |
20120219842 | PROTECTED LITHIUM ELECTRODES HAVING TAPE CAST CERAMIC AND GLASS-CERAMIC MEMBRANES - Alkali (or other active) metal battery and other electrochemical cells incorporating active metal anodes together with aqueous cathode/electrolyte systems. The battery cells have a highly ionically conductive protective membrane adjacent to the alkali metal anode that effectively isolates (de-couples) the alkali metal electrode from solvent, electrolyte processing and/or cathode environments, and at the same time allows ion transport in and out of these environments. Isolation of the anode from other components of a battery cell or other electrochemical cell in this way allows the use of virtually any solvent, electrolyte and/or cathode material in conjunction with the anode. Also, optimization of electrolytes or cathode-side solvent systems may be done without impacting anode stability or performance. In particular, Li/water, Li/air and Li/metal hydride cells, components, configurations and fabrication techniques are provided. | 08-30-2012 |
20120231321 | INTEGRAL BI-LAYER SEPARATOR-ELECTRODE CONSTRUCTION FOR LITHIUM-ION BATTERIES - A porous bi-layer separator composed of a first layer with a contacting array of non-conducting particles overlaid with a second layer of a microporous polymer layer, may be fabricated on the electrode surface of the anode of a lithium-ion battery to form an integral electrode-separator construction. The bi-layer separator may prevent development of a direct electronic path between the anode and cathode of the battery while accommodating electrolyte solution and enabling passage of lithium ions. Such an integral separator should be mechanically robust and tolerant of elevated temperatures. Exemplary bi-layer separators may be fabricated by sequential deposition of solvent-containing slurries and polymer solutions with subsequent controlled evaporation of solvent. The elevated temperature performance of lithium-ion battery cells incorporating such integral electrode-bi-layer separators was demonstrated to exceed the performance of similar cells using commercial and experimental single layer polymer separators. | 09-13-2012 |
20120231322 | Positive active material for rechargeable lithium battery, method of manufacturing the same and rechargeable lithium battery using the same - A positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery using the same, the positive active material including a secondary particle formed of a plurality of primary particles, the primary particles being made of a metal compound capable of intercalating/deintercalating lithium; and a coating layer on a surface of the secondary particle in an island arrangement, the coating layer including a metal oxide, wherein the secondary particle includes pores formed by the primary particles, the pores including a surface pore on the surface of the secondary particle and an internal pore inside the secondary particle, and the metal oxide of the coating layer fills a portion of the surface pore of the secondary particle. | 09-13-2012 |
20120231323 | LAMINATED POROUS FILM, SEPARATOR FOR BATTERY, AND BATTERY - Disclosed is a laminated porous film which has both gas permeability and heat resistance and can exhibit excellent smoothness and excellent pin extraction properties when used as a separator for a battery. The laminated porous film is characterized by having a heat-resistant layer laminated on at least one surface of a polyolefin resin porous film, wherein the heat-resistant layer comprises a filler and a resin binder, and wherein the surface of the heat-resistant layer has a static friction coefficient of 0.45 or less, a gas permeability degree of 2000 sec/100 ml or less and a tensile elastic modulus of 400 to 1000 MPa when the film is stretched in the lengthwise direction at a stretching rate of 3%. | 09-13-2012 |
20120244410 | SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM - A secondary battery capable of suppressing resistance rise even after repeated charge and discharge is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode contains titanium-containing lithium composite as an anode active material, and the electrolytic solution contains cyclic disulfonic acid anhydride. | 09-27-2012 |
20120244411 | LITHIUM-CONTAINING METAL OXIDE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a lithium mixed metal oxide, an electrode and a nonaqueous electrolyte secondary battery. The lithium mixed metal oxide is represented by the following formula (A): | 09-27-2012 |
20120244412 | PERFORATED FILM - The invention relates to a perforated film that has a thickness of less than 20 μm, a tensile strength of 2 N/cm to 40 N/cm, and a perforated surface area of 10% to 90%. | 09-27-2012 |
20120244413 | METHOD FOR PRODUCING LITHIUM COMPOSITE METAL OXIDE, LITHIUM COMPOSITE METAL OXIDE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a method of producing a lithium mixed metal oxide, a lithium mixed metal oxide and a nonaqueous electrolyte secondary battery. The method includes a step of calcining a mixture of one or more compounds of M wherein M is one or more elements selected from the group consisting of nickel, cobalt and manganese, and a lithium compound, in the presence of one or more inactive fluxes selected from the group consisting of a fluoride of A, a chloride of A, a carbonate of A, a sulfate of A, a nitrate of A, a phosphate of A, a hydroxide of A, a molybdate of A and a tungstate of A, wherein A is one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. The lithium mixed metal oxide contains nickel, cobalt and manganese, has a BET specific surface area of from 3 m | 09-27-2012 |
20120251868 | LAMINATED FILM AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a laminated film and a non-aqueous electrolyte secondary battery. The laminated film is a laminated film in which a porous film having a shutdown function, a heat resistant porous layer consisting of an inorganic filler and a binder, and a protective porous layer are stacked on each other in this order. The non-aqueous electrolyte secondary battery is a non-aqueous electrolyte secondary battery comprising a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and an electrolyte, wherein the separator is the above-mentioned laminated film. | 10-04-2012 |
20120251869 | ELECTROCHEMICAL DEVICE WITH IMPROVED CYCLE CHARACTERISTICS - Disclosed is an electrochemical device. The electrochemical device includes: (a) a composite separator including a porous substrate, a first porous coating layer coated on one surface of the porous substrate, and a second porous coating layer coated on the other surface of the porous substrate; (b) an anode disposed to face the first porous coating layer; and (c) a cathode disposed to face the second porous coating layer. The first and second porous coating layers are each independently composed of a mixture including inorganic particles and a binder polymer. The first porous coating layer is thicker than the second porous coating layer. The electrochemical device has good thermal stability and improved cycle characteristics. | 10-04-2012 |
20120258348 | Binder for Separator of Non-Aqueous Electrolyte Battery Comprising 2-Cyanoethyl Group-Containing Polymer and Separator and Battery Using the Same - Provided is a binder used for a heat-resistant porous layer which is comprised by a separator; the separator which comprises the binder and which is comprised by a non-aqueous electrolyte battery with improved stability; and the non-aqueous electrolyte battery comprising the separator. More specifically, provided is a binder for a separator of a non-aqueous electrolyte battery, the binder comprising at least a 2-cyanoethyl group-containing polymer having storage elasticity of 100 Pa or more in a mixed liquid of specified cyclic carbonate ester, specified chain carbonate ester and lithium phosphate hexafluoride. | 10-11-2012 |
20120258349 | Binder for Separator of Non-Aqueous Electrolyte Battery Comprising 2-Cyanoethyl Group-Containing Polymer and Separator and Battery Using the Same - An object of the invention is to provide a binder for a separator which can be comprised by a non-aqueous electrolyte battery with improved heat resistance, a separator comprising the binder, and a non-aqueous electrolyte battery comprising the separator. More specifically, provided are a binder for a separator of a non-aqueous electrolyte battery comprising at least a 2-cyanoethyl group-containing polymer having a molecular weight distribution (Mw/Mn), which is a ratio of a weight-average molecular weight (Mw) to a number-average molecular weight (Mn), of 6 or less, the weight-average molecular weight (Mw) of 50,000 to 1,000,000, and 30% by weight or less of a low molecular weight portion having a molecular weight of 30,000 or less. | 10-11-2012 |
20120258350 | Binder for Separator of Non-Aqueous Electrolyte Battery Comprising 2-Cyanoethyl Group-Containing Polymer and Separator and Battery Using the Same - Object of the invention is to provide a binder for a separator which can be comprised by a non-aqueous electrolyte battery with improved battery properties and heat resistance; the separator comprising the binder; and the non-aqueous electrolyte battery comprising the separator. More specifically, provided is a binder for a separator of a non-aqueous electrolyte battery, the separator comprising a 2-cyanoethyl group-containing polymer having bis-cyanoethyl ether content of 0.5% by weight or less as an impurity. | 10-11-2012 |
20120258351 | ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides an electrode active material, an electrode and a non-aqueous electrolyte secondary battery. The electrode active material contains the following powder (A) and powder (B): | 10-11-2012 |
20120263994 | LITHIUM ION SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM - A lithium ion secondary battery includes a cathode and an anode being opposed to each other with a separator in between, and an electrolytic solution. One or more of the cathode, the anode, and the separator contain an organic silicon compound including a compound having a polysilsesquioxane skeleton. | 10-18-2012 |
20120270090 | LAMINATED FILM, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a laminated film and a non-aqueous electrolyte secondary battery. The laminated film has a structure in which a porous film having a shutdown function, a heat resistant porous layer containing plate-like inorganic particles and a binder, and a protective porous layer are stacked on each other in this order. The non-aqueous electrolyte secondary battery comprises a positive electrode, a negative electrode, a separator located between the positive electrode and the negative electrode, and an electrolyte, wherein the separator is the above-mentioned laminated film. | 10-25-2012 |
20120276438 | TRANSITION METAL PHOSPHATE, PRODUCTION PROCESS THEREOF, POSITIVE ELECTRODE, AND SODIUM SECONDARY BATTERY - The present invention provides a transition metal phosphate and a production process thereof, a positive electrode, and a sodium secondary battery. The transition metal phosphate contains sodium (Na), phosphorus (P) and a transition metal element and having a BET specific surface area of 1 m | 11-01-2012 |
20120282513 | CATHODIC ELECTRODE AND ELECTROCHEMICAL CELL - A cathodic electrode includes at least one carrier having at least one active material applied or deposited thereon, wherein the active material includes a mixture made of a lithium/nickel/manganese/cobalt mixed oxide (NMC), which is not present in a spinel structure, and a lithium manganese oxide (LMO) in a spinel structure. An electrochemical cell includes said cathodic electrode and a separator includes at least one porous ceramic material. | 11-08-2012 |
20120288742 | NON-AQUEOUS SECONDARY BATTERY - The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator, the negative electrode contains a negative electrode active material containing a graphitic carbon material and a composite in which a carbon coating layer is formed on a surface of a core material containing Si and O as constituent elements, the composite has a carbon content of 10 to 30 mass %, the composite has an intensity ratio I | 11-15-2012 |
20120295148 | ELECTROLYTIC SOLUTION FOR SECONDARY BATTERY, SECONDARY BATTERY, ELECTRONIC APPLIANCE, POWER TOOL, ELECTRIC VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM - A secondary battery includes: a positive electrode, a negative electrode, and an electrolytic solution containing a nitrogen-containing aromatic compound, wherein the nitrogen-containing compound contains an aromatic skeleton containing one or two or more aromatic rings and one or two or more nitrogen-containing functional groups bonded to the one or two or more aromatic rings and represented by the following formula (1) | 11-22-2012 |
20120301774 | INORGANIC/ORGANIC COMPOSITE POROUS SEPARATOR AND ELECTROCHEMICAL DEVICE USING THE SAME - Provided is an inorganic/organic composite porous separator including a porous substrate having pores and an active layer formed on the porous substrate. The active layer contains mixture of binder and inorganic particles. The inorganic/organic composite porous separator of the present invention has desirable anti-oxidation performance, and can prevent the separator from being oxidized in the lithium secondary battery using high voltage anode material. Also provided is a method for manufacturing the inorganic/organic composite porous separator and an electrochemical device using the same. | 11-29-2012 |
20120308871 | PRODUCTION AND USE OF CERAMIC COMPOSITE MATERIALS BASED ON A POLYMERIC CARRIER FILM - The invention relates to a ceramic composite material ( | 12-06-2012 |
20120315530 | ELECTRODE MIXTURE, ELECTRODE, AND LITHIUM SECONDARY BATTERY - An electrode mixture containing a lithium mixed metal oxide having a BET specific surface area of 2 to 30 m | 12-13-2012 |
20120321930 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - There are provided an electrode assembly and a secondary battery using the same, in which a stack-type secondary battery includes an edge portion of at least one of the electrode plates to be adhered to a corresponding edge portion of the separator, so that it is possible to inhibit contraction of the separator. An electrode assembly comprises a first electrode plate; a second electrode plate; and a separator interposed between the first and second electrode plates. In the electrode assembly, the first and second electrode plates and the separator are stacked such that an edge portion of at least one of the first and second electrode plates is adhered to an edge portion of the separator. | 12-20-2012 |
20120321931 | SECONDARY BATTERY - A secondary battery includes at least one first electrode plate, at least one second electrode plate and separators. The first electrode plate has a first active material layer intermittently coated in the length direction thereof and a first non-coating portion on which the first active material layer is not coated. The first non-coating portion is folded. The second electrode plate is alternately positioned with the first electrode plate, and has a second active material layer intermittently coated in the length direction thereof and a second non-coating portion on which the second active material layer is not coated. The second non-coating portion is folded. The separators are positioned between the respective first and second electrode plates. The secondary battery further includes first and second electrode tabs that respectively clamp at least one of the first non-coating portions and at least one of the second non-coating portions. | 12-20-2012 |
20120321932 | LAMINATION TYPE SECONDARY BATTERIES - The present invention provides a lamination type secondary battery in which separators are prevented from becoming wrinkled and are free from laminating dislocation. An aspect of the present invention is a lamination type secondary battery in which a plurality of planar positive electrodes ( | 12-20-2012 |
20120321933 | SECONDARY BATTERY WITH IMPROVED STORAGE CHARACTERISTICS AND METHOD FOR MANUFACTURING THE SAME - Provided is a secondary battery comprising a separator having an inorganic layer wherein active sites of inorganic particles in the inorganic layer are modified into non-reactive sites. Use of the separator leads to improvements in wettability of an electrolyte and thermoelectric stability and storage characteristics of the secondary battery. Provided is also a method of manufacturing the same secondary battery. | 12-20-2012 |
20120328929 | SEPARATOR FOR ELECTROCHEMICAL DEVICE, ELECTROCHEMICAL DEVICE USING SAME, AND METHOD FOR PRODUCING THE SEPARATOR FOR ELECTROCHEMICAL DEVICE - A separator for an electrochemical device of the present invention includes, on at least one side of a resin porous film including a thermoplastic resin as a main component, a heat-resistant porous layer including heat-resistant fine particles as a main component. The resin porous film has a surface tension (wetting index) A of 35 mN/m or less, the heat-resistant porous layer is made from a heat-resistant porous layer forming composition containing a water-based solvent and having a surface tension B of less than 29 mN/m, and a relationship between the surface tension (wetting index) A and the surface tension B satisfies A>B. | 12-27-2012 |
20130004826 | LITHIUM ION BATTERY - The present disclosure relates to a lithium ion battery. The lithium ion battery cathode includes a cathode, a separator, an anode, and a nonaqueous electrolyte solution. The cathode includes a cathode current collector and a cathode material layer disposed on a surface of the cathode current collector. The cathode material layer comprises cathode active material, conductive agent, and adhesive uniformly mixed together. The cathode active material comprises cathode active material particles and AlPO | 01-03-2013 |
20130011715 | ELECTRODE ASSEMBLY FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME - Disclosed is an electrode assembly having a structure in which a plurality of unit cells are bonded to one or both surfaces of a first separator whose length is greater than width and are stacked in a zigzag pattern or wound sequentially. The first separator includes a first porous electrode adhesive layer, to which electrodes of the unit cells are adhered, formed at one surface thereof to which the unit cells are bonded. The first porous electrode adhesive layer includes a mixture of inorganic particles and a binder polymer. Each of the unit cells includes a second separator including second porous electrode adhesive layers, to which electrodes of the unit cell are adhered, formed at both surfaces thereof. Each of the second porous electrode adhesive layers includes a mixture of inorganic particles and a binder polymer. Further disclosed is an electrochemical device including the electrode assembly. | 01-10-2013 |
20130017429 | Separator And Electrochemical Device Comprising The Same - A separator may include (A) a porous substrate having pores, and (B) a porous coating layer formed on at least one surface of the porous substrate and made from a mixture of inorganic particles and a binder polymer, and the binder polymer may contain a copolymer of (a) a first monomer unit with at least one of an amine group and an amide group at a side chain, and (b) a second monomer unit of (meth)acrylate with an alkyl group having 1 to 14 carbon atoms. The porous coating layer of the separator may have a high packing density, thereby easily forming a thin film battery without hindering safety, and may have good adhesive strength with the porous substrate, thereby preventing detachment of the inorganic particles in the porous coating layer during assembly of an electrochemical device. | 01-17-2013 |
20130017430 | POLYOLEFIN RESIN POROUS FILM AND BATTERY SEPARATORAANM Terakawa; ToruAACI ShigaAACO JPAAGP Terakawa; Toru Shiga JPAANM Yamada; TakeyoshiAACI ShigaAACO JPAAGP Yamada; Takeyoshi Shiga JPAANM Usami; YasushiAACI ShigaAACO JPAAGP Usami; Yasushi Shiga JP - As an object of the present invention, to provide a polyolefin resin porous film fulfilling high continuity, excellent dimensional stability and shutdown function which closes the pores sensitively and completely in a temperature range of 120 to 140° C. without closing the pores at less than 120° C. The present invention relates to a polyolefin resin porous film having at least one layer each of a layer comprising as the main component a polypropylene resin composition (A) and a layer comprising as the main component a polyethylene resin composition (B) fulfilling the condition (i) the melting point of the polyethylene resin composition (B) is 130° C. or higher, and the condition (ii) the melt flow rate (MFR) of the polyethylene resin composition (B) is 2.0 to 15 g/10 minutes. | 01-17-2013 |
20130034769 | LAMINATED POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a laminated porous film that simultaneously satisfies communication, heat resistance and workability and has excellent properties as a separator for non-aqueous electrolyte secondary batteries. The laminated porous film is characterized in that a heat-resistant layer comprising a filler (a), a resin binder(b), and an extending agent(c) is laminated on at least one side of a porous polyolefin resin film, and in that the air permeability is no more than 2,000 s/100 ml. | 02-07-2013 |
20130040183 | ELECTROCHEMICAL CELLS - The present invention relates to electrochemical cells comprising
| 02-14-2013 |
20130040184 | HIGHLY POROUS SEPARATOR FOIL - The invention relates to a biaxially oriented single- or multilayer porous foil, the porosity of which is generated by transformation of ss-crystalline polypropylene during orientation of the foil. The Gurley value of the foil is <250 s. The invention also relates to a process for producing the foil by using a low transverse stretching velocity for the transverse orientation process. | 02-14-2013 |
20130065104 | Bipolar Battery and Plate - A bipolar battery plate is utilized for production of a bipolar battery. The bipolar battery plate includes a frame, a substrate, a conductor, a filler, first and second lead layers, and positive and negative active materials. The substrate is positioned within the frame and includes a plurality of perforations that are sealed by a filler, with the conductor positioned in the perforation and held by the filler. The conductor connects to the plurality of perforations. The first lead layer positioned on one side of the substrate, while the second lead layer positioned on another side of the substrate. The first and second lead layers electrically connected to each other through the filler. The positive active material (PAM) positioned on a surface of the first lead layer, while the negative active material (NAM) positioned on a surface of the second lead layer. | 03-14-2013 |
20130101885 | METHOD FOR MANUFACTURING SEPARATOR, SEPARATOR MANUFACTURED BY THE METHOD AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE INCLUDING THE SEPARATOR - A method for manufacturing a separator includes (S | 04-25-2013 |
20130101886 | LITHIUM SECONDARY BATTERY - In one aspect, a lithium secondary battery that includes a positive electrode including a high-voltage positive active material; and a separator is provided. The high voltage positive active material can have a discharge plateau voltage of greater than or equal to about 4.6V with respect to a Li counter electrode, and the separator can include a porous substrate having a porosity of about 40% to about 60%. | 04-25-2013 |
20130101887 | SEPARATOR FOR VALVE REGULATED LEAD-ACID BATTERY, AND VALVE REGULATED LEAD-ACID BATTERY - A separator for a valve regulated lead-acid battery comprises a paper sheet made by a wet papermaking process, mainly made of glass microfibers, wherein the separator is a structure having a three-layer laminated structure which comprises two thin-fiber layers and one thick-fiber layer, wherein the two thin-fiber layers cover both surfaces of the thick-fiber layer in the thicknesswise direction of the separator to constitute the three-layer laminated structure, wherein each of the thin-fiber layers is made of glass fibers having an average fiber diameter of 0.4 to 1.0 μm as the glass microfibers and has an average pore diameter of 3.5 μm or less, and the thick-fiber layer is made of glass fibers having an average fiber diameter of 1.3 to 4.0 μm as the glass microfibers and has an average pore diameter which is 4.0 μm or more and which is 1.5 times or more that of the thin-fiber layer, wherein the average fiber diameter of the glass fibers in the all layers of the separator is 1.2 μm or more, and the thickness ratio of the thin-fiber layers to the thick-fiber layer in the all layers of the separator is 10/90 to 50/50. In the valve regulated lead-acid battery, both the improvement of the compressive force lowering prevention and the improvement of the electrolyte stratification prevention can be achieved, improving the movement property of the electrolyte within the separator. | 04-25-2013 |
20130101888 | BATTERY SEPARATOR AND BATTERY - Provided are a battery separator with which a battery with improved safety can be formed, and a battery including the separator. The battery separator of the present invention includes a multilayer porous film including at least a resin porous film (I) and a heat-resistant porous layer (II) predominantly composed of heat-resistant fine particles. The battery separator shuts down at a temperature of 100 to 150° C. and at a speed of 50 Ω/min·cm | 04-25-2013 |
20130122347 | POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREFOR - A power storage device having: a laminated body formed by providing a separator layer between a first electrode which is one of a cathode and an anode and a second electrode which is the other electrode; an electrolyte; and a package which houses the laminated body and the electrolyte. At least two first electrode composite sheets are included which are each obtained by integrating a first collector electrode, a first electrode active material layer provided on one principal surface of the first collector electrode, and a separator layer covering at least part of the one principal surface, and the other principal surface of the first collector electrode of one first electrode composite sheet out of the at least two first electrode composite sheets is opposed to, and bonded to, the other principal surface of the first collector electrode of the other first electrode composite sheet. | 05-16-2013 |
20130130090 | TRANSITION METAL COMPOSITE HYDROXIDE AND LITHIUM COMPOSITE METAL OXIDE - Provided are a transition metal mixed hydroxide comprising an alkali metal other than Li, SO | 05-23-2013 |
20130130091 | ELECTRICITY SUPPLY ELEMENT AND CERAMIC SEPARATOR THEREOF - An electricity supply element and the ceramic separator thereof are provided. The ceramic separator is adapted to separate two electrode layers of the electricity supply element for permitting ion migration and electrical separation. The ceramic separator is made of ceramic particulates and the adhesive. The adhesive employs dual binder system, which includes linear polymer and cross-linking polymer. The adhesion and heat tolerance are enhanced by the characteristic of the two type of polymers. The respective position of the two electrode layers are maintained during high operation temperature to improve the stability, and battery performance. Also, the ceramic separator enhances the ion conductivity and reduces the possibility of the micro-short to increase practical utilization. | 05-23-2013 |
20130130092 | SEPARATOR WITH INCREASED PUNCTURE RESISTANCE - A separator with a main part which is made of nonwoven material, and is provided with a coating. The coating contains filler particles, cellulose, and flexible organic binder particles. The filler particles and flexible organic binder particles are connected to each other by the cellulose. Such a separator exhibits high permeability with increased mechanical stability. The cellulose of the separator contains cellulose derivatives that have a chain length of at least 100 repeating units, preferably a chain length of at least 200 repeating units. | 05-23-2013 |
20130143095 | LAMINATED POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A laminated porous film, where a coating layer (layer II) containing a filler (a), a resin binder (b) and an adhesive agent (c) is laminated on at least one surface of a polyolefin resin porous film (layer I), is provided. The adhesion between the polyolefin resin porous film that serves as a base film and the coating layer is high. The laminated porous film has heat resistance and exhibits excellent properties when used as a separator for a non-aqueous electrolyte secondary battery. | 06-06-2013 |
20130149587 | Separator Having Porous Coating Layer And Electrochemical Device Having The Same - The present invention relates to a separator comprising a porous substrate; and a porous coating layer formed on at least one surface of the porous substrate and comprising a mixture of first inorganic particles coated with a coupling agent on the surface thereof, second inorganic particles coated with a coupling agent on the surface thereof and a binder polymer, the first inorganic particles having an average diameter of 1 to 10 μm and the second inorganic particles having an average diameter of 50 to 500 nm. In accordance with the present invention, a separator having a porous coating layer comprising two kinds of inorganic particles which are coated with a coupling agent is manufactured to minimize a mechanochemical reaction, thereby inhibiting the production of unnecessary substances, and to easily introduce functional particles. | 06-13-2013 |
20130149588 | ELECTROCHEMICAL CELLS COMPRISING CHELATE LIGANDS - The present invention relates to electrochemical cells comprising
| 06-13-2013 |
20130149589 | ELECTROCHEMICAL CELLS COMPRISING A NITROGEN-CONTAINING POLYMER - The present invention relates to electrochemical cells comprising
| 06-13-2013 |
20130157106 | LITHIUM METAL POWDER-CARBON POWDER COMPOSITE ANODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM METAL SECONDARY BATTERY COMPRISING THE SAME - Provided are an anode in which lithium metal powder and carbon powder are physically mixed with each other to form a composite and the composite is applied as an anode layer, and a lithium metal secondary battery including the anode. The anode of the present invention may suppress the formation of lithium dendrites and the change in volume of cells generated in a rechargeable battery which uses a lithium metal anode and significantly improve the cycle life-span of a lithium metal secondary battery by physically mixing lithium metal particles and carbon particles having an equivalent average particle diameter with each other to be applied as an anode layer. | 06-20-2013 |
20130157107 | SEPARATORS UTILIZED IN LITHIUM BATTERIES - In an embodiment of the disclosure, a separator utilized in a lithium battery is provided. The separator includes a non-woven polyester support, a porous layer of polyvinylidene fluoride (PVDF) or its derivatives formed on the non-woven polyester support, a layer of UV-curing or thermal-curing polymers formed on top of the porous layer of polyvinylidene fluoride (PVDF) or its derivatives. | 06-20-2013 |
20130157108 | LITHIUM COMPOSITE METAL OXIDE AND METHOD FOR PRODUCING SAME - The present invention provides a non-aqueous electrolyte secondary battery capable of exhibiting high discharge capacity maintenance rate at a high current rate, a lithium composite metal oxide useful therefor, and a method for producing the lithium composite metal oxide. This lithium composite metal oxide comprises Ni, Mn, Co, and Fe, and the BET specific surface area thereof is 3 m | 06-20-2013 |
20130183569 | ALKALINE BATTERY SEPARATOR AND ALKALINE BATTERY USING SEPARATOR - Provided are an alkaline battery separator and an alkaline battery including the separator. The separator includes at least a coarse layer and a dense layer denser than the coarse layer. The coarse layer contains an alkaline-resistant cellulose fiber having a freeness value of 350 to 650 ml as a whole in the proportion of 25 to 65% by weight. The alkaline-resistant cellulose fiber includes at least two kinds of alkaline-resistant cellulose fibers having different freeness with each other. The difference in freeness value between the alkaline-resistant cellulose fibers having the highest and lowest freeness values is 300 to 700 ml. The dense layer contains an alkaline-resistant cellulose fiber which as a whole has a freeness value of 0 to 400 ml. The separator has a maximum pore size of 65 μm or smaller, and a liquid absorption capacity of 5 g/g or higher. | 07-18-2013 |
20130189561 | REINFORCING MATERIAL FOR BATTERY CELL AND BATTERY CELL INCLUDING THE SAME - In one aspect, a battery cell including: an electrode assembly, wherein the electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; electrode tabs connected to the electrode plate and the second electrode plate, and extending from one side of the electrode assembly; a case for sealing the electrode assembly and an electrolyte; and a reinforcing material disposed in at least a region between the electrode assembly and the case, and comprising ceramic material and a polymer gel is provided. | 07-25-2013 |
20130196208 | LAMINATED POROUS FILM, SEPARATOR FOR BATTERY, AND BATTERY - The purpose is to provide a laminated porous film having shutdown characteristics, which are important in terms of ensuring safety, while also having excellent air permeation performance, which contributes to electrical performance, when used a separator for a battery. The present invention is a laminated porous film characterized by comprising: a porous film layer having a thickness of 10 um or more, the main component thereof being a thermoplastics resin composition having a crystal-melting peak temperature of 150-250° C.; and a nonwoven fiber layer having a fiber diameter of 1 um or less, the main component thereof being a thermoplastic resin composition having a crystal-melting peak temperature of 100° C. to less than 150° C.; the air permeability of the laminated porous film being 10-10,000 s/100 mL. | 08-01-2013 |
20130202944 | LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery that includes a separator including a coating layer including an inorganic compound, a polymer and an organic/inorganic bonding silane compound formed from an organic/inorganic bonding silane compound having a first reactive functional group; and an electrode contacting the coating layer, and including an active material and a binder formed from a binder having a second reactive functional group, wherein the first reactive functional group is reactive with the second reactive functional group, and the lithium secondary battery includes a chemical bond generated by reacting the first reactive functional group with the second reactive functional group. | 08-08-2013 |
20130209860 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery in which formation of a flame retardant layer formed on the surface of an electrode or the like hardly affects the discharge characteristics is provided. A non-aqueous electrolyte battery | 08-15-2013 |
20130216891 | LITHIUM BATTERY - A lithium battery including a positive electrode; a negative electrode including a negative active material layer including a first aqueous binder and a second aqueous binder, the first aqueous binder including a monomer unit; and a separator between the positive electrode and the negative electrode, the separator including a base material layer and a polymer layer formed on at least one surface of the base material layer, and the polymer layer including a non-aqueous binder including a monomer unit identical to the monomer unit of the first aqueous binder is disclosed. | 08-22-2013 |
20130216892 | SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND HEAT-SEALABLE INSULATING FILM FOR SECONDARY BATTERY. - A secondary battery includes an outer housing and an electrode body including a positive electrode member, separator member and a negative electrode member stacked in this order wherein the positive electrode member and the negative electrode member are formed from a collector and an active material layer formed to cover one end on the collector, an insulating body in which an insulating material that does not exhibit adhesiveness at room temperature is adhered with an adhesive strength of 1 N/15 mm or greater onto the collector constituting the positive electrode member or the negative electrode member, and a peripheral edge of the positive electrode member or the negative electrode member has a cross-sectional surface including the collector and the insulating body. | 08-22-2013 |
20130224552 | SEPARATOR INCLUDING COATING LAYER AND BATTERY INCLUDING THE SAME - A separator includes a polyolefin base film and a coating layer, the coating layer containing inorganic particles having an average particle size of about 1 nm to about 700 nm and an organic binder of a polyvinylidene fluoride homopolymer, the coating layer having a density of about 1.2 g/m | 08-29-2013 |
20130224553 | SEPARATOR INCLUDING COATING LAYER AND BATTERY INCLUDING THE SAME - A separator includes a coating layer, the coating layer containing a polyvinylidene fluoride homopolymer, a polyvinylidene fluoride-hexafluoropropylene copolymer, a solvent, and inorganic particles, the solvent being present in an amount of about 100 ppm or less in the coating layer. | 08-29-2013 |
20130224554 | SEPARATOR INCLUDING COATING LAYER CONTAINING POLYIMIDE, AND BATTERY INCLUDING THE SAME - A separator includes a base film and a coating layer on one or both sides of the base film, the coating layer being formed using a coating agent including a polyimide, an organic binder, and a solvent. A remaining amount of the solvent in the separator is about 100 ppm or less. | 08-29-2013 |
20130224555 | SEPARATOR INCLUDING COATING LAYER OF INORGANIC AND ORGANIC MIXTURE, AND BATTERY INCLUDING THE SAME - A polyolefin porous separator includes a polyolefin porous base film, and a coating layer formed on one or both sides of the base film. The coating layer includes inorganic particles. The inorganic particles include first inorganic particles having an average particle size ranging from 150 nm to 600 nm, and second inorganic particles having an average particle size ranging from 5 nm to 90 nm. The separator has a thermal conductivity of 0.3 W/m·K or more. | 08-29-2013 |
20130224556 | SEPARATOR INCLUDING COATING LAYER OF INORGANIC AND ORGANIC MIXTURE, AND BATTERY INCLUDING THE SAME - A porous separator including a porous base film; and a coating layer, the coating layer being on a surface of the porous base film and including a polyvinylidene fluoride homopolymer, a polyvinylidene fluoride-hexafluoropropylene copolymer, and inorganic particles, wherein the separator exhibits a thermal shrinkage of about 30% or less in a machine direction (MD) or in a transverse direction (TD), as measured after leaving the separator at 150° C. for 1 hour, a peel strength of about 50 gf/cm | 08-29-2013 |
20130224557 | SEPARATOR FOR NON-AQUEOUS BATTERIES AND NON-AQUEOUS BATTERY EQUIPPED WITH SAME, AND PROCESS FOR MANUFACTURING SEPARATOR FOR NON-AQUEOUS BATTERIES - Provided is a separator for non-aqueous batteries, capable of being usefully used in non-aqueous batteries, and a non-aqueous battery equipped with this separator. The separator for non-aqueous batteries includes: a base layer comprising a fiber aggregate, and an electrolyte-swellable resin layer formed on at least one surface of the base layer, the resin layer comprising a urethane resin (C) obtained by reacting a polyol (A) including a vinyl polymer (a1) and a polyether polyol (a2) with a polyisocyanate (B). The vinyl polymer (a1) has as a main chain a vinyl polymer (a1′) having two hydroxyl groups at one of the termini of the main chain, and a polyoxyethylene chain having a number average molecular weight of 200 to 800 as a side chain, the percentage of the polyoxyethylene chain based on the vinyl polymer (a1) being within the range of 70 mass % to 98 mass %. | 08-29-2013 |
20130236765 | POLYMER LI-ION BATTERY AND THE SEPARATOR THEREOF - The invention pertains to the technical field of a polymer Li-ion battery, in particular to a polymer Li-ion battery separator, comprising porous substrate, wherein at least one surface of the porous substrate is coated with an inorganic coating and an organic coating; the organic coating, shaped like an island and/or linear distribution, is coated on the surface of the porous substrate and/or the inorganic matter coating. | 09-12-2013 |
20130236766 | HEAT-RESISTANT SEPARATOR, ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME, AND METHOD FOR MANUFACTURING SECONDARY BATTERY - A porous polymer web layer of ultrafine fibers, and a non-porous film layer made of a material that is swellable and allows conduction of electrolyte ions in an electrolyte solution, are integrally provided on one surface or both surfaces of a positive electrode or a negative electrode, and a short circuit between the positive electrode and the negative electrode by the inorganic particles contained in polymer web is prevented although a battery is overheated. The electrode assembly includes: a positive electrode; a negative electrode; and a separator that separates the positive electrode and the negative electrode. The separator comprises: a first non-porous polymer film layer; and a porous polymer web layer that is formed on the first non-porous polymer film layer and is made of ultrafine fibers of a mixture of a heat-resistant polymer and inorganic particles or a mixture of a heat-resistant polymer, a swellable polymer, and inorganic particles. | 09-12-2013 |
20130244080 | SEPARATOR FOR LITHIUM SECONDARY BATTERY - A separator for a lithium secondary battery includes a coating layer including an organic/inorganic bindable silane compound having a reactive functional group, the reactive functional group being selected from the group consisting of amino groups, isocyanate groups, epoxy groups, mercapto groups, and combinations thereof; and an inorganic compound. The separator has excellent high temperature stability. | 09-19-2013 |
20130244081 | SEPARATOR, BATTERY USING THE SAME, AND METHOD FOR MANUFACTURING SEPARATOR - A separator which includes a covering layer in which a fine framework of polyolefin resin is coated with a glass layer and an exposed layer in which the polyolefin resin is exposed is provided. A battery is provided having a cathode and an anode, an electrolyte, and a separator where the separator has the covering layer in which the fine framework of polyolefin resin is coated with the glass layer and a method for manufacturing a separator including the step of coating a fine framework of polyolefin resin with the glass layer by applying a precursor containing viscous liquid product which contains only polysilazane compound or a mixture of viscous liquid product which contains only polysilazane compound with polycarbosilazane compound to the polyolefin resin and placing the precursor applied polyolefine resin in a water bath to dry. | 09-19-2013 |
20130252066 | SEPARATOR AND RECHARGEABLE LITHIUM BATTERY - In one aspect, a separator that includes a porous substrate; and a coating layer including an inorganic compound-organic/inorganic binder, and a binder polymer, and a rechargeable lithium battery including the separator is provided. | 09-26-2013 |
20130260206 | ELECTROCHEMICAL CELL COMPRISING A SULFUR-CONTAINING POLYMER - The present invention relates to electrochemical cells comprising
| 10-03-2013 |
20130260207 | BATTERY ELECTRODE OR SEPARATOR SURFACE PROTECTIVE AGENT COMPOSITION, BATTERY ELECTRODE OR SEPARATOR PROTECTED BY THE COMPOSITION, AND BATTERY HAVING THE BATTERY ELECTRODE OR SEPARATOR - A battery electrode or separator surface protective agent composition having fluidity and being capable of being solidified by hot melt, and comprising at least two types of organic particles comprising organic materials, wherein the organic particles of types different from each other are substantially incompatible with each other, wherein when the composition is solidified by hot melt, the organic particles of the same type thermally fuse with one another to form a continuous phase. | 10-03-2013 |
20130266842 | Lithium Ion Cell - A lithium-ion cell includes a negative electrode, a positive electrode, and a separator arranged between the negative electrode and the positive electrode. In order to increase the mechanical stability of the separator and in the process to negatively influence the electrical power of the lithium-ion cell as little as possible, the separator includes at least one inorganic solid electrolyte layer conducting lithium ions. | 10-10-2013 |
20130273406 | SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS - A secondary battery includes: a cathode and an anode that are opposed to each other with a separator in between; and an electrolytic solution. The cathode includes a cathode active material layer on a cathode current collector. The anode includes an anode active material layer on an anode current collector. A heat-resistant layer is provided at least in a region in which the cathode active material layer and the anode active material layer are opposed to each other between the cathode and the anode. The heat-resistant layer includes a material having a higher melting point or higher decomposition temperature than a melting point or decomposition temperature of the separator. The electrolytic solution includes an unsaturated cyclic ester carbonate. | 10-17-2013 |
20130273407 | HEAT RESISTANCE LAYER FOR NONAQUEOUS SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NONAQUEOUS SECONDARY BATTERY - A non-aqueous electrochemical cell is disclosed having a heat-resistant coating on at least one of a negative electrode, a positive electrode, and a separator, if provided. The heat-resistant coating may consume heat in the cell to stabilize the cell, act as an electrical insulator to prevent the cell from short circuiting, and increase the mechanical strength and compression resistance of the coated component. In certain embodiments, the heat-resistant coating serves as a solid state electrolyte to produce a solid state electrochemical cell. | 10-17-2013 |
20130273408 | SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY - The present invention provides a separator for a non-aqueous electrolyte battery that includes a porous base material including a polyolefin and a heat-resistant porous layer provided on at least one surface of the porous base material and including a heat-resistant resin, in which when a thermomechanical analysis measurement has been performed by applying a constant load, the separator for a non-aqueous electrolyte battery satisfies the following conditions (i) and (ii):
| 10-17-2013 |
20130280583 | SEPARATOR AND ELECTROCHEMICAL DEVICE HAVING THE SAME - The present invention refers to a separator for an electrochemical device and an electrochemical device having the same. More specifically, the separator of the present invention comprises a porous substrate; a first porous coating layer formed on one surface of the porous substrate and comprising a mixture of inorganic particles and a first binder polymer; and a second porous coating layer formed on the other surface of the porous substrate and comprising a product obtained by drying a mixture of a solvent, a non-solvent and a second binder polymer. | 10-24-2013 |
20130280584 | SLURRY FOR SECONDARY BATTERY POROUS MEMBRANES, SECONDARY BATTERY POROUS MEMBRANE, SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY SEPARATOR, SECONDARY BATTERY, AND METHOD FOR PRODUCING SECONDARY BATTERY POROUS MEMBRANE - To provide a secondary battery porous membrane which is produced using a slurry for secondary battery porous membranes having excellent coatability and excellent dispersibility of insulating inorganic particles and is capable of improving the cycle characteristics of a secondary battery that is obtained using the secondary battery porous membrane, said secondary battery porous membrane having high flexibility and low water content and being capable of preventing particle fall-off. [Solution] A slurry for secondary battery porous membranes of the present invention is characterized by containing: insulating inorganic particles, each of which has a surface functional group that is selected from the group consisting of an amino group, an epoxy group; a mercapto group and an isocyanate group; a binder which has a reactive group that is crosslinkable with the surface functional group; and a solvent. | 10-24-2013 |
20130288101 | SECONDARY BATTERY - A secondary battery includes an electrode assembly includes first and second electrode non-coating portions exposed from respective sides of an electrode assembly, first and second collecting plates in contact with and fixed to the respective first and second electrode non-coating portions, a retainer including first and second fixing slits that accommodate the first and second collecting plates connected to the electrode assembly, respectively, and a case that accommodates the retainer accommodating the electrode assembly and the first collecting plate. The retainer includes a first side part including the first fixing slit, a second side part facing the first side part and including the second fixing slit, and a bottom part connecting the first and second side parts to each other. | 10-31-2013 |
20130288102 | MICROPOROUS FILM, METHODS FOR MAKING SUCH FILM, AND USE FOR SUCH FILM AS BATTERY SEPARATOR FILM - A microporous membrane includes a low melting polypropylene, the low melting polypropylene being a polypropylene homopolymer or copolymer having an MFR≧2.0×10 | 10-31-2013 |
20130302661 | SEPARATOR AND METHOD OF MANUFACTURING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A separator for a lithium battery includes a porous substrate and a coating layer on at least one side of the porous substrate, the coating layer having a first side adjacent to the porous substrate, and a second side opposite the first side. The coating layer may include an inorganic compound and a polymer binder, and an amount of the polymer binder at the second side is greater than an amount of the polymer binder at the first side. A rechargeable lithium battery includes the separator. | 11-14-2013 |
20130316218 | ELECTROCHEMICAL ENERGY ACCUMULATOR - A glass-based material is disclosed, which is suitable for the production of a separator for an electrochemical energy accumulator, in particular for a lithium ion accumulator, wherein the glass-based material comprises at least the following constituents (in wt.-% based on oxide): SiO | 11-28-2013 |
20130316219 | METHOD FOR MANUFACTURING SEPARATOR, SEPARATOR MANUFACTURED THEREFROM, AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME - The present invention provides a method for manufacturing a separator, comprising the steps of (S1) preparing a porous planar substrate having multiple pores; (S2) coating a coating solution obtained by dissolving a binder polymer in a solvent and dispersing inoganic particles therein on the porous substrate to form a porous coating layer and drying the porous coating layer; and (S3) applying a binder solution on the surface of the dried porous coating layer to form an adhesive layer, wherein the binder solution has a surface energy of at least 10 mN/m higher than that of the porous coating layer and a contact angle of the binder solution to the surface of the porous coating layer maintained at 80° or more for 30 seconds. In accordance with the present invention, a separator capable of obtaining sufficient adhesion force with minimizing the amount of an adhesive used for the adhesion with an electrode, and minimizing the deterioration of battery performances can be easily manufactured. | 11-28-2013 |
20130316220 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - An electrode assembly for a battery. The electrode assembly includes a positive electrode with a positive electrode active material layer and a negative electrode with a negative electrode active material layer. The assembly further includes a separator that has a porous layer formed of a ceramic material and a binder and a polyolefin resin layer. The porous layer has a thickness of about 4 to 6 μm and the polyolefin resin layer has a thickness of about 12 to 16 μm. | 11-28-2013 |
20130316221 | LITHIUM SECONDARY BATTERY AND PREPARATION THEREOF - The present invention provides a lithium secondary battery and the preparation thereof, more specifically a lithium secondary battery comprising an electrode assembly having a cathode, an anode, and a separator interposed between the cathode and the anode; and a non-aqueous electrolyte solution impregnated in the electrode assembly, wherein the separator further comprises a layer having a plurality of destroyed capsules dispersed therein, the layer being formed on at least one surface of the separator coming into contact with the cathode and the anode, and the destroyed capsules has a film formed from a binder polymer and inorganic particles dispersed therebetween. The lithium secondary battery of the present invention can be prepared without the separate introducing process of a non-aqueous electrolyte solution, and has a separator exhibiting improved mechanical property and safety. | 11-28-2013 |
20130323569 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A separator for a rechargeable lithium battery includes a porous substrate; and a coating layer disposed on one or more sides of the porous substrate, the coating layer including organic particles and a binder polymer, wherein the organic particles include a material different from that of the binder polymer and the binder polymer is included in the coating layer in an amount in a range of 50 to 99 wt % based on the total amount of the coating layer, and a rechargeable lithium battery including the same. | 12-05-2013 |
20130330591 | POROUS EPOXY RESIN MEMBRANE, SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, COMPOSITE SEMIPERMEABLE MEMBRANE, AND PRODUCTION METHODS THEREOF - The present invention provides a method for producing a porous membrane. The method allows: avoidance of use of a solvent that places a large load on the environment; relatively easy control of parameters such as the porosity and the pore diameter; and high chemical stability of a resultant porous membrane. The method for producing a porous membrane of the present invention includes the steps of: preparing an epoxy resin composition containing an epoxy resin, a curing agent represented by H | 12-12-2013 |
20130337311 | Polyolefin-Based Porous Film and Method for Producing the Same - A method for producing a polyolefin-based porous film includes an (A) step: a raw fabric forming step for forming a non-porous raw fabric from a polyolefin-based resin composition, a (B) step: an MD cold stretching step for cold stretching the non-porous raw fabric obtained in the (A) step at a temperature of −20° C. to (Tm−30)° C. (Tm is a melting point (° C.) of the non-porous raw fabric) in an extruding direction (MD) of the raw fabric to make the raw fabric porous; a (D) step: a TD cold stretching step for cold stretching a film processed in the (B) step in a direction (TD) perpendicular to the MD, and an (H) step: a thermal fixing step, in the above order. | 12-19-2013 |
20130344374 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - According to one embodiment, there is provided a nonaqueous electrolyte secondary battery. A positive electrode current collector comprises a coated portion on which the positive electrode active material layer is provided and a noncoated portion which is adjacent to the coated portion in a direction parallel to the first surface, in which the positive electrode active material layer is not present. A density of the positive electrode active material layer is within a range of 3.1 g/cc to 3.4 g/cc. A ratio W1/W2 of a mass of the coated portion per unit area (W1) to a mass of the noncoated portion per unit area (W2) is from 0.997 to 1. | 12-26-2013 |
20140004405 | SEPARATOR AND METHOD FOR MANUFACTURING SEPARATOR | 01-02-2014 |
20140004406 | UNIFICATION-TYPED ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME | 01-02-2014 |
20140017547 | ADDITIVE FOR ELECTROLYTES IN RECHARGEABLE LITHIUM ION BATTERIES - The invention relates to a method for reducing the loss of electrical capacitance of a rechargeable lithium ion battery when charging and discharging, comprising: (i) introducing an esterified aliphatic dicarboxylic acid into the electrolyte contained in the battery, said electrolyte comprising an organic solvent and a conducting salt. | 01-16-2014 |
20140017548 | CENTER PIN FOR SECONDARY BATTERY AND SECONDARY BATTERY HAVING THE SAME - A center pin for a secondary battery and a secondary battery having the same, which optimizes a void volume of the secondary battery. The center pin is inserted into an electrode assembly of the secondary battery. The center pin has a longitudinal hole and includes a sealing member to seal a portion of the hole. The sealing member can include walls disposed within the center pin, to seal the portion of the hole. The sealing member can include a second center pin, which is inserted into the hole, to seal the portion of the hole. | 01-16-2014 |
20140023908 | LITHIUM-ION SECONDARY BATTERY - The lithium-ion secondary battery | 01-23-2014 |
20140030578 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a separator for a rechargeable lithium battery including a porous substrate and an adherence porous layer on at least one side of the porous substrate, and including a first fluorovinylidene-hexafluoropropylene copolymer, a second fluorovinylidene-hexafluoropropylene copolymer, and filler particles, and a rechargeable lithium battery including the same. | 01-30-2014 |
20140038024 | COMPOSITE SEPARATOR FOR USE IN A LITHIUM ION BATTERY ELECTROCHEMICAL CELL - A composite separator and a method of making a composite separator are disclosed. The composite separator includes one or more electrospun polymer fibers and ceramic particles. And the method of making a composite separator includes electrospinning a first non-woven polymer fiber mat, applying ceramic particles over the first non-woven polymer fiber mat, and then electrospinning a second non-woven polymer fiber mat over the first non-woven polymer fiber mat and the ceramic particles. Once formed, the composite separator may be incorporated into an electrochemical battery cell of a lithium ion battery. | 02-06-2014 |
20140038025 | SEPARATOR, LITHIUM BATTERY INCLUDING THE SEPARATOR, AND METHOD OF PREPARING THE SEPARATOR - A separator for a battery having a porous base material layer and a polymer coating layer formed on at least a surface of the base material layer. The polymer coating layer includes a first fluorinated copolymer and a non-fluorinated polymer. A weight ratio of the first fluorinated copolymer to the non-fluorinated polymer is in a range of 3:1 to 1:3. | 02-06-2014 |
20140045031 | HEAT-RESISTANT POROUS FILM, SEPARATOR FOR NONAQUEOUS BATTERY, AND NONAQUEOUS BATTERY - A nonaqueous battery having a high level of safety and high-temperature storability, a heat-resistant porous film capable of serving as a separator material for separating positive and negative electrodes from each other and capable of forming the nonaqueous battery, and a separator capable of forming the nonaqueous battery are provided. | 02-13-2014 |
20140045032 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte; and an aluminum laminated outer body that stores the stacked electrode assembly and into which the nonaqueous electrolyte is poured. The positive electrode plate contains a positive electrode active material. The negative electrode plate contains a negative electrode active material. The stacked electrode assembly includes an inorganic particle layer containing a binder and inorganic particles between the positive electrode plate and the separator or between the negative electrode plate and the separator, or both. The nonaqueous electrolyte is also prepared by adding LiPF | 02-13-2014 |
20140050965 | SEPARATOR, METHOD FOR PRODUCING THE SAME AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME - A separator includes a porous substrate, a porous organic-inorganic coating layer formed on at least one surface of the porous substrate, and an organic coating layer formed on the surface of the organic-inorganic coating layer. The porous organic-inorganic coating layer includes a mixture of inorganic particles and a first binder polymer. The first binder polymer contains a copolymer including (a) a first monomer unit including either at least one amine group or at least one amide group or both in the side chain thereof and (b) a (meth)acrylate having a C | 02-20-2014 |
20140057155 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY - A separator for a rechargeable lithium battery includes a backbone polymer, an ion conductive polymer coating the backbone polymer, and an electrolyte solution immersing the backbone polymer, wherein the backbone polymer and the ion conductive polymer are different from each other. | 02-27-2014 |
20140057156 | Polymer-Ionophore Separator - An alkali-chalcogen cell, in particular a lithium-sulfur cell. In order to increase the long-term stability and lifespan of the alkali-chalcogen cell, the separator of the alkali-chalcogen cell is provided with a polymer-ionophore component, in particular a polymer-ionophore diaphragm, including a polymeric matrix material and alkali-ionophores, in particular lithium ionophores. | 02-27-2014 |
20140065463 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A separator for a rechargeable lithium battery including a tungsten-doped vanadium oxide (VO | 03-06-2014 |
20140079980 | THIN BATTERY SEPARATORS AND METHODS - In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. In accordance with at least particular certain embodiments, the present invention is related to shutdown membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. | 03-20-2014 |
20140087233 | LITHIUM SECONDARY BATTERY - The present invention relates to a lithium secondary battery. More specifically, according to embodiments of the present invention the lithium battery, which includes a cathode, an anode, and a separate membrane inserted between the cathode and the anode, is characterized in that the separator membrane is a polyolefin porous membrane which has an aramid coating layer; and the cathode includes a lithium metal oxide cathode active material which has an olivine-type iron phosphate lithium coating layer, or the anode includes a carbon anode active material which has a spinel-type lithium titanium oxide coating layer. The lithium secondary battery in accordance with embodiments of the present invention has excellent basic electric performance and improved stability. | 03-27-2014 |
20140093767 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - To realize high capacity of batteries, an object of the invention is to provide nonaqueous electrolyte secondary batteries which are unlikely to become swollen when charged to a high voltage and allowed to stand in a high temperature atmosphere. The nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a nonaqueous electrolyte, and a separator disposed between the positive electrode and the negative electrode. An inorganic particle layer is disposed between the positive electrode and the separator or between the negative electrode and the separator. The inorganic particle layer contains a polymer with a polyethylene glycol group. The polymer with a polyethylene glycol group has an average molecular weight of not less than 200. | 04-03-2014 |
20140099530 | MULTILAYER POROUS FILM, SEPARATOR FOR BATTERIES, AND BATTERY - The present invention is capable of providing a multilayer porous film which has high adhesion between a base layer and a coating layer and excellent heat resistance and exhibits excellent characteristics when used as a separator for a nonaqueous electrolyte secondary battery. A multilayer porous film which is obtained by laminating a coating layer that contains a filler and a resin binder on at least one surface of a polyolefin resin porous film that serves as a base layer. The ratio of the average particle diameter (Du) of the filler within 25% of the thickness of the coating layer from the surface of the multilayer porous film to the average particle diameter (Db) of the filler within 25% of the thickness of the coating layer from the interface with the base layer, namely, Du/Db is 1.2-10; and the average particle diameter (Du) is 0.5 μm or less. | 04-10-2014 |
20140113173 | SEPARATOR HAVING HEAT-RESISTANT INSULATING LAYER AND ELECTRIC DEVICE COMPRISING THE SAME - A separator having a heat-resistant insulating layer of the present invention includes a porous resin base layer and a heat-resistant insulating layer which is formed on one or both sides of the porous resin base layer and contains inorganic particles and a binder. The porous resin base layer contains a resin having a melting temperature of 120° C. to 200° C. The separator is configured so that the ratio of the basis weight of the heat-resistant insulating layer to the basis weight of the porous resin base layer is not less than 0.5. Accordingly, the separator having a heat-resistant insulating layer of the present invention exhibits excellent thermal shrinkage resistance while ensuring a shutdown function. | 04-24-2014 |
20140113174 | BATTERY SEPARATOR AND ITS CONSTRUCTING METHOD, AND LITHIUM-ION BATTERY - A battery separator includes: a basement layer that comprises polyolefin and/or nonwoven fabric; a composite layer that is disposed on at least one surface of the basement layer, where the composite layer comprises polymer adhesive, and boride powder and ceramic powder that are dispersed in the polymer adhesive. An embodiment of the present invention also provides a method for constructing a battery separator and a lithium-ion battery. In the battery separator provided by the embodiment of the present invention, by adding the boride powder, the battery separator may prevent electrolyte deterioration, thereby improving the battery cycle performance; by adding the ceramic powder, reliability may be enhanced for heat resistance of the battery separator and security of the battery. | 04-24-2014 |
20140120402 | SEPARATOR COMPRISING MICROCAPSULES AND ELECTROCHEMICAL DEVICE HAVING THE SAME - The present invention refers to a separator, comprising a porous substrate having multiple pores; a porous coating layer formed on at least one area selected from at least one surface of the porous substrate and the pores of the porous substrate, and comprising multiple inorganic particles and a binder polymer, the binder polymer being existed on a part or all of the surface of the inorganic particles to connect and immobilize the inorganic particles therebetween; and microcapsules dispersed in at least one area selected from the pores of the porous substrate and pores formed by vacant spaces between the inorganic particles present in the porous coating layer, and containing therein an additive for improving the performances of an electrochemical device, and an electrochemical device having the same. | 05-01-2014 |
20140127546 | SEPARATOR WITH ADDITIVE FOR IMPROVING THE COATING QUALITY AND REDUCING AGGLOMERATES IN A CERAMIC COMPOSITE - The invention relates to a separator which has a porous coating which is not electrically conductive and is composed of oxide particles which are adhesively bonded to one another and to the substrate by means of an inorganic adhesive and comprise at least one oxide selected from among Al | 05-08-2014 |
20140127547 | LITHIUM ION SECONDARY BATTERY WITHOUT INTERNAL SHORT - A lithium ion secondary battery including a compound containing at least one thiol group (—SH) in a molecule in a unit cell of the battery is provided. By including the compound containing thiol group (—SH) having good reactivity with copper or copper ions, the formation of dendrite through the reduction of copper ions present in the inner portion of the battery or produced during operating the battery at the surface of an anode may be prevented. The internal short between two electrodes due to the dendrite may be also prevented. | 05-08-2014 |
20140141312 | SEPARATOR FOR A SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - A separator for a secondary battery and a secondary battery including the same, the separator including a porous substrate; a patterned fabric layer on at least one side of the porous, the patterned fabric layer having patterns; and a polymer coating layer on the patterned fabric layer. | 05-22-2014 |
20140141313 | POSITIVE ACTIVE MATERIAL LAYER FOR RECHARGEABLE LITHIUM BATTERY, SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING AT LEAST ONE OF SAME - A positive active material layer for a rechargeable lithium battery including a positive active material and a protection film-forming material is disclosed. A separator for a rechargeable lithium battery including a substrate and a porous layer positioned at least one side of the substrate and including a protection film-forming material is also disclosed. A rechargeable lithium battery can include at least one of the positive active material layer and the separator. | 05-22-2014 |
20140141314 | POROUS MEMBRANE FOR SECONDARY BATTERIES, METHOD FOR PRODUCING SAME, AND USE OF SAME - A porous membrane for a secondary battery including non-conductive particles and a binder for a porous membrane, wherein the non-conductive particles are spherical polymer particles having a rough surface, the particles satisfy the expression 1.2≦(SB)/(SD)≦5.0 (1) (wherein SB represents an actual specific surface area of the particles and SD means a theoretical specific surface area of the particles), an arithmetic average of shape factor of the particles is 1.20 or less, and the particles include 50% by weight or more of a polyfunctional (meth)acrylic monomer unit; a method for producing the same; and an electrode, a separator and a battery having the same. | 05-22-2014 |
20140147726 | POROUS MEMBRANE FOR SECONDARY BATTERY, SEPARATOR FOR SECONDARY BATTERY, AND SECONDARY BATTERY - In a porous membrane for a secondary battery including non-conductive particles and a water-soluble polymer, as the water-soluble polymer, a copolymer including 15% to 50% by weight of an ethylenically unsaturated carboxylic acid monomer unit, 30% to 80% by weight of a (meth)acrylic acid ester monomer unit, and 0.5% to 10% by weight of a fluorine-containing (meth)acrylic acid ester monomer unit is used. | 05-29-2014 |
20140154552 | RECHARGEABLE LITHIUM BATTERY AND A METHOD OF MAKING A RECHARGEABLE LITHIUM BATTERY - Provided is a rechargeable lithium battery that includes a positive electrode including a positive active material; a negative electrode including a negative active material; a separator interposed between the positive electrode and the negative electrode; and an electrolyte solution, wherein the positive active material includes lithium metal oxide and a compound represented by the following Chemical Formula 1 and coated on a surface of the lithium metal oxide, and the separator includes a porous substrate and a coating layer including ceramic and disposed on at least one side of the porous substrate. | 06-05-2014 |
20140162109 | SECONDARY BATTERY - Provided is a very safe secondary battery that can prevent the occurrence of battery abnormalities even when the internal battery temperature increases due to, for example, overcharging. A separator | 06-12-2014 |
20140170464 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes an electrode body, a non-aqueous electrolyte and a porous heat resistance layer. The electrode body is provided with a positive electrode and a negative electrode that face each other through a separator. The porous heat resistance layer is disposed at least in one of a space between the positive electrode and the separator and a space between the negative electrode and the separator and contains an inorganic filler. A porosity of the separator is not less than 70% by volume and not more than 80% by volume. A ratio of a porosity of the porous heat resistance layer with respect to the porosity of the separator is not less than 0.3 and not more than 0.6. | 06-19-2014 |
20140170465 | PROTECTED LITHIUM ELECTRODES HAVING A POROUS ELECTROLYTE INTERLAYER AND ASSOCIATED BATTERY CELLS - Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided. | 06-19-2014 |
20140178739 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed is a positive electrode for a rechargeable lithium battery that includes a positive active material including lithium-nickel cobalt manganese composite metal oxide, wherein the positive active material has an increase rate of a specific surface area of from about 66.4% to about 77.5% after pressing relative to a specific surface area of the positive active material before pressing, and the positive electrode has an active mass density of from about 2.514 g/cc to about 3.389 g/cc. | 06-26-2014 |
20140178740 | SEPARATOR AND ELECTROCHEMICAL DEVICE HAVING THE SAME - The present invention refers to a method of preparing a separator, a separator prepared therefrom and an electrochemical device having the separator. The method of preparing a separator according to the present invention comprises providing a planar and porous substrate having multiple pores; and coating a first slurry on at least one surface of the porous substrate through a slot section to form a porous coating layer, while continuously coating a second slurry on the porous coating layer through a slide section adjacent to the slot section to form a layer for adhesion with an electrode, the first slurry comprising inorganic particles, a first binder polymer and a first solvent, and the second slurry comprising a second binder polymer and a second solvent. | 06-26-2014 |
20140178741 | LAMINATED POROUS FILM AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a laminated porous film and a non-aqueous electrolyte secondary battery. The laminated porous film is a laminated porous film in which a heat-resistant layer comprising a binder resin and a filler is laminated on one or both of the surfaces of a porous film substrate mainly comprising a polyolefin, wherein a part occupied by at least one out of the binder resin and the filler is formed in the porous film substrate so as to touch the heat-resistant layer, and the total thickness of the occupied part is not less than 1% and not more than 20% of the overall thickness of the porous film substrate. The non-aqueous electrolyte secondary battery comprises the laminated porous film according as a separator. | 06-26-2014 |
20140186678 | LITHIUM SECONDARY BATTERY CELL STRUCTURE - A lithium secondary battery that has a battery cell structure, with improved electrochemical stability between an electrode and an electrolyte. In addition, the lithium secondary battery improves ion conductivity while applying a solid electrolyte. More specifically, a lithium secondary battery comprising a separator formed by an electrolyte between the cathode and the anode, wherein a composite coated layer of lithium-lanthanum-titanate (Li | 07-03-2014 |
20140186679 | SHAPE MEMORY POLYMER MATERIAL COMPOSITIONS, METHODS AND APPLICATIONS - A shape memory polymer material composition comprises: (1) a plurality of inorganic core nanoparticles as netpoints to which is connected; (2) a switching segment that comprises a polymer network. The polymer network comprises: (1) a corona component bonded to each inorganic core nanoparticle through a first chemical linkage; (2) a canopy component bonded to each corona component through a second chemical linkage; and (3) a plurality of cross-linking components cross-linking between different canopy components through a third chemical linkage. Given various selections for the inorganic core nanoparticles, the corona component, the canopy component, the cross-linking component, the first chemical linkage, the second chemical linkage and the third chemical linkage, various performance and composition characteristics of the shape memory polymer material compositions may be readily tailored. | 07-03-2014 |
20140186680 | SEPARATOR AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME - Provided is a separator including a porous substrate having a plurality of pores, and a porous coating layer provided on at least one surface of the porous substrate and formed from a mixture of plural inorganic particles and a binder polymer, in which the binder polymer is a result of a curing reaction of an acryl-based copolymer and an isocyanate-based crosslinking agent, and the acryl-based copolymer is a copolymer including (a) a first monomer unit with a tertiary amine group, (b) a second monomer unit with at least one functional group selected from an amine group other than a tertiary amine group, an amide group, a cyano group, and an imide group, (c) a third monomer unit of (meth)acrylate with a carboxyl group, (d) a fourth monomer unit of (meth)acrylate with a hydroxyl group, and (e) a fifth monomer unit of (meth)acrylate with an alkyl group having 1 to 14 carbon atoms, and an electrochemical device comprising the same. | 07-03-2014 |
20140186681 | ELECTROCHEMICAL DEVICE WITH IMPROVED CYCLE CHARACTERISTICS - Disclosed is an electrochemical device. The electrochemical device includes: (a) a composite separator including a porous substrate, a first porous coating layer coated on one surface of the porous substrate, and a second porous coating layer coated on the other surface of the porous substrate; (b) an anode disposed to face the first porous coating layer; and (c) a cathode disposed to face the second porous coating layer. The first and second porous coating layers are each independently composed of a mixture including inorganic particles and a binder polymer. The first porous coating layer is thicker than the second porous coating layer. The electrochemical device has good thermal stability and improved cycle characteristics. | 07-03-2014 |
20140193691 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery | 07-10-2014 |
20140193692 | MULTILAYER POROUS FILM, SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a multilayer porous film that has extremely high powder fall-off resistance and superior electrolyte solution adsorptivity and heat resistance and exhibits superior properties when used as a battery separator without decreasing the high air permeability of a porous film. The multilayer porous film includes a polyolefin-based resin porous film and a coating layer containing a filler and a resin binder on at least one surface of the polyolefin-based resin porous film. The amount of particles with particle sizes of less than 0.2 μm (D | 07-10-2014 |
20140205883 | REACTIVE SEPARATOR FOR A METAL-ION BATTERY - A reactive separator is provided for a metal-ion battery. The reactive separator is made up of a reactive layer that is chemically reactive to alkali or alkaline earth metals, and has a first side and a second side. A first non-reactive layer, chemically non-reactive with alkali or alkaline earth metals, is adjacent to the reactive layer first side. A second non-reactive layer, also chemically non-reactive with alkali or alkaline earth metals, is adjacent to the reactive layer second side. More explicitly, the first and second non-reactive layers are defined as having less than 5 percent by weight (wt %) of materials able to participate in electrochemical reactions with alkali or alkaline earth metals. The reactive layer may be formed as a porous membrane embedded with reactive components, where the porous membrane is carbon or a porous polymer. Alternatively, the reactive layer is formed as a polymer gel embedded with reactive components. | 07-24-2014 |
20140212727 | Separator with improved ease of handling - Robust separator which has, on a substrate and in the voids of the substrate, which comprises fibers of an electrically nonconductive material, an electrically nonconductive coating comprising oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide selected from Al | 07-31-2014 |
20140212728 | SLURRY FOR SECONDARY BATTERIES - Slurry for secondary batteries used for manufacturing a porous membrane superior in a thermal shrinkage resistance. Said slurry for secondary batteries comprises non-conductive particles and a water-soluble polymer, wherein the water-soluble polymer is a maleimide-maleic acid copolymer including a structural unit (a) shown by the below general formula (I) and a structural unit (b) shown by the below general formula (II); | 07-31-2014 |
20140220411 | SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING THE SEPARATOR - Disclosed is a method for manufacturing a separator. The method includes (S1) preparing a porous planar substrate having a plurality of pores, (S2) preparing a slurry containing inorganic particles dispersed therein and a polymer solution including a first binder polymer and a second binder polymer in a solvent, and coating the slurry on at least one surface of the porous substrate, (S3) spraying a non-solvent incapable of dissolving the second binder polymer on the slurry, and (S4) simultaneously removing the solvent and the non-solvent by drying. According to the method, a separator with good bindability to electrodes can be manufactured in an easy manner. In addition, problems associated with the separation of inorganic particles in the course of manufacturing an electrochemical device can be avoided. | 08-07-2014 |
20140234692 | SEPARATOR FOR AN ENERGY STORE AND AN ENERGY STORE - A separator for an energy store. The separator may be used in a lithium-sulfur battery in particular. To achieve improved cycle stability, the separator has at least one first layer and at least one second layer, the at least one first layer containing a material having an affine property with respect to at least one active electrode material, and the at least one second layer containing a material having a repellent property with respect to at least one active electrode material. The at least one first layer and the at least one second layer may be situated directly adjacent to one another. Also described is an energy store including the separator. | 08-21-2014 |
20140234693 | NONAQUEOUS ELECTROLYTE BATTERY SEPARATOR AND NONAQUEOUS ELECTROLYTE BATTERY - Provided herein is a nonaqueous electrolyte battery separator capable of rendering a battery flame-retardant and suppressing a reduction in battery performance is provided. A porous front-side protective layer | 08-21-2014 |
20140242441 | INTEGRATED ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING SAME - Disclosed herein is an integrated electrode assembly including a cathode, an anode, and a separation layer disposed between the cathode and the anode. The cathode, the anode, and the separation layer are integrated with each other. The separation layer includes 3 phases including a liquid-phase component containing an ionic salt, a solid-phase component supporting the separation layer between the cathode and the anode, and a polymer matrix in which linear polymers and cross-linked polymers form a viscoelastic structure with the liquid-phase component and the solid-phase component being incorporated in the polymer matrix. The polymer matrix is coupled to each of the cathode and the anode. The liquid-phase component of the separation layer flows into the electrodes (i.e., the cathode and anode) during preparation of the integrated electrode assembly to greatly improve wetting properties of the electrodes and to increase ionic conductivity of the electrodes. | 08-28-2014 |
20140242442 | LITHIUM COMPOSITE METAL OXIDE HAVING LAYERED STRUCTURE - A layered structure lithium mixed metal oxide obtained by a method including a step of calcining a lithium mixed metal oxide raw material containing a transition metal element and a lithium element in a molar ratio of the lithium element to the transition metal element of 1 or more and 2 or less, in the presence of an inactive flux containing one or more compounds selected from the group consisting of a carbonate of M, a sulfate of M, a nitrate of M, a phosphate of M, a hydroxide of M, a molybdate of M, and a tungstate of M, wherein M represents one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. | 08-28-2014 |
20140242443 | SEPARATOR WITH HEAT-RESISTANT INSULATION LAYER - A separator with a heat-resistant insulation layer for an electric device includes a resin porous substrate and a heat-resistant insulation layer containing heat-resistant particles and a binder, the heat-resistant insulation layer being formed on at least one surface of the resin porous substrate. The heat-resistant particles contain alumina and a parameter X is 0.018 to 0.336. Parameter X is represented by X=C | 08-28-2014 |
20140248525 | SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY - A separator for a non-aqueous secondary battery includes a porous substrate and an adhesive porous layer provided on one or both sides of the porous substrate, the adhesive porous layer including a polyvinylidene-fluoride resin and a filler whose difference between a particle diameter at 90% cumulative volume and a particle diameter at 10% cumulative volume is 2 μm or less, and the adhesive porous layer satisfying Inequality (1): 0.5≦a/r≦3.0, wherein, in Inequality (1), “a” represents an average thickness (μm) of the adhesive porous layer on one of the sides of the porous substrate; and “r” represents a volume average particle diameter (μm) of the filler contained in the adhesive porous layer. | 09-04-2014 |
20140272526 | POROUS SEPARATOR FOR A LITHIUM ION BATTERY AND A METHOD OF MAKING THE SAME - A porous separator for a lithium ion battery is disclosed herein. The porous separator includes a non-woven membrane and a porous polymer coating. The porous polymer coating is formed on a surface of the non-woven membrane, or is infused in pores of the non-woven membrane, or is both formed on the surface of the non-woven membrane and infused in pores of the non-woven membrane. | 09-18-2014 |
20140272527 | SEPARATOR COMPONENTS AND SYSTEM FOR ENERGY STORAGE AND CONVERSION DEVICES - Components and systems for energy storage and conversion devices are disclosed. An exemplary system may include a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode for providing ionic transport. The system may also include a hydrophobic portion on the separator. The hydrophobic portion may comprise hydrophobic pathways formed on the surface of the separator. The system may also include a hydrophilic portion on the separator. Another exemplary system may include an absorptive glass mat separator having a hydrophobic portion and a textured PVC separator. An exemplary method may include manufacturing the separator and applying a hydrophobic portion on the separator. The method may also include applying a hydrophilic portion to the separator. | 09-18-2014 |
20140272528 | MANUFACTURING TECHNIQUES USING BINDER COATINGS IN THREE-DIMENSIONAL STACKED-CELL BATTERIES - The disclosed embodiments relate to the manufacture of a battery cell. The battery cell includes a first set of layers including a cathode with an active coating, a separator, and an anode with an active coating. The separator may include a ceramic coating and a binder coating over the ceramic coating. During manufacturing of the battery cell, the layers are stacked, and the binder coating is used to laminate the first set of layers within the first sub-cell by applying at least one of pressure and temperature to the first set of layers. | 09-18-2014 |
20140272529 | MANUFACTURING TECHNIQUES USING UNIFORM PRESSURE TO FORM THREE-DIMENSIONAL STACKED-CELL BATTERIES - The disclosed embodiments relate to the manufacture of a battery cell. The battery cell includes a first set of layers including a cathode with an active coating, a separator, and an anode with an active coating. The separator may include a ceramic coating and a binder coating over the ceramic coating. During manufacturing of the battery cell, the layers are stacked, and the binder coating is used to laminate the first set of layers within the first sub-cell by applying at least one of pressure and temperature to the first set of layers. In addition, uniform pressure is applied to the cell stack to laminate the first and second sets of layers. | 09-18-2014 |
20140272530 | SEPARATOR FOR ELECTROCHEMICAL CELL WITH OVERCHARGE PROTECTION AND METHOD OF MAKING SAME - A separator for a rechargeable electrochemical cell that has a conductive first layer and a non-conductive second layer. The non-conductive second layer and the conductive first layer are adhered to one another, wherein the separator has a higher threshold voltage than a threshold voltage of the conductive first layer alone. At a predetermined voltage, the separator becomes conductive and stops further ionic transfers. | 09-18-2014 |
20140272531 | SEPARATOR FOR ELECTROCHEMICAL CELL WITH THERMALLY INDUCED SELF-DISCHARGE INTRINSIC IN THE CONSTRUCTION - A separator for a rechargeable electrochemical cell has a conductive first layer and a non-conductive second layer. The non-conductive second layer and the conductive first layer are adhered to one another, wherein the non-conductive second layer has a melting point below a critical temperature for the rechargeable electrochemical cell and discharges the cell when subject to overheating. | 09-18-2014 |
20140272532 | SEPARATOR AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are porous substrate and a coating layer positioned on one side or both sides of the porous substrate, wherein the coating layer includes a filler (A) having an average particle diameter of about 0.3 μm to about 2 μm; and a binder (B) including an organic polymer and an inorganic particle, an organic particle, or a combination thereof, wherein an average particle diameter of each of the inorganic particle and the organic particle is about 5 nm to about 200 nm, and a rechargeable lithium battery including the separator. | 09-18-2014 |
20140272533 | MULTILAYER HYBRID BATTERY SEPARATORS FOR LITHIUM ION SECONDARY BATTERIES AND METHODS OF MAKING SAME - A multi-layered battery separator for a lithium secondary battery includes a first layer of a dry processed membrane bonded to a second layer of a wet processed membrane. The first layer may be made of a polypropylene based resin. The second layer may be made of a polyethylene based resin. The separator may have more than two layers. The separator may have a ratio of TD/MD tensile strength in the range of about 1.5-3.0. The separator may have a thickness of about 35.0 microns or less. The separator may have a puncture strength of greater than about 630 gf. The separator may have a dielectric breakdown of at least about 2000V. | 09-18-2014 |
20140272534 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The nonaqueous electrolyte secondary battery of the present invention has a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte solution. The battery further has a porous heat-resistant layer provided between the separator and at least one of the positive electrode and the negative electrode, wherein the porous heat-resistant layer includes an inorganic filler and a binder. The inorganic filler included in the porous heat-resistant layer has a particle size distribution with two peaks, which are a first peak (P1) at a relatively small particle diameter and a second peak (P2) at a relatively large particle diameter. When the particle diameter of the first peak (P1) is D1 be and the particle diameter of the second peak (P2) is D2 being, the peak particle diameter ratio D1/D2 satisfies the condition 0.2≦D1/D2≦0.7. | 09-18-2014 |
20140287294 | METHOD OF PREPARING SEPARATOR FOR LITHIUM SECONDARY BATTERY, SEPARATOR PREPARED THEREFROM, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - The present invention provides a method of preparing a separator for a lithium secondary battery, comprising: forming a porous coating layer on at least one surface of a porous substrate, the porous coating layer comprising inorganic particles; bringing polymer particles into electric charging to obtain electrically charged polymer particles; transferring the electrically charged polymer particles on the top surface the porous coating layer to form a functional coating layer; and fixing the functional coating layer with heat and pressure, a separator prepared by the method, and a lithium secondary battery comprising the separator. | 09-25-2014 |
20140287295 | SEPARATOR WITH HEAT RESISTANT INSULATION LAYER - A separator with a heat resistant insulation layer includes a porous substrate, and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing at least one kind of inorganic particles and at least one kind of a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range from 99:1 to 85:15, a BET specific surface area of the inorganic particles is in a range from 3 m | 09-25-2014 |
20140295245 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE APPARATUS - An electric storage device includes: a container; an electrode assembly contained in the container, the electrode assembly including a positive electrode having a positive electrode substrate and a positive electrode active material layer that is formed on the positive electrode substrate and contains a positive electrode active material, a negative electrode having a negative electrode substrate and a negative electrode active material layer that is formed on the negative electrode substrate and contains a negative electrode active material, and a separator interposed between the positive and negative electrodes; and an electrolyte contained in the container, wherein the separator is configured such that a stress caused at a specific compressed depth in the separator, which corresponds to 5% of the thickness of the negative electrode active material layer, is 0.5 MPa or more and 14 MPa or less. An electric storage apparatus includes a plurality of electric storage devices described above. | 10-02-2014 |
20140308563 | RECHARGEABLE LITHIUM BATTERY AND METHOD OF FABRICATING SAME - In an aspect, a rechargeable lithium battery that includes a positive electrode; negative electrode; a separator interposed between the positive electrode and the negative electrode and including a porous substrate and a coating layer formed on at least one side of the porous substrate; and an electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive is provided. | 10-16-2014 |
20140308564 | RECHARGEABLE LITHIUM BATTERY AND METHOD OF FABRICATING THE SAME - In an aspect, a rechargeable lithium battery that includes a positive electrode; negative electrode; a separator interposed between the positive electrode and the negative electrode and including a porous substrate and a coating layer formed on at least one side of the porous substrate; and an electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive is provided. | 10-16-2014 |
20140308565 | SEPARATOR AND LITHIUM BATTERY INCLUDING THE SEPARATOR - A separator including a porous base material layer and a coating layer disposed on at least one surface of the porous base material layer, wherein the coating layer includes the binder composition, and a binder film comprising the binder composition has an elongation of 10% or less measured after maintaining the binder film under a load of 50 g at 150° C. for 10 minutes, and a lithium battery including the same. | 10-16-2014 |
20140308566 | SEPARATOR FOR ELECTRIC DEVICE AND ELECTRIC DEVICE USING THE SAME - A separator for an electric device includes a porous substrate layer and first and second ceramic layers formed on the respective surfaces of the porous substrate layer and each containing ceramic particles and a binder. A specific surface area of the first ceramic layer is smaller than a specific surface area of the second ceramic layer, and the first ceramic layer is located towards a negative electrode of an electric device. | 10-16-2014 |
20140322586 | SEPARATOR FOR SECONDARY BATTERY COMPRISING DUAL POROUS COATING LAYER OF INORGANIC PARTICLES WITH DIFFERENT SURFACE CHARACTERISTICS, SECONDARY BATTERY COMPRISING THE SAME, AND METHOD OF MANUFACTURING THE SEPARATOR - The present disclosure relates to a separator for a secondary battery including a dual porous coating layer of inorganic particles with different surface characteristics, a secondary battery including the same, and a method of manufacturing the separator. According to an exemplary embodiment of the present disclosure, a separator including a porous substrate, a first porous coating layer, and a second porous coating layer is provided. According to the present disclosure, a method of manufacturing a separator including forming a first slurry, forming a second slurry, forming a first porous coating layer, and forming a second porous coating layer is provided. A separator according to the present disclosure has uniform dispersion of inorganic particles in a coating layer of the separator, and adsorbs an excess of metal ions generated in the battery when the battery is out of a normal operating temperature range, thereby ensuring safety of the battery. | 10-30-2014 |
20140329127 | Laminated Separator, Polyolefin Microporous Membrane, and Separator for Electricity Storage Device - Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less. | 11-06-2014 |
20140329128 | Laminated Separator, Polyolefin Microporous Membrane, and Separator for Electricity Storage Device - Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less. | 11-06-2014 |
20140329129 | Laminated Separator, Polyolefin Microporous Membrane, and Separator for Electricity Storage Device - Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less. | 11-06-2014 |
20140329130 | LITHIUM SECONDARY BATTERY SEPARATOR AND METHOD OF MANUFACTURING SAME - Provided is a lithium secondary battery separator including a laminate of a substrate and a porous heat-resistant polyimide film which covers at least one surface of the substrate. The porous heat-resistant polyimide film has pores which are regularly arrayed three-dimensionally and a film thickness of 5-20 μm. Penetration damage to the separator by growth of dendrite-shaped lithium is avoided, and it is also possible to meet a request which is demanded of the lithium secondary battery separator. | 11-06-2014 |
20140342214 | SEPARATOR HAVING A POLYSULFIDE BARRIER LAYER FOR LITHIUM-SULFUR CELLS - A lithium-sulfur cell includes a lithium-containing anode, a sulfur-containing cathode and a separator arranged between the lithium-containing anode and the sulfur-containing cathode. To suppress a shuttle mechanism and to prevent a loss of active material, the separator includes a base layer and a polysulfide barrier layer. The polysulfide barrier layer is formed on the cathode side of the separator. | 11-20-2014 |
20140349168 | METHOD FOR PRODUCING POLYOLEFIN POROUS FILM, AND LAMINATED POROUS FILM - Provided is a method for reproducibly and efficiently producing a polyolefin porous film having a porous structure suitable for a separator for a battery without requiring a special apparatus. The method according to the present invention is a method for producing a polyolefin porous film, the method including conveying a raw material polyolefin sheet having pores into a furnace of a tenter type stretching machine, and tenter-stretching the sheet in a plurality of stretching regions in the furnace to produce a polyolefin porous film, wherein the plurality of stretching regions include at least two stretching regions having different film widening speeds, and the temperature of a stretching region having a high film widening speed is lower than that of a stretching region having a low film widening speed in the at least two stretching regions, and a stretching region having the highest film widening speed is situated in the front stage with respect to a stretching region having the lowest film widening speed. | 11-27-2014 |
20140363725 | ELECTRODE ASSEMBLY AND POLYMER SECONDARY BATTERY CELL INCLUDING THE SAME - An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed and has same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, and an auxiliary unit disposed on at least one among an uppermost part or a lowermost part of the cell stack part. The one kind of radical unit of (a) has a four-layered structure in which a first electrode, a first separator, a second electrode and a second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked, and each of the at least two kinds of radical units are stacked by ones in the predetermined order to form the four-layered structure or the repeating structure. | 12-11-2014 |
20140370360 | SECONDARY BATTERY - A secondary battery includes a first electrode, a second electrode, an ion transmission member in contact with the first electrode and the second electrode, and a hole transmission member in contact with the first electrode and the second electrode. Suitably, the first electrode contains a composite oxide. The composite oxide contains alkali metal or alkali earth metal. The composite oxide contains a p-type composite oxide as a p-type semiconductor. | 12-18-2014 |
20140370361 | RECHARGEABLE LITHIUM BATTERY - Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte solution including a lithium salt and a non-aqueous organic solvent; and a separator between the positive and the negative electrodes, the separator including a porous substrate and a coating layer positioned on at least one side of the porous substrate. The negative active material includes a Si-based material; the non-aqueous organic solvent includes cyclic carbonate including ethylene carbonate, propylene carbonate, or combinations thereof, the cyclic carbonate being included in an amount of about 20 volume % to about 60 volume % based on the total amount of the non-aqueous organic solvent; and the coating layer includes a fluorine-based polymer, an inorganic compound, or combinations thereof. The rechargeable lithium battery has improved cycle-life and high temperature storage characteristics. | 12-18-2014 |
20140370362 | ELECTRODE ASSEMBLY AND POLYMER SECONDARY BATTERY CELL INCLUDING THE SAME - An electrode assembly includes a cell stack part having a structure of steps obtained by stacking at least two groups of radical units having different sizes or having different geometric shapes according to the size or the geometric shapes. The radical unit has a combined structure into one body by alternately same number of electrodes and separators, and each step of the cell stack part has a structure in which one kind of radical units is disposed once or repeatedly, or a structure in which at least two kinds of radical units are disposed. The one kind of radical unit has a four-layered structure of first electrode, first separator, second electrode and second separator sequentially stacked or a repeating structure of the four-layered structure. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. | 12-18-2014 |
20140377628 | MAT MADE OF COMBINATION OF COARSE GLASS FIBERS AND MICRO GLASS FIBERS USED AS A SEPARATOR IN A LEAD-ACID BATTERY - Embodiments of the invention provide battery separators including reinforcing fibers and methods for making the same. According to one embodiment, a battery separator may include a plurality of first fibers blended with a plurality of second fibers. The plurality of first fibers may include fibers having a fiber diameter of between about 0.05 and 5 microns and the plurality of second fibers may include fibers having a fiber diameter of between about 8 and 20 microns. The first fibers may allow the battery separator to absorb an electrolyte of the battery while the second fibers reinforce the battery separator. An acid resistant binder may bond the first and second fibers. In some embodiments, the second fibers may be arranged with respect to the first fibers so as to form a plurality of fiber strands that are disposed on one or more surfaces of the mat composed of the first fibers. | 12-25-2014 |
20140377629 | ENERGY STORAGE DEVICE AND ENERGY STORAGE MODULE - In the state where a positive electrode and a separator are held in a case, the value of the ratio of the tensile elongation in a first direction of the separator to the tensile elongation in the first direction of a positive electrode substrate is from 4 to 68. In the same state, the value of the ratio of the tensile elongation in a second direction of the separator to the tensile elongation in the second direction of the positive electrode substrate is from 4 to 68. The value of the ratio of the thickness of a heat-resistant layer to the thickness of the positive electrode substrate is from 0.25 to 0.70. The proportion by mass of heat-resistant particles contained in the heat-resistant layer is from 30 to 99% by mass of the heat-resistant layer. | 12-25-2014 |
20140377630 | LAMINATED POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the present invention is to provide a laminated porous film excellent in handling ability. A laminated porous film having a layer containing a polymer other than a polyolefin laminated on at least one surface of a polyolefin porous film, wherein the uplift quantity of a side perpendicular to the machine direction, when allowed to stand still for 1 hour under an environment of a temperature of 23° C. and a humidity of 50%, is 15 mm or less. | 12-25-2014 |
20140377631 | ELECTRODE ASSEMBLY AND RADICAL UNIT FOR THE SAME - According to the present disclosure, there is provided an electrode assembly comprising (a) a structure in which one kind of radical unit is repeatedly disposed, the one kind of radical unit having a same number of electrodes and separators which are alternately disposed and integrally combined, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order, the at least two kinds of radical units each having a same number of electrodes and separators which are alternately disposed and integrally combined. | 12-25-2014 |
20150010804 | CERAMIC/POLYMER MATRIX FOR ELECTRODE PROTECTION IN ELECTROCHEMICAL CELLS, INCLUDING RECHARGEABLE LITHIUM BATTERIES - Articles and methods for forming ceramic/polymer composite structures for electrode protection in electrochemical cells, including rechargeable lithium batteries, are presented. | 01-08-2015 |
20150017510 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery of the invention has a power generating element with a single-cell layer which comprises a positive electrode including a positive electrode active material layer formed on a surface of a positive electrode collector, a negative electrode including a negative electrode active material layer formed on a surface of a negative electrode collector and a separator disposed between the positive electrode the negative electrode and containing a non-aqueous electrolyte, in which a value RA (=Rzjis (2)/Rzjis(1)) for the ratio between the surface roughness (Rzjis(1)) of the surface of the negative electrode active material layer on the side in contact with the separator and the surface roughness (Rzjis(2)) of the surface of the separator on the side in contact with the negative electrode active material layer is 0.15 to 0.85. | 01-15-2015 |
20150024248 | Non-flammable quasi-solid electrolyte-separator layer product for lithium battery applications - A separator-electrolyte layer product for use in a lithium battery, comprising: (a) a porous thin-film separator selected from a porous polymer film, a porous mat, fabric, or paper made of polymer or glass fibers, or a combination thereof, wherein the separator has a thickness less than 500 μm; and (b) a non-flammable quasi-solid electrolyte containing a lithium salt dissolved in a liquid solvent up to a concentration no less than 3 M; wherein the porous thin-film separator is coated with the quasi-solid electrolyte so that the layer product exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of the liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point. | 01-22-2015 |
20150024249 | RECHARGEABLE LITHIUM BATTERY AND METHOD OF PREPARING THE SAME - A rechargeable lithium battery includes a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, the separator including a porous substrate and a coating layer on at least one side of the porous substrate, the coating layer including a fluorine-based polymer, a ceramic, or a combination thereof; and an electrolyte. The negative electrode includes a current collector, a negative active material layer on the current collector, the negative active material layer including a polyvinylidene fluoride (PVdF) latex particle and an aqueous binder, and a polymer layer on the negative active material layer, the polymer layer including a PVdF latex particle. | 01-22-2015 |
20150024250 | BASE FOR LITHIUM ION SECONDARY BATTERY SEPARATORS, METHOD FOR PRODUCING BASE FOR LITHIUM ION SECONDARY BATTERY SEPARATORS, AND LITHIUM ION SECONDARY BATTERY SEPARATOR - A base material for a lithium ion secondary battery separator provided by the present invention comprises a polyethylene terephthalate fiber, in which an average fiber diameter of the polyethylene terephthalate fiber is 9.0 μm or less, a specific X-ray diffraction intensity derived from the polyethylene terephthalate fiber is 300 cps/(g/m | 01-22-2015 |
20150030905 | BATTERY SEPARATOR, AND METHOD FOR PRODUCING SAME - A battery separator includes a porous membrane A including a polyolefin resin, and a porous membrane B laminated thereon including a fluororesin and inorganic particles or cross-linked polymer particles, | 01-29-2015 |
20150030906 | AQUEOUS POLYVINYLIDENE FLUORIDE COMPOSITION - The invention relates to a separator for non-aqueous-type electrochemical device that has been coated with an aqueous fluoropolymer coating. The fluoropolymer is preferably polyvinylidene fluoride (PVDF), and more preferably a copolymer of polyvinylidene fluoride. The fluoropolymer coating provides a porous coating on porous substrate separator used in non-aqueous-type electrochemical devices, such as batteries and electric double layer capacitors. The fluoropolymer coating improves the thermal resistance and mechanical integrity, and lowers the interfacial electrical impedance of the porous separator. The fluoropolymer composition optionally contains powdery particles that are held together on the separator by the fluoropolymer binder. In one embodiment, the starting fluoropolymer dispersion is free of fluorinated surfactant. In another embodiment, one or more fugitive adhesion promoters are added. | 01-29-2015 |
20150037652 | SEPARATOR HAVING IMPROVED THERMAL RESISTANCE, AND ELECTROCHEMICAL DEVICE HAVING SAME - Disclosed is a separator containing a porous polymer substrate and an inorganic particle layer formed on at least one surface of the porous polymer substrate, and the separator has increased insolubility for an electrolyte and enhanced dimensional stability at high temperatures, therefore, short circuit between a cathode and an anode may be suppressed even when an electrochemical device is overheated, and high temperature cycle characteristics of the electrochemical device are enhanced. In addition, discharge characteristics are improved due to an ion conductance enhancement, since the impregnation of the separator for the electrolyte increases. Therefore, the separator according to the present invention is suited for electrochemical devices that require heat resistance, in particular, for lithium secondary batteries for electric vehicles, since, while the separator according to the present invention has excellent heat resistance, an electrochemical device that includes the separator gives equal performance in electrochemical properties when compared to existing separators. | 02-05-2015 |
20150050541 | LITHIUM SECONDARY BATTERY - This invention provides a lithium secondary battery which degrades less upon high-rate charge/discharge cycles (thus durable). The lithium secondary battery comprises positive electrode | 02-19-2015 |
20150050542 | BATTERY SEPARATOR AND METHOD FOR PRODUCING SAME - A battery separator includes a porous membrane A and a porous membrane B laminated on the porous membrane A, the porous membrane A including a polyolefin resin, the porous membrane B including a polyamide-imide resin and inorganic particles or cross-linked polymer particles, wherein the particles are contained in an amount of 80% by weight to 97% by weight of the porous membrane B and have an average diameter that is not less than 1.5 times and less than 50 times the average pore size of the porous membrane A. The battery separator has excellent heat resistance and processability (electrolyte permeability, low curling property) and is characterized in that the air resistance increase due to lamination of a heat resistant resin is extremely small. | 02-19-2015 |
20150050543 | Li/Metal Battery with Microstructured Solid Electrolyte - In one embodiment, an electrochemical cell includes an anode including form of lithium, a cathode spaced apart from the anode, and a microstructured composite separator positioned between the anode and the cathode, the microstructured composite separator including a first layer adjacent the anode, a second layer positioned between the first layer and the cathode, and a plurality of solid electrolyte components extending from the first layer toward the second layer. | 02-19-2015 |
20150056489 | LAMINATED BATTERY CELL AND METHODS FOR CREATING THE SAME - Electrodes with a multilayer or monolayer composite separator are described. The multilayer composite separator comprises multiple individual composite separator layers. Each individual composite separator layer comprises inorganic particulate material(s) and organic polymer(s) with different inorganic particulate material/polymer weight ratios. The multilayer composite separator layer is constructed in a way such that the composite separator layer adjacent to the electrode active material contains a higher weight percentage of the inorganic particulate material and lower weight percentage of the organic polymer than the composite separator layer outermost from the electrode current collector. Laminated cells comprising a positive electrode, a negative electrode, a laminated multilayer or monolayer composite separator layer are described, wherein at least one of the electrodes has a multilayer or monolayer composite separator disposed onto the surface of the electrode. Methods of making such laminated cells are also described. | 02-26-2015 |
20150056490 | MULTI-LAYERED POROUS FILM, ELECTRICAL CELL SEPARATOR, AND ELECTRICAL CELL - A laminated porous membrane includes a polyolefin porous membrane A, and a porous layer B provided on at least one surface of the polyolefin porous membrane A, the porous layer B containing a filler (a) and a binder resin (b) as essential components, the filler (a) having a true specific gravity of less than 2.0 g/cm | 02-26-2015 |
20150056491 | ORGANIC/INORGANIC COMPOSITE POROUS SEPARATOR AND PREPARATION METHOD THEREOF AND ELECTROCHEMICAL DEVICE - The present disclosure provides an organic/inorganic composite porous separator and a preparation method thereof and an electrochemical device. The organic/inorganic composite porous separator comprises: a porous substrate; and an organic/inorganic composite porous coating coated on at least one surface of the porous substrate; the organic/inorganic composite porous coating comprises inorganic particles, an adhesive and organic particles with at least two swelling degrees, and the organic particles are swollen by a plasticizer. A preparation method of an organic/inorganic composite porous separator is used for preparing the previous organic/inorganic composite porous separator. An electrochemical device comprises the organic/inorganic composite porous separator. The separator can form an excellent interface, thereby reducing the risk of organic particles blocking micro pores, helping to improve the permeability of the separator, and improving the conductivity of the separator. | 02-26-2015 |
20150064538 | BINDERS, ELECTROLYTES AND SEPARATOR FILMS FOR ENERGY STORAGE AND COLLECTION DEVICES USING DISCRETE CARBON NANOTUBES - In various embodiments an improved binder composition, electrolyte composition and a separator film composition using discrete carbon nanotubes. Their methods of production and utility for energy storage and collection devices, like batteries, capacitors and photovoltaics, is described. The binder, electrolyte, or separator composition can further comprise polymers. The discrete carbon nanotubes further comprise at least a portion of the tubes being open ended and/or functionalized. The utility of the binder, electrolyte or separator film composition includes improved capacity, power or durability in energy storage and collection devices. The utility of the electrolyte and or separator film compositions includes improved ion transport in energy storage and collection devices. | 03-05-2015 |
20150072212 | SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY UTILIZING SAME, AND MANUFACTURING METHODS OF SAME - The separator of a nonaqueous electrolyte secondary battery is characterized by having a composite nanofiber fiber which is a nanosize fiber that contains two or more kinds of aqueous resins whose melting points are different. | 03-12-2015 |
20150072213 | POROUS MEMBRANE FOR SECONDARY BATTERIES, METHOD FOR PRODUCING SAME, ELECTRODE FOR SECONDARY BATTERIES, SEPARATOR FOR SECONDARY BATTERIES, AND SECONDARY BATTERY - A porous membrane for a secondary battery, including non-conductive particles and a binder for a porous membrane, wherein the non-conductive particle is a polymer particle having a core-shell structure, the non-conductive particle has a core portion having a glass transition point of 30° C. to 90° C., the non-conductive particle has a shell portion having a glass transition point higher than that of the core portion by 10° C. or higher, a thickness of the shell portion is 0.01% to 3.0% of a number average particle diameter of the non-conductive particles, and a number average particle diameter (A) of the non-conductive particle and a number average particle diameter (B) of the binder for a porous membrane satisfy (A)>(B). | 03-12-2015 |
20150072214 | USE FOR BINDER-RESIN COMPOSITION, RESIN COMPOSITION FOR TREATING SURFACE OF SUBSTRATE FOR SEPARATOR FOR NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY, SEPARATOR FOR NONAQUEOUS-ELECTROLYTE BATTERY, METHOD FOR MANUFACTURING SAID SEPARATOR, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - The present invention provides a binder-resin composition (a) for binding filler particles to a surface of a separator substrate for a nonaqueous-electrolyte secondary battery. The use of this composition makes it possible to give a separator excellent in heat resistance. The binder-resin composition (a) is a resin composition including a water-soluble polymer (A) having a metal carboxylate group, and a water-soluble polymer (B) having a hydroxyl group, a carboxyl group or a sulfo group. However, the composition does not include a copolymer C that includes a structural unit (1) derived from vinyl alcohol and a structural unit (2) derived from a metal salt of acrylic acid. | 03-12-2015 |
20150079450 | POROUS MEMBRANES FILLED WITH NANO-PARTICLES AND RELATED METHODS - A membrane includes a porous membrane or layer made of a polymeric material having a plurality of surface treated (or coated) particles (or ceramic particles) having an average particle size of less than about 1 micron dispersed therein. The polymeric material may be selected from the group consisting of polyolefins, polyamides, polyesters, co-polymers thereof, and combinations thereof. The particles may be selected from the group consisting of boehmite (AlOOH), SiO | 03-19-2015 |
20150086836 | RESIN COMPOSITION, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a resin composition comprising the following resin (a) and filler particles. The use of this composition makes it possible to obtain a separator having excellent heat resistance. Resin (a): a copolymer comprising a structural unit represented by a formula (1) and a structural unit represented by a formula (2), | 03-26-2015 |
20150086837 | CERAMIC/POLYMER MATRIX FOR ELECTRODE PROTECTION IN ELECTROCHEMICAL CELLS, INCLUDING RECHARGEABLE LITHIUM BATTERIES - Articles and methods for forming ceramic/polymer composite structures for electrode protection in electrochemical cells, including rechargeable lithium batteries, are presented. | 03-26-2015 |
20150093625 | SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A separator for a non-aqueous electrolyte secondary battery includes a first layer containing thermoplastic fibers, and a second layer formed on at least one side of the first layer and containing cellulose fibers as a main component. The first layer includes a mixed portion in which the thermoplastic fibers and the cellulose fibers are mixed, the mixed portion being disposed at an interface with the second layer. A total weight per area of the cellulose fibers contained in the second layer and the mixed portion is more than 5 g/m | 04-02-2015 |
20150093626 | LITHIUM ION BATTERY SEPARATORS AND ELECTRODES - A lithium ion battery separator includes a porous film of a polymeric chelating agent. The polymeric chelating agent includes a poly(undecylenyl-macrocycle), where the macrocycle is a chelating agent. A positive electrode includes a structure and a coating formed on a surface of the structure. The structure includes a lithium transition metal based active material, a binder, and a conductive carbon; and the coating includes a poly(undecylenyl-macrocycle), where the macrocycle is a chelating agent. The separator and/or positive electrode are suitable for use in a lithium ion battery. | 04-02-2015 |
20150099155 | BATTERY ELECTRODE PLATE REINFORCEMENT MAT HAVING IMPROVED WETTABILITY CHARACTERISTICS AND METHODS OF USE THEREFOR - According to one embodiment, a nonwoven fiber mat for reinforcing a plate or electrode of a lead-acid battery includes a plurality of glass fibers and an acid resistant binder that couples the plurality of glass fibers together. The nonwoven fiber mat also includes a wetting component that is applied to the glass fibers and/or nonwoven fiber mat to increase the wettability of the nonwoven fiber mat such that the nonwoven fiber mat exhibits an average water wick height of at least 0.5 cm after exposure to water for 10 minutes conducted according to method ISO8787. The wetting component may be dissolvable in an acid solution of the lead-acid battery such that a significant portion of the nonwoven fiber mat is lost due to dissolving of the wetting component. | 04-09-2015 |
20150099156 | USE FOR RESIN, RESIN COMPOSITION, SEPARATOR FOR NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING SAID SEPARATOR, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - The present invention provides a resin (a) as a binder for binding filler particles to a surface of a separator substrate for a nonaqueous-electrolyte secondary battery. The use of this resin (a) makes it possible to give a separator excellent in heat resistance. The resin (a) is a copolymer including a structural unit (1) derived from vinyl alcohol, and a structural unit (2) derived from a metal salt of acrylic acid. | 04-09-2015 |
20150099157 | PASTING PAPER MADE OF GLASS FIBER NONWOVEN COMPRISING CARBON GRAPHITE - Embodiments of the invention provide an absorptive glass mat (AGM) battery having a positive electrode, a negative electrode, and a nonwoven fiber separator positioned between the electrodes. The separator includes a mixture of glass fibers having diameters between about 8 μm to 13 μm and glass fibers having diameters of at least 6 μm and a silane sizing. An acid resistant binder bonds the glass fibers to form the separator. A wetting component is applied to the separator to increase the wettability such that the separator has or exhibits an average water wick height of at least 1.0 cm after exposure to water for 10 minutes. A conductive material is disposed on at least one surface of the separator such that when the separator is positioned adjacent an electrode, the conductive material contacts the electrode. An electrical resistance of less than 100,000 ohms per square enables electron flow about mat. | 04-09-2015 |
20150099158 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery having an electrode body formed by stacking a positive electrode, a separator and a negative electrode and a non-aqueous electrolyte. The separator has a separator substrate made and a first porous heat resistance layer formed on a surface of the substrate on a side facing the positive electrode. A surface of the negative electrode on a side facing the separator is formed by a second porous heat resistance layer. The first and second porous heat resistance layers satisfy: (1) an average thickness of the first porous heat resistance layer is greater than that of the second porous heat resistance layer; (2) an average particle diameter of an inorganic filler contained in the first porous heat resistance layer is greater than that of an inorganic filler contained in the second porous heat resistance layer. | 04-09-2015 |
20150111086 | Polymer-Bound Ceramic Particle Battery Separator Coating - Porous, electrically insulating, and electrochemically resistant surface coatings that strengthen and protect separators and that improve the operational safety of electrochemical devices using such separators, the use of ultraviolet (UV) or electron beam (EB) curable binders to secure an electrically insulating, porous, ceramic particle coating on separators, and methods of producing polymer-bound ceramic particle separator coatings, separators and electrochemical devices by UV or EB curing slurries of reactive liquid resins and ceramic particles. | 04-23-2015 |
20150118539 | RESIN COMPOSITION, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a resin composition comprising the following resin (a) and filler particles. The use of this composition makes it possible to obtain a separator having excellent heat resistance. Resin (a): a polymer which comprises a structural unit represented by a formula (1), and which has a weight average molecular weight of 200000 to 500000, provided that the polymer does not comprise a structural unit represented by a formula (2), | 04-30-2015 |
20150118540 | SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A separator according to the present disclosure is a separator for a non-aqueous electrolyte secondary battery that includes a porous layer that contains cellulose fibers and resin particles. The ratio of the amount of the resin particles to the total amount of the cellulose fibers and the resin particles increases with decreasing distance from one surface of the porous layer. | 04-30-2015 |
20150125733 | High-Rate Overcharge-Protection Separators for Rechargeable Lithium-Ion Batteries and the Method of Making the Same - This invention relates to low-cost, electroactive-polymer incorporated fine-fiber composite membranes for use as overcharge and/or overdischarge protection separators in non-aqueous electrochemical cells and the methods for making such membranes. | 05-07-2015 |
20150125734 | POLYOLEFIN RESIN POROUS FILM - The purpose of the present invention is to provide a polyolefin resin porous film, which is resistant to wrinkling in a transporting step in a high-temperature environment due to a high shrinkage stress, has superior coating suitability, maintains pore interconnectivity, and thus has superior air permeability. The polyolefin resin porous film of the present invention has a 1% modulus in the flow direction at 90° C. of 4.5 MPa or more and an air permeability of 800 sec/100 ml or less. | 05-07-2015 |
20150125735 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery includes: a negative electrode including a negative active material; a positive electrode; a separator interposed between the negative electrode and the positive electrode; and an electrolyte solution including an additive, wherein the negative active material includes a Si-based material, the Si-based material is included in an amount from about 1 to about 70 wt % based on total amount of the negative active material, and the additive includes fluoroethylene carbonate and a compound represented by the following Chemical Formula 1. | 05-07-2015 |
20150132632 | HIGH-STRENGTH ELECTROSPUN MICROFIBER NON-WOVEN WEB FOR A SEPARATOR OF A SECONDARY BATTERY, A SEPARATOR COMPRISING THE SAME AND A METHOD FOR MANUFACTURING THE SAME - The present disclosure provides a method for manufacturing an electrospun microfiber non-woven web with high strength for a lithium secondary battery, a non-woven web manufactured therefrom, and a separator comprising the non-woven web. More specifically, the present disclosure provides a microfiber non-woven web manufactured by bringing a solution of engineering plastic resin with high heat-resistance into electrospinning, the manufacture thereof, and a separator comprising the web. | 05-14-2015 |
20150140402 | SEPARATOR, LITHIUM BATTERY INCLUDING THE SAME, METHOD OF MANUFACTURING THE SEPARATOR, AND METHOD OF MANUFACTURING THE LITHIUM BATTERY - A separator includes an organic-inorganic hybrid coating layer on at least one surface of a porous base and a pattern coating layer on a surface of the organic-inorganic hybrid coating layer. The pattern coating layer includes patterns having an average diameter of 0.1 mm or less that are regularly spaced apart from each other. | 05-21-2015 |
20150140403 | SEPARATOR FOR LITHIUM BATTERY, LITHIUM BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE LITHIUM BATTERY - A separator for a lithium battery includes a porous coating layer disposed on a surface of a porous base, and a first adhesive layer including a plurality of dots disposed at intervals at a surface of the porous coating layer, the plurality of dots of the first adhesive layer penetrating through the porous coating layer to be on the surface of the porous base. | 05-21-2015 |
20150147627 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery includes a negative electrode including a negative active material layer and a separator including a substrate and a coating layer formed on at least one of the substrate. The coating layer includes a fluorine-based polymer. The at least one coating layer faces the negative active material layer. The negative active material layer includes a negative active material, a water-soluble polymer and a fluorine-based polymer particulate. | 05-28-2015 |
20150303429 | Second Battery and Separator Used Therein - An object of the present invention is to provide a secondary battery that is able to inhibit the growth of a dendrite that can generate from an electrode comprising alkali metal and a separator used therein. | 10-22-2015 |
20150303430 | Use of a Silica-Based Powder - The invention relates to the use of a ceramic-oxide powder for the production of a separator element for a lithium-ion battery, said ceramic-oxide powder having the following chemical composition, in percentages on the basis of the weight of the ceramic oxides, making up a total of 100%: SiO2>85%, Al2O3<10%, ZrO2<10%, other ceramic oxides<5%; said ceramic-oxide powder having a specific surface area of less than 40 m2/g and more than 5 m2/g; said oxide powder having a sphericity index of more than 0.8. | 10-22-2015 |
20150318570 | POLYMER ELECTROLYTE, LITHIUM SECONDARY BATTERY USING SAME, AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY - Provided are a polymer electrolyte, a lithium secondary battery using the same, and a manufacturing method thereof, in which a gel polymer electrolyte is formed from a monomer for forming a gel polymer by a rapid polymerization reaction, when using a porous nanofiber web as an electrolyte matrix, and injecting an organic electrolytic solution formed by mixing the gel polymer forming monomer and a polymerization initiator, to induce an addition polymerization reaction, but the porous nanofiber web maintains a web-like shape. The polymer electrolyte includes: a separator made of a porous nanofiber web having a plurality of nanofibers; and a gel polymer portion impregnated in the porous nanofiber web. the gel polymer portion is formed by impregnating an electrolytic solution containing a non-aqueous organic solvent, a lithium salt solute, a gel polymer forming monomer, and a polymerization initiator in the porous nanofiber web and polymerizing the gel polymer forming monomer. | 11-05-2015 |
20150325831 | POLYIMIDE WEB SEPARATOR FOR USE IN AN ELECTROCHEMICAL CELL - The present invention is directed to a separator for an electrochemical cell comprising a web, the web comprising fibers of a polyimide and a protective region wherein the protective region impedes electrochemical reduction of the polyimide inside the electrochemical cell. The present invention is further directed to a multi-layer article and electrochemical cell containing the separator. | 11-12-2015 |
20150333307 | HIGH CAPACITY SOLID STATE COMPOSITE CATHODE, SOLID STATE COMPOSITE SEPARATOR, SOLID-STATE RECHARGEABLE LITHIUM BATTERY AND METHODS OF MAKING SAME - A high capacity solid state composite cathode contains an active cathode material dispersed in an amorphous inorganic ionically conductive metal oxide, such as lithium lanthanum zirconium oxide and/or lithium carbon lanthanum zirconium oxide. A solid state composite separator contains an electronically insulating inorganic powder dispersed in an amorphous, inorganic, ionically conductive metal oxide. Methods for preparing the composite cathode and composite separator are provided. | 11-19-2015 |
20150333308 | SEPARATOR FOR SECONDARY CELL - Provided are a secondary battery separator having good heat durability, high adhesion property with the electrode active material layer formed on the current collector, and good anti-blocking property, and a secondary battery having such a secondary battery separator. The secondary battery separator of the present invention includes an organic separator layer, a heat-durable layer formed adjacent to at least one surface of the organic separator layer, and an adhesive layer formed on the heat-durable layer, wherein the heat-durable layer contains non-conductive particles and a binder, and the adhesive layer contains a particulate polymer having a glass transition temperature (Tg) of 10 to 100° C. | 11-19-2015 |
20150340678 | LITHIUM ION SECONDARY BATTERY, SEPARATOR THEREOF, AND METHOD FOR PRODUCING EACH OF SAME - This separator is provided at least at one surface thereof with a heat-resistant layer containing inorganic oxide particles and a binder, and the inorganic oxide particles have a component containing gallium in the range of 5 to 200 weight ppm in an aluminum oxide. This lithium ion secondary battery has: an electrode body including a positive electrode plate and a negative electrode plate laminated by interposing the separator therebetween; and a non-aqueous electrolytic solution impregnated in the electrode body. A lithium ion secondary battery using the separator having the heat-resistant layer is therefore less likely to cause a rise in resistance even in use under high-rate conditions. | 11-26-2015 |
20150340679 | SEPARATOR, ELECTRODE ELEMENT, ELECTRIC ENERGY STORAGE DEVICE AND METHOD FOR PRODUCING SEPARATOR - The present invention provides a separator drastically reducing the short-circuit between electrodes and having satisfactory ionic conductivity on the basis of the use of inorganic materials. The separator | 11-26-2015 |
20150343736 | COMPOSITE SHEET AND CARGO CONTAINER COMPRISING SAME - This invention is directed to a non-rigid composite sheet comprising in order (i) a first component having an areal weight of from 88 to 678 gsm comprising a first fabric of filamentary yarns having a tenacity of at least 11 g/dtex and a UV and weather impervious first polymeric layer. (ii) a second component having an areal weight of from 120 to 430 gsm comprising a flame resistant paper and (iii) a third component having an areal weight of from 88 to 678 gsm comprising a second fabric of filamentary yarns having a tenacity of at least 11 g/dtex and an impact and scratch resistant second polymeric layer, the second fabric of the third component being adjacent to the paper of the second component. | 12-03-2015 |
20150349308 | Lithium Secondary Battery - Provided is a lithium secondary battery in which a separator is not provided. The lithium secondary battery includes a cathode in which a cathode active material layer is formed on a cathode current collector; an anode in which an anode active material layer is formed on an anode current collector; and an inorganic layer positioned between the cathode and the anode facing each other and containing inorganic particles and a binder. The inorganic layer is in a state in which the inorganic layer is bound to both of the cathode active material layer and the anode active material layer. | 12-03-2015 |
20150357126 | Diatomaceous Ionic Gel Separation Layer for Energy Storage Devices and Printable Composition Therefor - Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a capacitor. A representative liquid or gel separator comprises a plurality of particles selected from the group consisting of: diatoms, diatomaceous frustules, diatomaceous fragments, diatomaceous remains, and mixtures thereof; a first, ionic liquid electrolyte; and a polymer or, in the printable composition, a polymer or a polymeric precursor. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included. | 12-10-2015 |
20150357618 | LITHIUM-ION CELL - A leak test defect is suppressed which is generated by short circuit between a positive electrode and a negative electrode with a lithium metal present in the vicinity of an end portion of a separator, and an initial charge/discharge efficiency of a lithium-ion cell and cycle characteristics thereof are improved. In the lithium-ion cell, the separator includes a polyolefin as a primary material and a uniform lithium metal film formed on a surface portion thereof which is located at the negative electrode plate side and which does not face the negative electrode active material layer, and the lithium metal film is electrically insulated from the positive electrode collector. | 12-10-2015 |
20150360409 | FLEXIBLE POROUS FILM - This invention provides a method for fabricating a flexible porous film. One application of the film is for fabricating a flexible lithium-ion battery. The method comprises depositing at least one electrospun layer on a flexible substrate sheet by electrospinning. The solution used in electrospinning comprises polyvinylidene fluoride (PVDF) and poly(vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) copolymer dispersed in a solvent such that the solution has a polymer viscosity between 300 cP to 1500 cP. A preferred setting of electrospinning process parameters includes a voltage between 20 kV and 50 kV, a feed rate between 3 ml/h and 12 ml/h, and a spinning height between 100 mm and 150 mm. Preferably, PVDF and PVdF-HFP has a weight ratio between 1:1 and 5:1. The solvent may comprise dimethylformamide (DMF) and acetone in a weight ratio between 1:2 and 8:2. The weight of the copolymer is preferable to be 5% to 25% of a total weight of the copolymer and the solvent. | 12-17-2015 |
20150372271 | ELECTROSPINNING FOR INTEGRATED SEPARATOR FOR LITHIUM-ION BATTERIES - Embodiments of the present invention relate generally to lithium-ion batteries, and more specifically, to batteries having integrated separators and methods of fabricating such batteries. In one embodiment, a lithium-ion battery having an electrode structure is provided. The lithium-ion battery comprises an anode stack, a cathode stack, and a porous electrospun polymer separator comprising a nano-fiber backbone structure. The anode stack comprises an anodic current collector and an anode structure formed over a first surface of the anodic current collector. The cathode stack comprises a cathodic current collector and a cathode structure formed over a first surface of the cathodic current collector. The porous electrospun polymer separator is positioned between the anode structure and the cathode structure. | 12-24-2015 |
20150372273 | HYBRID NONWOVEN SEPARATOR HAVING INVERTED STRUCTURE - A hybrid nonwoven separator having an inverted structure includes a nanofiber layer; and a substrate layer composed of a nonwoven fabric provided on both surfaces of the nanofiber layer to form an outermost layer. Because this separator is configured such that the substrate layer having a comparatively low coefficient of friction is disposed as the outermost layer thereof, structural defects generable in the course of manufacturing a separator can be prevented, thermal deformation of the nanofiber layer of the separator can be blocked, and also closure of pores of the nanofiber layer can be prevented thanks to pre-filtering, thus remarkably extending the lifespan of the separator. | 12-24-2015 |
20150372274 | SEPARATOR COATED WITH POLYMER AND CONDUCTIVE SALT AND ELECTROCHEMICAL DEVICE USING THE SAME - The present invention provides method for manufacturing a coated separator for use in an electrochemical device, comprising the steps of: (i) providing a separator having two surfaces; (ii) applying a coating composition [composition (C)] on at least one surface of the separator, the composition (C) comprising a polymer [polymer (P)] and at least one electrolyte salt [salt (E)] of formula (a), A | 12-24-2015 |
20150372278 | HEAT-RESISTANT MICROPOROUS FILM AND BATTERY SEPARATOR - A heat-resistant microporous film and a battery separator are provided and including a substrate comprising a porous film; and a heat-resistant layer formed on at least one surface of the substrate, the heat-resistant layer containing a heat-resistant resin and heat-resistant particles, wherein at least one protrusion is formed on a surface of the heat-resistant layer, and a total number of protrusions not exceeding 60 per surface area of 0.0418 mm | 12-24-2015 |
20150380702 | METHOD FOR MANUFACTURING SEPARATOR, SEPARATOR MANUFACTURED BY THE METHOD AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE INCLUDING THE SEPARATOR - A method for manufacturing a separator includes (S1) preparing a porous substrate having pores, (S2) coating at least one surface of the porous substrate with a first solvent, (S3) coating the first solvent with a slurry containing inorganic particles dispersed therein and formed by dissolving a binder polymer in a second solvent, (S4) drying the first and second solvents simultaneously to form a porous organic-inorganic composite layer on the porous substrate. Since the phenomenon that the pores of the porous substrate are closing by the binder polymer is minimized, it is possible to prevent the resistance of the separator from increasing due to the formation of the porous organic-inorganic composite layer. | 12-31-2015 |
20150380708 | MULTILAYER POROUS FILM, SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A multilayer porous film having, on at least one surface of a polyolefinic resin porous film, a coating layer that contains an alumina and a resin binder, wherein, when the alumina is heated at a heating rate of 10° C./min in thermogravimetric analysis, the mass of the alumina at 250° C. W | 12-31-2015 |
20160013465 | SLURRY FOR LITHIUM ION SECONDARY BATTERY POROUS FILM, PRODUCTION METHOD THEREFOR, SEPARATOR FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY | 01-14-2016 |
20160028061 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery that includes an electrode smoothing layer formed from a composite material including an active material and an organic substance and provided on the surface of at least one of a positive electrode and a negative electrode, and a lithium-ion permeable ceramic separator layer formed from a composite material including insulating inorganic microparticles and an organic substance provided so as to be opposed to at least one of the positive electrode and negative electrode with the electrode smoothing layer interposed therebetween. | 01-28-2016 |
20160028065 | ELECTRODE ASSEMBLY - The present disclosure provides an electrode assembly comprising a plurality of unit cells, each unit cell having a full-cell or a bi-cell structure comprising a cathode, an anode, and a first separator interposed between the cathode and the anode, and the plurality of unit cells being stacked by surrounding each unit cell with a second separator, wherein the second separator has an average pore diameter (d | 01-28-2016 |
20160028127 | LITHIUM SECONDARY BATTERY - The present invention relates to a lithium secondary battery including a cathode, an anode, a separator disposed between the cathode and the anode, and a non-aqueous electrolyte. An ionomer is included in at least one element selected from the group consisting of the cathode, the anode, the separator, and the non-aqueous electrolyte. | 01-28-2016 |
20160043371 | MULTILAYER POROUS FILM, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, SLURRY, AND COATING LIQUID - The viscosity stability in forming a slurry of one or metal components selected from water-insoluble metal oxides and metal salts is improved, and using the resultant slurry, a coating layer is formed on a polyolefinic resin porous film to give a multilayer porous film having excellent surface smoothness. The multilayer porous film has, as layered on at least one surface of a polyolefinic resin porous film, a coating layer that contains one or more metal components selected from water-insoluble metal oxides and metal salts, and a resin binder, wherein the content of water-soluble calcium contained in the metal components is 3 ppm by mass or less. | 02-11-2016 |
20160056437 | INTEGRAL BI-LAYER SEPARATOR-ELECTRODE CONSTRUCTION FOR LITHIUM-ION BATTERIES - A porous bi-layer separator is composed of a first separator layer with a contacting array of non-conducting particles overlaid with a second separator layer of a microporous polymer layer, fabricated on the electrode surface of the anode of a lithium-ion battery to form an integral electrode-separator construction. Exemplary bi-layer separators may be fabricated by deposition of solvent-containing slurries of separator particles followed by solvent evaporation to produce the particle layer with subsequent application of polymer solutions followed by controlled evaporation of solvent to produce the microporous polymer layer. The elevated temperature performance of lithium-ion battery cells incorporating such integral electrode-bi-layer separators was demonstrated to exceed the performance of similar cells using commercial and experimental single layer polymer separators. | 02-25-2016 |
20160056461 | POSITIVE ELECTRODE-ACTIVE SUBSTANCE FOR SODIUM SECONDARY CELL, POSITIVE ELECTRODE FOR SODIUM SECONDARY CELL, AND SODIUM SECONDARY CELL - A positive electrode-active material is provided for use in a positive electrode for a sodium secondary cell and a sodium secondary cell. Also provided is a positive electrode for a sodium secondary cell and a sodium secondary cell having a high energy density. The positive electrode-active material for a sodium secondary cell includes a composite metal oxide, which has an α-NaFeO | 02-25-2016 |
20160064712 | USE OF A CERAMIC SEPARATOR IN LITHIUM-ION BATTERIES COMPRISING AN ELECTROLYTE COMPRISING IONIC LIQUIDS - The invention relates to a separator filled with an electrolyte composition, the separator having a ceramic surface and the electrolyte composition comprising an ionic liquid. The filling with the electrolyte composition can be effected for example by utilizing the separator in a battery, for example a lithium-ion battery, which has been filled with an appropriate electrolyte composition. | 03-03-2016 |
20160072110 | METHOD FOR PRODUCING POROUS POLYIMIDE FILM, POROUS POLYIMIDE FILM AND SEPARATOR USING SAME - A method for producing a porous polyimide film comprises: forming a first un-burned composite film wherein the first film is formed on a substrate using a first varnish that contains (A1) a polyamide acid or a polyimide and (B1) fine particles at a volume ratio (A1):(B1) of from 19:81 to 45:65; forming a second un-burned composite film wherein the second film is formed on the first film using a second varnish that contains (A2) a polyamide acid or a polyimide and (B2) fine particles at a volume ratio (A2):(B2) of from 20:80 to 50:50 and has a lower fine particle content ratio than the first varnish; burning wherein an un-burned composite film composed of the first film and the second film is burned, thereby obtaining a polyimide-fine particle composite film; and a fine particle removal step wherein the fine particles are removed from the polyimide-fine particle composite film. | 03-10-2016 |
20160072111 | SEPARATOR FOR SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A separator for secondary batteries is disclosed. The separator includes a separator main body and a coating layer disposed on the separator main body and including a first particle having a first melting point and a second particle having a second melting point that is higher than the first melting point. | 03-10-2016 |
20160079582 | STRUCTURE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SAME STRUCTURE - An object of the present invention is to provide a structure for a non-aqueous electrolyte secondary battery that can be manufactured without going through a complicated process such as passing through a poor solvent. The structure for a non-aqueous electrolyte secondary battery of the present invention comprises a positive electrode, a separator, and a negative electrode, the structure comprising an intermediate layer formed between the positive electrode and the separator and/or between the negative electrode and the separator and including vinylidene fluoride polymer particles constituting 60 to 100 parts by mass per 100 parts by mass of raw materials that constitute the intermediate layer. | 03-17-2016 |
20160093858 | SEPARATOR AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME - A separator according to the embodiment includes a porous base material having a thermoplastic resin. The porous base material has a heat-resistant porous layer on at least one surface thereof. The heat-resistant porous layer contains inorganic particles, a resin, and sulfur. A lithium ion secondary battery according to the embodiment, includes: the separator interposed between a positive electrode and a negative electrode; and an electrolyte solution. The heat-resistant porous layer is disposed between the positive electrode and the porous base material. Sulfur is distributed unevenly in the heat-resistant porous layer so as to exist in larger amount near a surface thereof opposite to the porous base material. | 03-31-2016 |
20160093860 | ENERGY STORAGE DEVICE AND METHOD OF PRODUCING ENERGY STORAGE DEVICE - An energy storage device includes a positive electrode provided with a positive composite layer containing a positive active material, a negative electrode provided with a negative composite layer containing a negative active material, and a separator partitioning between the positive electrode and the negative electrode, wherein the separator includes a substrate uniaxially drawn into a sheet shape and a coating layer coating at least one of surfaces of the substrate, and the coating layer has an anisotropic structure with orientation in a direction different from a drawing direction of the substrate. | 03-31-2016 |
20160104877 | ELECTRODE WITH POROUS PROTECTIVE FILM , NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE WITH POROUS PROTECTIVE FILM - An electrode with a porous protective film includes an electrode in which an active material layer is disposed on a collector and a porous protective film which is disposed on a surface of the active material layer and which contains fine particles and a binder. The thickness of the porous protective film ranges from about 0.1 μm to about 200 μm. A nonaqueous electrolyte secondary battery includes a negative electrode in which a negative electrode active material layer is disposed on a negative electrode collector, a positive electrode, a nonaqueous electrolyte, a separator, and a porous protective film which is disposed on at least one of a surface of the negative electrode active material layer or a surface of the positive electrode active material layer and which contains fine particles and a binder. The thickness of the porous protective film ranges from about 0.1 μm to about 200 μm. | 04-14-2016 |
20160104893 | COMPOSITION FOR ELECTRICITY STORAGE DEVICES, SLURRY FOR ELECTRICITY STORAGE DEVICES, ELECTRODE FOR ELECTRICITY STORAGE DEVICES, SEPARATOR FOR ELECTRICITY STORAGE DEVICES, AND ELECTRICITY STORAGE DEVICE - An electrical storage device composition can produce an electrode and a separator that exhibit excellent blocking resistance, and can effectively prevent displacement (i.e., achieves moderate blocking) when stacking an electrode and a separator. The electrical storage device composition includes a binder, an anti-blocking agent, and a liquid medium, the content (M1 parts by mass) of the binder and the content (M2 parts by mass) of the anti-blocking agent in the electrical storage device composition satisfying the relationship “104-14-2016 | |
20160104918 | GEL POLYMER ELECTROLYTE AND LITHIUM ION BATTERIES EMPLOYING THE GEL POLYMER ELECTROLYTE - The invention relates to a composition for preparing a gel polymer electrolyte, comprising: (1) a prepolymer; (2) a lithium salt; (3) an organic solvent; (4) a cross-linking agent; (5) an initiator; (6) optionally a monomer; and (7) optionally an additive; wherein the prepolymer comprises polyamides, polyimides and their combination. The invention also relates to a gel polymer electrolyte obtained by polymerization, especially in-situ polymerization of the composition and lithium-ion batteries employing the gelpolymer electrolyte, and a method of preparing the ge polymer electrolyte. | 04-14-2016 |
20160111701 | Separator and galvanic cell providing robust separation of anode and cathode - A separator having a first polymer diaphragm and a second polymer diaphragm and a layer between the first polymer diaphragm and the second polymer diaphragm including particles featuring low elasticity, the first polymer diaphragm and the second polymer diaphragm being interconnected, which may be periodically, by first support elements. In addition, a galvanic cell and a battery having such a separator are provided. | 04-21-2016 |
20160111756 | INTRINSIC OVERCHARGE PROTECTION FOR BATTERY CELL - The specification discloses a battery cell having an intrinsic overcharge protection, a battery made with the battery cell, and a method for manufacturing the battery cell. The battery cell includes, in the following order, a positive electrode, at least one polymer film that is electrically conducting and has an ion conducting electrolyte distributed therein, a P-doped and electrically semi-conducting and ion conducting film, an N-doped and electrically semi-conducting and ion conducting film, and a negative electrode. | 04-21-2016 |
20160126522 | BATTERY SEPARATORS, BATTERIES AND RELATED METHODS - New, improved or optimized battery separators, components, batteries, industrial batteries, inverter batteries, batteries for heavy or light industrial applications, forklift batteries, float charged batteries, inverters, accumulators, systems, methods, profiles, additives, compositions, composites, mixes, coatings, and/or related methods of water retention, water loss prevention, improved charge acceptance, production, use, and/or combinations thereof are provided or disclosed. More particularly, the present invention is directed to one or more improved battery separators having various improvements that may result in decreased water loss for a battery in which such a separator is incorporated, enhanced charge acceptance, or combinations thereof. Additionally, the present invention relates to one or more improved battery separators having various improvements with regard to shape, and/or physical profile, and/or chemical(s), additives, mixes, coatings, and/or the like used to make such battery separators (such as oil(s), and/or chemical additive(s) or agents used to coat, finish or improve such battery separators (such as surfactant(s))). The improved battery separators of the instant invention are particularly useful in or with industrial batteries, such as inverter batteries, batteries for heavy or light duty industrial applications, and so forth. | 05-05-2016 |
20160141574 | METHOD OF MANUFACTURING SEPARATOR FOR ELECTROCHEMICAL DEVICE AND SEPARATOR FOR ELECTROCHEMICAL DEVICE MANUFACTURED THEREBY - A method of manufacturing a separator for an electrochemical device according to an exemplary embodiment of the present disclosure includes extruding a resin composition including polyolefin and a diluent, stretching the extruded resin composition to obtain a polyolefin film, extracting the diluent from the obtained polyolefin film to obtain a porous polyolefin film, coating a slurry for forming a porous coating layer on at least one surface of the porous polyolefin film, and heat setting the porous polyolefin film coated with the slurry to obtain a composite separator with a porous coating layer. | 05-19-2016 |
20160141575 | POROUS FILM COMPOSITION FOR LITHIUM ION SECONDARY BATTERIES, SEPARATOR FOR LITHIUM ION SECONDARY BATTERIES, ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY - A porous membrane composition for a lithium ion secondary battery, including a first particulate polymer, wherein the first particulate polymer has a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion, the core portion is formed from a polymer having a swelling degree in an electrolytic solution of 5 times or more and 30 times or less, and the shell portion is formed from a polymer having a swelling degree in the electrolytic solution of 1 time or more and 4 times or less. | 05-19-2016 |
20160141576 | Separator For Rechargeable Lithium Battery and Rechargeable Lithium Battery Including Same - A separator for a rechargeable lithium battery includes a substrate, an organic layer positioned on at least one side of the substrate and including an organic material and an inorganic layer positioned on at least one side of the substrate and including an inorganic material, wherein the organic material includes two or more kinds of organic particles having different particle sizes from each other. | 05-19-2016 |
20160141578 | COMPOSITE SEPARATOR EQUIPPED IN BATTERY CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a composite separator for a battery cell and a method for manufacturing the same. In particular, the composite separator equipped in a battery cell includes a non-woven separator comprising a high heat resistant polymer fiber that comprises a thermal deformation material on a high heat resistant polymer material. Accordingly, thermal contraction of the separator can be prevented in the high temperature condition which occurs when the battery cell is overcharged, and change of the shape of the separator can be prevented. | 05-19-2016 |
20160141579 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A separator for a rechargeable lithium battery includes a substrate; an organic layer on at least one side of the substrate and including an organic material; and an inorganic layer on at least one side of the substrate and including an inorganic material, where the organic material includes two or more organic particles having respective melting points that are different from each other. A rechargeable lithium battery includes the separator. | 05-19-2016 |
20160141580 | ALKALI-ION CONDUCTIVE SEPARATOR ASSEMBLY FOR RECHARGEABLE ELECTROCHEMICAL CELLS - Disclosed is an alkali-ion conducting separator assembly comprising a porous membrane (A) and an alkali-ion conducting film (B) placed on one major surface of the porous membrane (A), wherein the alkali-ion conducting film (B) comprises an inorganic material of the general formula (I): (L | 05-19-2016 |
20160141581 | ADHESIVE FOR LITHIUM ION SECONDARY BATTERIES, SEPARATOR FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY - An adhesive for a lithium ion secondary battery, for bonding members for constituting a lithium ion secondary battery, the adhesive including a particulate polymer, wherein the particulate polymer has a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion, the core portion is formed from a polymer having a swelling degree in an electrolytic solution of 5 times or more and 30 times or less, and the shell portion is formed from a polymer having a swelling degree in an electrolytic solution of more than 1 time and 4 times or less. | 05-19-2016 |
20160141582 | LAYERED-DOUBLE-HYDROXIDE-CONTAINING COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME - Provided is a layered-double-hydroxide-(LDH) containing composite material including a porous substrate and a high density LDH-containing functional layer on and/or in the porous substrate. The LDH-containing composite material of the present invention includes the porous substrate and the functional layer formed on and/or in the porous substrate. The functional layer contains a layered double hydroxide represented by the general formula M | 05-19-2016 |
20160141625 | COATING AGENT COMPOSITION FOR BATTERY ELECTRODES OR SEPARATOR - A coating agent composition for battery electrode or separator, comprises a vinyl alcohol copolymer having a structural unit represented by the general formula (1), and an aqueous emulsion of a synthetic resin obtained by polymerizing a copolymerizable monomer having an acrylic monomer as a main component, or an aqueous emulsion of a styrene thermoplastic elastomer. | 05-19-2016 |
20160149184 | SEPARATOR FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - A separator includes an inorganic coating layer including an inorganic oxide filler and a binder having a core-shell particle structure mixed therein and coated on one surface or both surfaces of the separator. A nonaqueous lithium secondary battery includes: a positive electrode; a negative electrode on the positive electrode; and the separator between the positive electrode and the negative electrode. | 05-26-2016 |
20160149185 | SEPARATOR FOR ELECTROCHEMICAL DEVICE - Disclosed is a separator for an electrochemical device including a porous polymer film, and a porous coating layer including at least one type of particles of inorganic particles and organic particles and binder polymer, the porous coating layer formed on one surface or both surfaces of the porous polymer film, wherein the porous polymer film has a structure in which multiple fibrils arranged parallel to the surface of the film are stacked in layers, and a diameter of the fibril disposed at the side of one surface of the film where the porous coating layer is formed is smaller than a diameter of the fibril disposed at a central part in a thickness-wise direction of the film, and an electrochemical device comprising the same. | 05-26-2016 |
20160149186 | SEPARATOR HAVING HIGH HEAT RESISTANCE, MANUFACTURING METHOD THEREOF AND SECONDARY BATTERY INCLUDING THE SEPARATOR - Provided are a separator having high heat resistance, a manufacturing method thereof and a secondary battery including the separator, which provides excellent dispersibility and reduced thermal shrinkage. The separator includes separator includes a porous base layer, and a coating layer formed on at least one surface of the base layer, wherein the coating layer includes inorganic particles and a binder, and the binder includes one selected from the group consisting of polyacrylic acid (PAA), polyacrylate or a mixture of polyacrylic acid (PAA) and polyacrylate, having a molecular weight of 100,000 to 1,000,000, as a first binder. | 05-26-2016 |
20160149187 | SEPARATOR HAVING HIGH HEAT RESISTANCE, MANUFACTURING METHOD THEREOF AND SECONDARY BATTERY INCLUDING THE SAME - Provided are a separator having high heat resistance, a manufacturing method thereof and a secondary battery including the separator. The separator includes a porous base layer, and a coating layer formed on at least one surface of the base layer. Here, the coating layer includes 5 wt % to 25 wt % of polyvinyl alcohol (PVA) or derivatives thereof as a first binder and 75 wt % to 95 wt % of polyacrylic acid (PAA) or derivatives thereof as a second binder. | 05-26-2016 |
20160149188 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A separator for a rechargeable lithium battery includes a substrate; and a coating layer positioned on at least one side of the substrate, wherein a thickness ratio of the coating layer relative to the total thickness of the substrate and the coating layer ranges from about 5% to about 50%, and a loading level of the coating layer ranges from about 1.4 g/m | 05-26-2016 |
20160149189 | SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A separator for a rechargeable lithium battery includes: a substrate; and a coating layer on at least one side of the substrate, the coating layer including an acrylic-based copolymer obtained from polymerization of a (meth)acrylate salt and (meth)acrylonitrile, and a polyvinyl alcohol-based compound. A rechargeable lithium battery including the separator is also provided. | 05-26-2016 |
20160149190 | SEPARATOR FOR RECHARGEABLE BATTERY AND RECHARGEABLE BATTERY INCLUDING THE SAME - A separator for a rechargeable battery includes a substrate and a coating layer on at least one surface of the substrate, wherein the coating layer includes a binder including an acrylic resin, the binder including the acrylic resin includes a carboxyl group-containing acrylic monomer and an acrylic acid derivative monomer, and the carboxyl group-containing acrylic monomer and the acrylic acid derivative monomer are present in a mole ratio of about 20:80 to about 80:20. The binder for a rechargeable battery has high heat resistance and strong adherence, and improves the cycling characteristics of the battery. | 05-26-2016 |
20160160392 | FLUOROPOLYMER FIBRE - The present invention pertains to a process for manufacturing one or more fluoropolymer fibres, said process comprising the following steps: (i) providing a liquid composition [composition (C1)] comprising: —at least one fluoropolymer comprising at least one hydroxyl end group [polymer (F | 06-09-2016 |
20160164059 | COMPOSITE SEPARATOR FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY USING THE COMPOSITE SEPARATOR - A composite separator and a lithium secondary battery including the composite separator, and the composite separator includes a separator; a first coating layer disposed on a surface of the separator and including a (meth)acrylic polymer and/or (meth)acrylic modified polyester resin; and a second coating layer disposed on another surface of the separator and including a vinylidene fluoride-based polymer. | 06-09-2016 |
20160164101 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A positive electrode for non-aqueous electrolyte secondary battery suppresses a decrease in discharge capacity under a high output condition while minimizing an increase in battery temperature in an overcharged state of the battery. The positive electrode includes: a positive electrode current collector; and a positive electrode active material layer that is formed on a surface of the positive electrode current collector, contains a positive electrode active material and a conductive aid, and has a BET specific surface area of from 1 to 3 m | 06-09-2016 |
20160172707 | NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME | 06-16-2016 |
20160190535 | BINDER FOR RECHARGEABLE BATTERY, SEPARATOR FOR RECHARGEABLE BATTERY INCLUDING SAME, AND RECHARGEABLE BATTERY INCLUDING SAME - A binder for a rechargeable battery includes an IPN-type acrylic-based resin including a hard segment having a glass transition temperature ranging from greater than or equal to about 50° C. and less than equal to about 200° C. and a soft segment having a glass transition temperature in a range of greater than or equal to about −100° C. and less than or equal to about 30° C. | 06-30-2016 |
20160190536 | COMPOSITION FOR HEAT-RESISTANT POROUS LAYER, SEPARATOR, ELECTROCHEMICAL BATTERY, AND METHOD FOR FABRICATING THE SAME - A heat resistant porous layer composition for a separator for an electrochemical battery includes a compound represented by Formula 1, a polyvinylidene fluoride (PVdF)-based polymer, the PVdF-based polymer including one or more of a PVdF-based homopolymer or a PVdF-hexafluoropropylene-based copolymer in which a unit originating from hexafluoropropylene is present in an amount of 15 wt % or less based on the total weight of the PVdF-hexafluoropropylene-based copolymer, the PVdF-hexafluoropropylene-based copolymer having a weight average molecular weight of 600,000 g/mol or more, an initiator; and a solvent, | 06-30-2016 |
20160190537 | COMPOSITION FOR HEAT-RESISTANT POROUS LAYER, SEPARATOR, ELECTROCHEMICAL BATTERY, AND METHOD FOR FABRICATING THE SAME - A heat resistant porous layer composition for a separator of an electrochemical battery includes a compound represented by Formula 1, an initiator, and a solvent, | 06-30-2016 |
20160190538 | CONDUCTIVE AND LIQUID-RETAINING STRUCTURE - A lithium-sulfur secondary battery includes a positive electrode, a conductive and liquid-retaining structure, and a positive electrode. The conductive and liquid-retaining structure has a thickness of 5 to 100 μm, an areal weight of 10 to 120 g/m | 06-30-2016 |
20160190656 | INSTANTANEOUSLY WETTABLE POLYMER FIBER SHEET - A polymer fiber sheet exhibits high porosity and good tensile properties in both “wet” and “dry” states. A fiber modifying agent is incorporated into a polymer extrusion and fiber formation process to produce a highly porous polymer fiber sheet that is instantaneously wettable by an aqueous medium. The fiber modifying agent functions as either one or both (1) a plasticizer that reduces the polymer extrudate melt viscosity and allows the formation of fine fibers during processing and (2) a surface modifying agent that promotes the instantaneous and sustainable wettability of individual polymer fibers and a porous fiber sheet formed from them. The polymer fiber sheet maintains its wettability even after repeated washing and drying cycles. The resultant fiber sheet can be densified and embossed to provide a desired thickness and porosity, while at the same time longitudinal ribs with desired pattern can also be formed on the fiber sheet. | 06-30-2016 |
20160197380 | Lithium Cell Having an Alkaline-Earth Metal Carboxylate Separator | 07-07-2016 |
20160204405 | SOLID COMPOSITE FLUOROPOLYMER SEPARATOR | 07-14-2016 |
20160204406 | SEPARATOR FOR ELECTROCHEMICAL DEVICE | 07-14-2016 |
20160204407 | SECONDARY BATTERY SEPARATOR AND SECONDARY BATTERY | 07-14-2016 |
20160204476 | PROTECTIVE FILM, SEPARATOR AND SECONDARY BATTERY USING THE SAME | 07-14-2016 |
20160254573 | WATER LOSS SEPARATORS USED WITH LEAD ACID BATTERIES, SYSTEMS FOR IMPROVED WATER LOSS PERFORMANCE, AND METHODS OF MANUFACTURE AND USE THEREOF | 09-01-2016 |
20160380241 | SECONDARY BATTERY AND FABRICATING METHOD THEREOF - A secondary battery including a pouch having recessed portions inwardly recessed at at least one of opposite sides of the pouch, an electrode assembly including first electrode plates, second electrode plates and separators, the separators being disposed between the first electrode plates and second electrode plates, the electrode assembly being inside the pouch, and a lead tab coupled to the electrode assembly and exposed to the outside of the pouch. The separators protrude from the first electrode plates or the second electrode plates by different protruding lengths at different regions corresponding to the recessed portions of the pouch in a thickness direction of the electrode assembly. | 12-29-2016 |
20160380307 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery ( | 12-29-2016 |
20180026302 | HIGH-PERFORMANCE CERAMIC-POLYMER SEPARATORS FOR LITHIUM BATTERIES | 01-25-2018 |
20190148692 | DIRECT COATED SEPARATORS AND FORMATION PROCESSES | 05-16-2019 |
20190148698 | COMPOSITE SEPARATOR, METHOD OF PREPARING THE SAME, AND SECONDARY BATTERY INCLUDING THE SAME | 05-16-2019 |
20190148699 | NON-AQUEOUS SECONDARY BATTERY | 05-16-2019 |
20220140441 | SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME - The present disclosure relates to a separator for a lithium secondary battery, and a lithium secondary battery including same, the separator including: a porous substrate, and a heat-resistant layer on at least one surface of the porous substrate, wherein the heat-resistant layer includes a first coating layer including alumina, and a second coating layer including magnesium hydroxide, and the first coating layer and the second coating layer are consecutively disposed in a stacked form on the porous substrate. | 05-05-2022 |