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With insulating separator, spacer or retainer means

Subclass of:

429 - Chemistry: electrical current producing apparatus, product, and process

429122000 - CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS

429209000 - Electrode

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DocumentTitleDate
20110177395FIBER ASSEMBLY, COMPOSITE OF ELECTRO CONDUCTIVE SUBSTRATE AND FIBER ASSEMBLY, AND PRODUCTION METHODS THEREOF - The present invention relates to a fiber assembly obtained by electrifying a resin in a melted state by application of voltage between a supply-side electrode and a collection-side electrode so as to extend the resin into an ultrafine composite fiber by electrospinning, and accumulating the ultrafine composite fiber, wherein the ultrafine composite fiber includes at least two polymeric components and the ultrafine composite fiber includes at least one type of composite fiber selected from a sea-island structure composite fiber and a core-sheath structure composite fiber as viewed in fiber cross section, at least one selected from an island component and a core component has a volume specific resistance of 1007-21-2011
20080268344Pouch type secondary battery and fabrication method thereof - A pouch type secondary battery, in which a bent state of a cathode tap and an anode tap is maintained by eliminating a restoration phenomenon caused by an elastic force of the insulating tape when the cathode tap and the anode tap are bent by forming bending grooves on cathode and anode insulating tapes, includes: an electrode assembly which includes a cathode electrode plate where a cathode tap is connected, a anode electrode plate where an anode tap is connected, and a separator interposed between the cathode electrode plate and the anode electrode plate; a pouch containing the electrode assembly therein such that the cathode tap and the anode tap are exposed to the outside; a cathode insulation tape forming a first bending groove on at least one side portion and wrapped around the cathode tap so as to insulate a region where the cathode tap is in contact Ii with the pouch; and an anode insulation tape forming a second bending groove on at least one side portion and wrapped around the anode tap so as to insulate a region where the anode tap is in contact with the pouch.10-30-2008
20100104945SECONDARY BATTERY AND METHOD FOR MANUFACTURING SECONDARY BATTERY - In a secondary battery, a current collector plate (04-29-2010
20100129720POLYOLEFIN MICROPOROUS MEMBRANE - Provided are a polyolefin microporous membrane having a thickness of from 1 to 100 μm, a pore diameter of from 0.01 to 1 μm, and protrusions having a height of from 0.5 to 30 μm formed by embossing on at least one of the surfaces of the membrane; a production method of the membrane; and a separator for battery made of the membrane.05-27-2010
20110003209SEPARATOR FOR BATTERY, METHOD FOR MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY - The separator for a battery according to the present invention is a separator for a battery including an insulator layer containing a fibrous material having a heat resistant temperature of equal to or higher than 150° C., insulating inorganic fine particles and a binder, or a separator for a battery including a porous layer formed of a thermal melting resin and an insulator layer containing insulating inorganic fine particles and a binder, wherein water content per unit volume is equal to or smaller than 1 mg/cm01-06-2011
20120225358HEAT-RESISTANT AND HIGH-TENACITY ULTRAFINE FIBROUS SEPARATION LAYER, METHOD FOR MANUFACTURING SAME, AND SECONDARY CELL USING SAME - Provided is an ultrafine fibrous porous separator with heat resistance and high-strength and a manufacturing method thereof, which enables mass-production of a heat-resistant and high-strength ultrafine fibrous separator by using an air-electrospinning (AES) method, and to a secondary battery using the same. The method of manufacturing a heat-resistant and high-strength ultrafine fibrous porous separator includes the steps of: air-electrospinning a mixed solution of 50 to 70 wt % of a heat-resistant, polymer material and 30 to 50 wt % of a swelling polymer material, to thereby form a porous web of a heat-resistant ultrafine fiber in which the heat-resistant polymer material and the swelling polymer material are consolidated in an ultrafine fibrous form; performing drying to control a solvent and moisture that remain on the surface of the porous web; and performing thermal compression on the dried porous web at a temperature of between 170° C. and 210° C. so as to obtain the separator.09-06-2012
20110020709POROUS FILM AND SECONDARY BATTERY ELECTRODE - The present invention is intended for providing a porous film having excellent film uniformity, and is capable to contribute for improving cyclic and rate properties, which is provided on a surface of electrode used for a secondary battery and the like.01-27-2011
20130164628IONICALLY 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.06-27-2013
20100086858SECONDARY BATTERY - An electrode assembly for a secondary battery comprising an adiabatic layer attached to the negative electrode layer is disclosed. The electrode assembly comprises a positive electrode layer having a positive electrode collector, a positive electrode coating, and a non-coated area on the positive electrode collector. The negative electrode layer has a negative electrode collector, a negative electrode coating, and a non-coated area on the negative electrode collector. A separator insulates the positive and negative electrode layers. Positive and negative electrode tabs are attached to the non-coated areas of the positive and negative electrode collectors. The negative electrode layer has an adiabatic layer attached to the surface of a non-coated area of the negative electrode collector that is opposite the surface to which the negative electrode tab is attached. This construction improves battery stability and prevents short circuits caused either by heat generated during overcharging or by an internal short circuit.04-08-2010
20120237832SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - Disclosed is a separator for a non-aqueous electrolyte secondary battery, the separator including a biaxially-oriented polyolefin porous film including extended-chain crystals and folded-chain crystals, wherein the extended-chain crystals and the folded-chain crystals form a shish-kebab structure. The average distance between the extended-chain crystals adjacent to each other is 1.5 μm or more and less than 11 μm, and the average distance between the folded-chain crystals adjacent to each other is 0.3 μm or more and less than 0.9 μm. A heat resistant porous film may be laminated on the polyolefin porous film. The heat resistant porous film includes a resin having heat resistance or a melting point higher than a melting point of the polyolefin porous film.09-20-2012
20090233177NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - One width end of an electrode of a nonaqueous electrolyte secondary battery is provided with an exposed portion. A reinforcing element for reinforcing the exposed portion is provided between adjacent parts of the exposed portion when seen in the longitudinal cross section of the battery.09-17-2009
20120270110COMPOSITE BATTERY SEPARATOR - A microporous silica-filled polyolefin separator (10-25-2012
20110008679NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - A nonaqueous electrolyte secondary battery includes an electrode group 01-13-2011
20100173205ELECTRODE GROUP FOR USE IN A LITHIUM ION BATTERY - An electrode group is configured for use in a lithium ion battery. The electrode group includes an anode plate and a cathode plate wound with a separator interposed therebetween. At least one metal oxide layer is disposed between the anode plate and the cathode plate. The metal oxide layer is provided at two length edges of the anode plate and/or the cathode plate, corresponding to the cutting edge of the cathode current collector where the cut burr formed in cutting process. Even though the cut burrs can pierce through the separator, the cut burrs still cannot contact the anode film. Any internal circuit short, caused by contact between the aluminum foil and the anode film, may therefore be avoided and, therefore, the performance of the lithium ion battery is remarkably improved.07-08-2010
20090197180SPACERS BETWEEN TABS OF ELECTRODE PLATES IN AN ELECTROCHEMICAL CELL FOR AN IMPLANTABLE MEDICAL DEVICE - A battery (or cell) in an implantable medical device is presented. The cell includes a first electrode element with a first tab extending therefrom and a second electrode element with a second tab extending therefrom. A spacer is coupled to the first and second tabs.08-06-2009
20100255381All -electron battery having area-enhanced electrodes - Improved energy storage is provided by exploiting two physical effects in combination. The first effect can be referred to as the All-Electron Battery (AEB) effect, and relates to the use of inclusions embedded in a dielectric structure between two electrodes of a capacitor. Electrons can tunnel through the dielectric between the electrodes and the inclusions, thereby increasing the charge storage density relative to a conventional capacitor. The second effect can be referred to as an area enhancement effect, and relates to the use of micro-structuring or nano-structuring on one or both of the electrodes to provide an enhanced interface area relative to the electrode geometrical area. Area enhancement is advantageous for reducing the self-discharge rate of the device.10-07-2010
20110287324SURFACE MODIFIED GLASS FIBERS - A composition including glass fibers with a surface atomic concentration of oxygen in sp3 bonds with silicon of at least about 34% wherein the fibers are formed into a battery separator.11-24-2011
20110287323Electrode and Insulator Structure for Battery and Method of Manufacture - A battery core is made from a strip of insulating material folded longitudinally to form parallel panels. In one embodiment there are four panels and in another five panels. A positive electrode strip has an exposed foil center strip and positive electrode material along both edges. The positive electrode is folded around one fold of the insulator with the strip of foil exposed at the fold. A negative electrode strip has an exposed center strip and negative electrode material along both edges. The negative electrode is folded around a different fold of the insulator with the strip of foil exposed.11-24-2011
20110294015Method and Apparatus for Production of a Thin-Film Battery - A method for production of a thin-film battery includes providing a mount structure, applying of a first unmasked flow of a first electrode material to the mount structure in order to form a first electrode layer, applying a second unmasked flow of a battery material in order to form a battery layer, and applying a third unmasked flow of a second electrode material in order to form a second electrode layer. The applying steps are repeated in order to produce a thin-film battery which consists of a plurality of first electrode layers, a plurality of battery layers, and a plurality of second electrode layers.12-01-2011
20090098464Reactive polymer-supporting porous film for battery separator and use thereof - The invention provides a reactive polymer-supporting porous film for use as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film, the partially crosslinked reactive polymer being obtained by the reaction of a crosslinkable polymer having at least one reactive group selected from the group consisting of 3-oxetanyl group and epoxy group in the molecule with a monocarboxylic acid.04-16-2009
20100112454COMPLIANT SEAL STRUCTURES FOR PROTECTED ACTIVE METAL ANODES - Protected anode architectures have ionically conductive protective membrane architectures that, in conjunction with compliant seal structures and anode backplanes, effectively enclose an active metal anode inside the interior of an anode compartment. This enclosure prevents the active metal from deleterious reaction with the environment external to the anode compartment, which may include aqueous, ambient moisture, and/or other materials corrosive to the active metal. The compliant seal structures are substantially impervious to anolytes, catholyes, dissolved species in electrolytes, and moisture and compliant to changes in anode volume such that physical continuity between the anode protective architecture and backplane are maintained. The protected anode architectures can be used in arrays of protected anode architectures and battery cells of various configurations incorporating the protected anode architectures or arrays.05-06-2010
20100015529ELECTROLYTE ASSEMBLY FOR SECONDARY BATTERY OF NOVEL LAMINATED STRUCTURE - Disclosed herein is an electrode assembly for secondary batteries, wherein the electrode assembly is constructed in a structure in which a cathode, having an active material layer coated on one major surface of a current collector, and an anode, having an active material layer coated on one major surface of another current collector, are bent in a zigzag fashion in vertical section, and the cathode and the anode are fitted to each other, such that the electrode active material layers face each other, while a separator is disposed between the cathode and the anode. The electrode assembly according to the present invention has the effect of simplifying a process for manufacturing a battery, thereby reducing the manufacturing costs and the manufacturing time, and therefore, improving the productivity.01-21-2010
20120107694Positive Electrode Protective Layer Composition, Rechargeable Lithium Battery Including Protective Layer for Positive Electrode and Method of Manufacturing Same - A positive electrode protective layer composition of a rechargeable lithium battery includes a polymer compound and an ionic liquid including a borate-based anion. A rechargeable lithium battery includes the positive electrode protective layer. A method of manufacturing the same is also provided.05-03-2012
20080206646ALKALINE SECONDARY BATTERY WITH SEPARATOR CONTAINING AROMATIC POLYAMIDE FIBER - An electrode assembly of an alkaline secondary battery includes positive and negative electrodes disposed to face each other via a separator sandwiched therebetween. The separator has a dual-layer structure composed of a main-fiber nonwoven layer and an aromatic-polyamide-fiber nonwoven layer that are laminated in the thickness direction. The main-fiber nonwoven layer contains nylon as main fiber and does not contain aromatic-polyamide-fiber. In the electrode assembly, the separator is so disposed that the aromatic-polyamide-fiber nonwoven fabric layer faces toward the negative electrode.08-28-2008
20080206645NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - Provided is a non-aqueous electrolyte battery with excellent volume energy density and high safety. The battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. Between the positive and negative electrodes is interposed a microporous layer including insulating inorganic particles and a polyolefin. It is preferable that the microporous layer has a thickness of 1 to 10 μm, the polyolefin is polyethylene having a weight-average molecular weight of 500000 or greater, and the insulating inorganic particles have an average particle size of 0.1 to 2 μm.08-28-2008
20110171534Long lasting high current density charging & discharging, temperature-resistant batteries and related methods - Secondary batteries are disclosed, which comprise a separator of dielectric material permeable to ion flow in combination with aligned Carbon or Zirconium nanotubes extending between an anode and a cathode comprised of Zirconium and aligned nanotubes and having high surface areas, and one or two electrolytes comprising Bismuth in colloidal suspension and when two are used they are confined to two independent chambers to prevent comingling.07-14-2011
20120295164METHOD FOR PRODUCING LITHIUM ION SECONDARY BATTERY - The method for producing a lithium ion secondary battery includes: selecting a positive electrode sheet, negative electrode sheet, and separator sheet; constructing an electrode assembly by superimposing the selected sheets; and housing the above electrode assembly in a battery case along with an electrolyte solution. In the method, at least one of the sheets is selected such that it satisfies the relationship 0.811-22-2012
20120040251BATTERY ELECTRODE AND METHOD FOR MANUFACTURING SAME - A battery electrode with a pasting textile, fabric, or scrim made with an electrode grid (e.g., a stamped grid or expanded metal grid) coated in battery electrode and covered with pasting textile formed of a bonded, non-woven fiber web. The web is formed from one or more fibers with an average length greater than 20 μm. In various embodiments, the web is formed from one or more spun, continuous fibers. The battery electrode may be made in a continuous process where multiple grids are formed in a single sheet, coated with electrode active material, and the scrim before being cut into individual electrodes.02-16-2012
20080292967Method and Device for Producing a Battery and Battery - A method and a device for manufacturing a battery having a plurality of electrodes, wherein the method includes the step of forming non-formed active material on each electrode. The invention is distinguished in that the electrodes and thereby initially non-formed active material are held under a mechanical pressure during the formation step in order to limit the volume change of the active material during this step. The invention also concerns a battery.11-27-2008
20080292965RECHARGEABLE LITHIUM ION BATTERY AND METHOD FOR PRODUCING THE SAME - The present invention relates to a rechargeable lithium ion battery having an electrode plate with a high active material density and high electrolyte permeability. Upon producing the rechargeable lithium ion battery, hollow resin particles that can be collapsed by rolling are incorporated in a positive electrode mixture layer or a negative electrode mixture layer before the electrode mixture layer is rolled. The hollow resin particles are collapsed in the course of rolling the positive electrode mixture layer or the negative electrode mixture layer, so that the active material density can be easily increased. Further, the collapsed resin particles form unevenness on the surface of the electrode plate and also form open pores in the electrode plate, so that electrolyte permeability can be enhanced. As a result, the discharge capacity and rate characteristics of rechargeable lithium ion batteries can be increased.11-27-2008
20080305398STACKED NONAQUEOUS ELECTROLYTE BATTERY, MANUFACTURING METHOD THEREOF AND STACKING APPARATUS THEREFOR - A stacked nonaqueous electrolyte battery, a method of manufacturing the battery, and a stacking apparatus for the battery are provided. The stacked nonaqueous electrolyte battery includes a plurality of electrode bodies alternately stacked, each of the electrode bodies including an anode and a cathode laminated through a separator. The separator has a raised edge portion leading along an edge portion of one of the anode and the cathode, and the raised edge portions of the plurality of the separators overlap one another.12-11-2008
20080241697NON-AQUEOUS ELECTROLYTE BATTERY - In a non-aqueous electrolyte battery having a positive electrode (10-02-2008
20090246640ELECTRODE ASSEMBLY AND LITHIUM ION SECONDARY BATTERY HAVING THE SAME - An electrode assembly includes a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and a separator separating the positive electrode and the negative electrode from each other, and the separator including a porous layer formed by a combination of a barium titanate (BaTiO10-01-2009
20090246639SECONDARY BATTERY - An electrode assembly for a secondary battery comprising an adiabatic plate attached to the negative electrode plate is disclosed. The electrode assembly comprises a positive electrode plate having a positive electrode collector, a positive electrode coating, and a non-coated area on the positive electrode collector. The negative electrode plate has a negative electrode collector, a negative electrode coating, and a non-coated area on the negative electrode collector. A separator insulates the positive and negative electrode plates. Positive and negative electrode tabs are attached to the non-coated areas of the positive and negative electrode collectors. The negative electrode plate has an adiabatic plate attached to the surface of a non-coated area of the negative electrode collector that is opposite the surface to which the negative electrode tab is attached. This construction improves battery stability and prevents short circuits caused either by heat generated during overcharging or by an internal short circuit.10-01-2009
20090246637SECONDARY BATTERY - The invention provides a secondary battery having positive electrode plates 10-01-2009
20110223485MICROPOROUS MEMBRANES, METHODS FOR MAKING THESE MEMBRANES, AND THE USE OF THESE MEMBRANES AS BATTERY SEPARATOR FILMS - A membrane includes a first polyethylene having an Mw<1.0×1009-15-2011
20090117472NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SUCH NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY - A negative electrode 05-07-2009
20090253043ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - A secondary battery, which may include an electrode assembly, a can having an upper opening to receive the electrode assembly and a cap assembly finishing the opening of the can is disclosed. The electrode assembly may include a positive electrode plate provided with a positive electrode active material layer, a negative electrode plate provided with a negative electrode active material layer, a separator interposed between the positive electrode plate and the negative electrode plate and an insulation coating layer coated on the positive electrode plate. The insulation coating layer may includes a first coating layer coated on the positive electrode coating portion. The insulation coating layer may contain olivine type lithium phosphate compound. A second coating layer coated on the first coating layer may contain ceramic powder and a binder.10-08-2009
20100261064HIGH POWER LITHIUM UNIT CELL AND HIGH POWER LITHIUM BATTERY PACK HAVING THE SAME - Disclosed herein are a high power lithium unit cell and a high power lithium battery pack having the high power lithium unit cell. The present invention increases the width of an electrode terminal of a lithium battery, thus reducing heat generation and a potential drop due to resistance of the electrode terminal, therefore efficiently eliminating the generated heat.10-14-2010
20090047580NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is provided and includes a battery element in which a positive electrode having a positive electrode active material layer provided on a positive electrode collector and a negative electrode having a negative electrode active material layer provided on a negative electrode collector are stacked via a separator, and an edge of the negative electrode is disposed so as to protrude along the planar direction relative to an edge of the positive electrode. A positive electrode terminal is connected to the positive electrode, and a negative electrode terminal is connected to the negative electrode. The negative electrode terminal has a contact piece intersecting with the continuous direction of the edge of the negative electrode and intersecting with the planar direction of the negative electrode. The contact piece comprehensively cleaves and contacts a plurality of the edges of the negative electrode.02-19-2009
20100261065LAMINATED 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.10-14-2010
20100216026Thin film electrochemical energy storage device with three-dimensional anodic structure - A method for forming a battery from via thin-film deposition processes is disclosed. A mesoporous carbon material is deposited onto a surface of a conductive substrate that has high surface area, conductive micro-structures formed thereon. A porous, dielectric separator layer is then deposited on the layer of mesoporous carbon material to form a half cell of an energy storage device. The mesoporous carbon material is made up of CVD-deposited carbon fullerene “onions” and carbon nano-tubes, and has a high porosity capable of retaining lithium ions in concentrations useful for storing significant quantities of electrical energy. Embodiments of the invention further provide for the formation of an electrode having a high surface area conductive region that is useful in a battery structure. In one configuration the electrode has a high surface area conductive region comprising a porous dendritic structure that can be formed by electroplating, physical vapor deposition, chemical vapor deposition, thermal spraying, and/or electroless plating techniques.08-26-2010
20110059368SEPARTOR FOR HIGH-POWER DENSITY LITHIUM ION SECONDARY BATTERY (AS AMENDED) - There is provided a separator for a high-power density lithium ion secondary battery, the separator comprising a polyolefin microporous membrane, wherein the polyolefin microporous membrane has a tensile strength in the longitudinal direction (MD) of 50 MPa or higher and a tensile strength in the transverse direction (TD) of 50 MPa or higher, and a sum total of an MD tensile elongation and a TD tensile elongation of 20 to 250%; and the polyolefin microporous membrane comprises a polypropylene.03-10-2011
20100216027ELECTRIC STORAGE DEVICE, AND PRODUCTION METHOD THEREOF - A negative electrode mixture member accommodated in a bag-like separator includes a negative electrode provided with a negative electrode current collector and a negative electrode mixture layer formed on one surface of the negative electrode current collector, and a metal lithium foil adhered onto the negative electrode. Accordingly, even when the metal lithium is dropped from the negative electrode current collector of the negative electrode, the diffusion of the metal lithium in the electric storage device can be prevented. Consequently, short-circuit in the electric storage device or the corrosion of the outer casing caused by the free metal lithium can be prevented, whereby the safety of the electric storage device can be enhanced. Even when the metal lithium is dropped from the negative electrode current collector of the negative electrode, the metal lithium can be retained in the vicinity of the negative electrode. Therefore, the doping amount of the lithium ions can be secured as designed.08-26-2010
20100255380SEPARATOR FOR NONAQUEOUS ELECTROLYTE BATTERY AND NONAQUEOUS ELECTROLYTE BATTERY - To obtain a nonaqueous electrolyte battery that has an excellent nonaqueous electrolyte permeability into an electrode and an excellent electrolyte retentivity of the electrode and achieves a large capacity, a high energy density and a good high-temperature charge characteristic. A separator used for a nonaqueous electrolyte battery is formed by disposing a porous layer made of inorganic fine particles and a resin binder on a porous separator substrate. The resin binder is made of at least one resin selected from the group consisting of polyimide resins and polyamideimide resins, the resin having an acid value of 5.6 to 28.0 KOHmg/g and a logarithmic viscosity of 0.5 to 1.5 dl/g. The content of the resin binder in the porous layer is 5% by weight or more.10-07-2010
20100233547SEPARATOR FOR NONAQUEOUS ELECTROLYTE BATTERY AND NONAQUEOUS ELECTROLYTE BATTERY - To obtain a separator for a nonaqueous electrolyte battery that has an excellent nonaqueous electrolyte permeability into an electrode and an excellent electrolyte retentivity of the electrode and achieves a large capacity, a high energy density and a good high-temperature charge characteristic. A separator 3 used for a nonaqueous electrolyte battery is formed by disposing a porous layer 2 made of inorganic fine particles and a resin binder on a porous separator substrate 1, the resin binder is made of at least one resin selected from the group consisting of polyimide resins, polyamide resins and polyamideimide resins and the molecular chain of the resin has a halogen atom content of 10% to 30% by weight, and the content of the resin binder in the porous layer is 5% by weight or more.09-16-2010
20120141877ELECTRODE OF SECONDARY CELL INCLUDING POROUS INSULATING LAYER, AND MANUFACTURING METHOD THEREOF - The present invention provides a manufacturing method of a secondary cell electrode forming a porous insulating layer on at least one surface between a negative electrode and a positive electrode, including coating an electrode layer slurry on the electrode surface, coating the porous insulating layer while in a state in which the electrode layer slurry has not been dried, and simultaneously drying the electrode layer slurry and the porous insulating layer coating slurry so a binder of the porous insulating layer does not block the pores of the electrode layer.06-07-2012
20110027656ELECTROPHORETIC ASSEMBLY OF ELECTROCHEMICAL DEVICES - Methods are provided for making bipolar electrochemical devices, such as batteries, using electrophoresis. A bipolar device is assembled by applying a field that creates a physical separation between two active electrode materials, without requiring insertion of a discrete separator film or electrolyte layer.02-03-2011
20090246638Electrochemical Device - An electrochemical device comprises an electrode matrix including a multilayer structure composed of a positive electrode, a negative electrode, and a first separator, and first and second dummy electrodes electrically connected to the positive and negative electrodes, respectively. The first and second dummy electrodes have respective opposing parts opposing each other through a second separator at an outer peripheral part of the electrode matrix. One or each of the first and second dummy electrodes has a resistance control layer at least on a side where the opposing parts oppose each other. The resistance control layer has such a resistance value that an estimated internal short circuit current between the first and second dummy electrodes is equivalent to 0.09 C to 1.00 C. The first and second dummy electrodes are adapted to short-circuit each other at a lower temperature than the positive and negative electrodes do.10-01-2009
20100297507METHOD AND APPARATUS FOR POROUS INSULATIVE FILM FOR INSULATING ENERGY SOURCE LAYERS - Some embodiments include an anode having an elongate ribbon shape, a cathode having an elongate ribbon shape, the cathode disposed adjacent to and in alignment with the anode, a separator disposed between the anode and the cathode and an edge film means for insulating the edge of the cathode from the anode.11-25-2010
20110027657NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a separator between the positive electrode and the negative electrode, in which at least one of the positive electrode and the negative electrode has an active material layer containing a material whose electric resistance increases at a high temperature, and the material is unevenly distributed in proximity to the separator of the active material layer.02-03-2011
20110244335SEPARATION MEMBRANE FOR BATTERY, AND BATTERY - An object of the present invention is to provide a separation membrane for a battery, which is excellent in heat resistance, does not expand and shrink depending on a temperature history, has no problem that, even when pressure is applied at a point due to external pressure, dendrite growth or the like, it is broken at the pressure point and its function is damaged at the broken part, and has no problem that the ionic conductivity decreases to decrease the battery performance, and to provide a battery equipped with such a separation membrane for a battery.10-06-2011
20110076568METHOD FOR FORMING A VERTICAL THIN-FILM LITHIUM-ION BATTERY - A method for forming a lithium-ion type battery, including the successive steps of: forming, in a substrate, a trench; successively and conformally depositing a stack including a cathode collector layer, a cathode layer, an electrolyte layer, and an anode layer, this stack having a thickness smaller than the depth of the trench; forming, over the structure, an anode collector layer filling the space remaining in the trench; and planarizing the structure to expose the upper surface of the cathode collector layer.03-31-2011
20110086276Polymeric Material And Its Manufacture And Use - Disclosed herein is a polymer composition, its manufacture and use, said composition may comprise greater than about 90 mole % propylene monomer, and having a unique combination of properties, including one or more of the following: a heat of fusion of more than about 108 J/g, a melting point of 165° C. or higher, a Melt Flow Rate so low that it is essentially not measurable and a molecular weight of greater than about 1.5×1004-14-2011
20090311607BATTERY ELECTRODE SHEET - A battery electrode sheet comprises a conductive substrate and an electrode material coated on at least a portion of the conductive substrate. The coated portion of the conductive substrate comprises a first region, a second region, and a transition region between the first and second regions. The electrode material on the first region has a first thickness; and the electrode material on the second region has a second thickness, which is smaller than the first thickness. The electrode material on the transition region has a thickness that decreases between the first and second regions.12-17-2009
20120189916NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a non-aqueous electrolyte, a separator interposed between the positive electrode and the negative electrode, and a porous layer provided on a surface of the positive electrode. The porous layer contains titania particles, a dispersing agent, and an aqueous binder. The dispersing agent includes silica having an average particle size of less than 100 nm and less than that of the titania particles.07-26-2012
20110076569CURRENT CARRYING BLOCK FOR RESISTANCE WELDING, AND METHOD FOR MANUFACTURING SEALED BATTERY AND SEALED BATTERY EACH USING THE CURRENT CARRYING BLOCK - In a sealed battery, a metal current carrying block 03-31-2011
20110076567METHOD FOR FORMING A THIN-FILM LITHIUM-ION BATTERY - A method for forming a lithium-ion type battery including the steps of forming, over an at least locally conductive substrate, an insulating layer having a through opening; successively and conformally depositing a stack comprising a cathode collector layer, a cathode layer, an electrolyte layer, and an anode layer, this stack having a thickness smaller than the thickness of the insulating layer; forming, over the structure, an anode collector layer filling the space remaining in the opening; and planarizing the structure to expose the upper surface of the insulating layer.03-31-2011
20110151332SYSTEM AND METHOD FOR SEALING BATTERY SEPARATOR - One embodiment of the present subject matter includes a battery having a stack of substantially planar battery electrodes, the stack including a first electrode including a first tab, and a second electrode including a second tab, with the first tab electrically connected to the second tab. The embodiment includes a first separator layer and a second separator layer sandwiching the first electrode, with the edges of the first separator layer and the second separator connected with a weld, the first separator layer and the second separator layer defining an interior space in which the first electrode is disposed, with the first tab extending outside the interior space. The embodiment includes a battery housing having electrolyte disposed therein, the housing including at least a first aperture and a feedthrough aperture; a lid conformed and sealed to the first aperture; and a feedthrough conformed and sealed to the feedthrough aperture.06-23-2011
20100261066POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - The present invention has an object to provide a non-aqueous electrolyte secondary battery having a high capacity and favorable charge/discharge characteristics at a high current density. In order to achieve this object, the positive electrode for a non-aqueous electrolyte secondary battery in accordance with the present invention includes a current collector and an active material layer, the active material layer has a first active material layer including dendritic active material particles, and the dendritic active material particles branch out into a plurality of branch portions from a bottom portion of the current collector side toward a surface side of the first active material layer. In the first active material layer, it is preferable that an active material density of the bottom portion side is larger than an active material density of the surface side.10-14-2010
20090023073NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a porous insulating layer, and nonaqueous electrolyte. The porous insulating layer is interposed between the positive electrode and the negative electrode. The nonaqueous electrolyte is contained at least in the porous insulating layer. The mixture layer of the positive electrode and the porous insulating layer each include a structure retainer.01-22-2009
20100015530SEPARATOR FOR ELECTROCHEMICAL DEVICE, ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE - A separator for an electrochemical device of the present invention includes a porous film including: a filler; an organic binder; and at least one resin selected from resin A that has a melting point of 80 to 140° C. and resin B that absorbs a non-aqueous electrolyte and swells upon heating and whose swelling degree increases with increasing temperature, and the filler contains boehmite having a secondary particle structure in which primary particles are connected.01-21-2010
20090029260ELECTROCHEMICAL DEVICE AND METHOD OF MANUFACTURING THE SAME - An electrochemical device includes four or more electrodes which are laminated with separators provided between the respective electrodes, an electrolyte filled between the respective electrodes, and a sealing member which covers the periphery. The electrodes are arranged so that the polarities alternately change in the lamination direction, and each of the electrodes has projections projecting from diagonally opposite positions on the peripheral edge so that the positions of the projections of the electrodes of different polarities are opposite to each other in the lateral direction and the projections of the electrodes of the same polarity are aligned and connected with each other.01-29-2009
20080292966ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly and a secondary battery including the same. The electrode assembly includes: a positive electrode plate including a positive electrode active material applied to a positive electrode collector; a negative electrode plate including a negative electrode active material applied to a negative electrode collector; a separator disposed between the positive electrode plate and the negative electrode plate; and a ceramic layer disposed on a portion of the positive or negative electrode plate, adjacent to an outer surface of the electrode assembly. The positive electrode plate, the negative electrode plate, ceramic layer, and the separator are wound together. The ceramic layer prevents a short-circuit between the positive electrode plate and the negative electrode plate, and extends along between about 40% and 90% of the length of the positive or negative electrode plate, from a winding end thereof.11-27-2008
20080213671NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY - A negative electrode including a negative electrode current collector, first protrusions on a surface of the negative electrode current collector, a separation-stopping area on at least a part of a surface of each first protrusion, and a negative electrode active material layer including a negative electrode active material and formed on at least a top face of the first protrusion. This structure suppresses the separation of the negative electrode active material layer from the negative electrode current collector, the degradation of the current collecting ability, and the deformation of the negative electrode itself. A lithium ion secondary battery including this negative electrode has a high battery capacity, a high energy density, and an excellent charge/discharge cycle characteristic, and is capable of stably maintaining a high power over an extended period of time.09-04-2008
20100285370ELECTRODE GROUP WITH DESIRABLE HEAT DISSIPATING PERFORMANCE FOR USE IN LITHIUM ION BATTERIES - An electrode group for use in lithium ion batteries includes an anode plate, a cathode plate and a separator disposed between the anode plate and the cathode plate. The anode plate includes an anode current collector and an anode film containing anode active material formed on the anode current collector. The cathode plate includes a cathode current collector and a cathode film containing cathode active material formed on the cathode current collector. The anode current collector is formed with a number of anode extending portions extending along a width direction thereof and the anode extending portions are coupled together to form an anode lead. The cathode current collector is formed with a number of cathode extending portions extending along a width direction thereof and the cathode extending portions are coupled together to form a cathode lead.11-11-2010
20110097630METHOD FOR MANUFACTURING LITHIUM ION POLYMER BATTERY, BATTERY CELL, AND LITHIUM ION POLYMER BATTERY INCLUDING THE SAME - A method for manufacturing a lithium ion polymer battery is provided in which in injecting electrolyte into a lithium ion polymer battery, the battery cell is immersed in an electrolyte impregnation bath to allow the electrolyte to be impregnated into the cell. The electrolyte can be impregnated simultaneously, and as the battery cell is activated, the electrolyte is settled down in the interior of the battery cell. Thus, when the battery cell is sealed, a phenomenon that the electrolyte is present at the sealed portion can be prevented.04-28-2011
20090202915NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY - A negative electrode (08-13-2009
20100028781ELECTRODE PACK OF AN ELECTRICHEMICAL CELL AND ELECTROCHEMICAL CELL WITH AN ELECTRODE PACK - The invention relates to an electrode pack of an electrochemical cell (02-04-2010
20110117438ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY USING THE SAME - An electrode assembly and a rechargeable battery using the same include a positive electrode including a positive current collector and a positive active material on the positive current collector; a negative electrode including a negative current collector and a negative active material on the negative current collector; an outer electrode including an outer current collector and an outer active material on the outer current collector, wherein the outer current collector includes an outer surface facing away from an outer separator and an inner surface facing toward the outer separator, and the outer active material is on both the outer surface and the inner surface, and wherein a thickness of the outer active material is less than at least one of a thickness of the positive active material or a thickness of the negative active material.05-19-2011
20090004570Electrode for Non-Aqueous Electrolylte Secondary Battery, Method for Producing the Same, and Non-Aqueous Electrolyte Secondary Battery - An electrode for a non-aqueous electrolyte secondary battery including a current collector and an electrode material mixture layer formed on the current collector, and having a plurality of discontinuous slits through the current collector and the electrode material mixture layer.01-01-2009
20120301791LAMINATED SECONDARY BATTERY - The present invention aims at providing a laminated secondary battery in which no short circuit occurs even if an electrode sheet is not covered with an insulating resin. The present invention provides a laminated secondary battery in which positive electrode sheet 11-29-2012
20120003545METHOD FOR MANUFACTURING ELECTRODE HAVING POROUS COATING LAYER, ELECTRODE MANUFACTURED THEREFROM, AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME - A method for manufacturing an electrode may include (S1) preparing a sol solution containing a metal alkoxide compound, and (S2) forming a porous non-woven coating layer of an inorganic fiber by electroemitting the sol solution onto an outer surface of an electrode active material layer formed on at least one surface of a current collector. The porous non-woven coating layer formed on the outer surface of the electrode active material layer may be made from an inorganic fiber having excellent thermal stability. When an electrochemical device is overheated, the porous non-woven coating layer may contribute to suppression of a short circuit between a cathode and an anode and performance improvement of an electrochemical device due to uniform distribution of pores.01-05-2012
20090029259BATTERY - A battery of this invention includes: a separator which is folded in a zigzag manner, thereby forming a layered structure having at least one first-electrode holding part and at least one second-electrode holding part which are alternately aligned; a first electrode accommodated in the first-electrode holding part; and a second electrode accommodated in the second-electrode holding part. At least one of the first electrode and the second electrode has at least one protruding part. The first electrode is connected to a first terminal, and the second electrode is connected to second terminal.01-29-2009
20120015254Method For Manufacturing Separator Including Porous Coating Layers, Separator Manufactured By The Method And Electrochemical Device Including The Separator - Disclosed is a method for manufacturing a separator. The method includes (S1) preparing a slurry containing inorganic particles dispersed therein and a solution of a binder polymer in a solvent, and coating the slurry on at least one surface of a porous substrate to form a first porous coating layer, and (S2) electroprocessing a polymer solution on the outer surface of the first porous coating layer to form a second porous coating layer. The first porous coating layer formed on at least one surface of the porous substrate is composed of a highly thermally stable inorganic material to suppress short-circuiting between an anode and a cathode even when an electrochemical device is overheated. The second porous coating layer formed by electroprocessing improves the bindability of the separator to other base materials of the electrodes.01-19-2012
20100190063METHOD AND APPARATUS FOR MANUFACTURING MEMBER FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - At least (i) dispersing and mixing inorganic oxide filler, solvent and binder so as to produce a coating paint; (ii) supplying the coating paint to a gravure coater; and (iii) coating the coating paint to member via a gravure roll are included. The (i) or (ii) includes allowing the coating paint to stand still and removing an aggregate and a precipitate of inorganic oxide filler.07-29-2010
20120208090MICROPOROUS MEMBRANES, METHODS FOR MAKING SUCH MEMBRANES, AND THE USE OF SUCH MEMBRANES - The invention relates to microporous membranes comprising first and second components, the first component being polymer and the second component being aliphatic paraffin having a backbone and pendent groups. The invention also relates to methods for making such membranes, and the use of such membranes, e.g., as battery separator film.08-16-2012
20120156568BATTERY SEPARATORS WITH VARIABLE POROSITY - A porous polymer battery separator is provided that includes variable porosity along its length. Such battery separators can increase the uniformity of the current density within electrochemical battery cells that may normally experience higher current density and higher temperatures near their terminal ends than they do near their opposite ends. By disposing a variable porosity separator between the electrodes of an electrochemical cell such that its terminal end has a lower porosity than its opposite end, the transport of ions, such as lithium ions, through the separator can be more restricted in normally high current regions and less restricted in normally low current regions, thereby increasing the overall uniformity of current density within the battery cell. Variable porosity battery separators may be produced by a dry-stretching process or by a wet process. These processes may include forming a polymer-containing film, producing a uniform distribution of pore sites within the film, and reforming the polymer-containing film to a uniform thickness.06-21-2012
20110091774POROUS FILM AND SECONDARY BATTERY ELECTRODE - Provided is a porous film that can contribute to improving the cycle characteristics of an electric cell by improving binding characteristics, for a porous film provided on a surface of an electrode used in a secondary cell and the like. The porous film comprises a water-soluble polymer, an inorganic filler, and a water-insoluble particulate polymer including 0.5-40 mass % of a monomer unit having a hydrophilic group selected from the group consisting of carboxylic acid groups, hydroxyl groups, and sulfonate groups.04-21-2011
20110104572ELECTRODE ASSEMBLY FOR SECONDARY BATTERY AND METHOD OF MAKING THE ELECTRODE ASSEMBLY - An electrode assembly for a secondary battery and a method of manufacturing the same are disclosed. An electrode assembly comprises: a plurality of separator members formed by winding a central separator member, wherein the central separator member is a predeterminated portion of the separator; and a plurality of electrode members positioned between each of the separator members; wherein the separator including the plurality of separator members and the central separator member is one of the plurality of separator members, and wherein both opposite ends of the central separator member is curved in opposite directions, respectively.05-05-2011
20120315545LITHIUM-SULFUR BATTERY WITH POLYSULFIDE CONFINING LAYER - The present invention provides a lithium-sulfur battery with a polysulfide confining layer, which can prevent loss of polysulfide formed on the surface of a positive electrode during charge and discharge reactions, thus improving the durability of the battery. For this purpose, the present invention provides a lithium-sulfur battery including a hydrophilic polysulfide confining layer interposed between a positive electrode and a separator to prevent a polysulfide-based material from being lost from the surface of the positive electrode during discharge.12-13-2012
20100009264HIGH RATE DISCHARGE BATTERY CELL - A high rate discharge battery cell 01-14-2010
20100203394THIN METAL-AIR BATTERIES - Thin metal-air batteries are described. The batteries do not have an enclosure.08-12-2010
20110236762POROUS MEMBRANES AND METHODS OF MAKING THE SAME - The instant disclosure relates to porous membranes and methods of making the same. An example of the method includes exposing a polymeric film (including a polymer and i) a gel-forming polymer, ii) ceramic particles, or iii) combinations of i and ii) established on a carrier belt to a non-solvent or a slightly miscible solvent of a polymer in the polymeric film, thereby inducing formation of a porous structure in the polymeric film. The method further includes transporting the polymeric film on the carrier belt into a bath of a non-solvent or a slightly miscible solvent of the polymer for a predetermined time thereby finalizing the formation of the porous structure and forming the porous membrane. The porous membrane is removed from the non-solvent or slightly miscible solvent bath.09-29-2011
20100203393Device for Storing Electric Power Compring a Protective Barrier Layer for the Collector - The invention concerns a device for storing electric power comprising an electrode layer (08-12-2010
20110159373ELECTROCHEMICAL CELL - An electrochemical cell, membrane, and method for making the membrane and electrochemical cell are disclosed in which ion passage channels of the membrane have advantageous characteristics relating to dimensions, positioning, and patterning. The ion passage channels are formed by selected means of radiation, many of which require post-radiation manipulation.06-30-2011
20130022876SURFACE MODIFIED POLYMERIC MATERIALS, MODIFIED FUNCTIONALIZED POLYMERS, FUNCTIONAL POLYMERS, AND METHODS - The present invention relates to new, improved or modified polymer materials, membranes, substrates, and the like and to new, improved or modified methods for permanently modifying the physical and/or chemical nature of surfaces of the polymer materials, membranes, or substrates for a variety of end uses or applications. For example, one improved method uses a carbene and/or nitrene modifier to chemically modify a functionalized polymer to form a chemical species which can chemically react with the surface of a polymer substrate and alter its chemical reactivity. Furthermore, this invention can be used to produce chemically modified membranes, fibers, hollow fibers, textiles, and the like.01-24-2013
20130177817SEPARATOR FOR NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICES, NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE, AND PRODUCTION METHODS THEREOF - The present invention aims to provide a method for producing a separator for nonaqueous electrolyte electricity storage devices, the method allowing avoidance of use of a solvent that places a large load on the environment, and also allowing relatively easy control of parameters such as the porosity and the pore diameter.07-11-2013
20080199781METHOD OF PRODUCING AN ELECTROCHEMICAL CELL AND ARTICLES PRODUCED THEREFROM - A method of producing an electrode assembly comprises positioning a first adhesive between a first surface of a first electrode layer having a width W08-21-2008
20130149614SEPARATOR FOR ALKALINE BATTERY, AND ALKALINE BATTERY - An object of the present invention is to provide a separator for alkaline battery and an alkaline battery capable of reducing the internal resistance of the alkaline battery so as to improve the heavy load discharge performance. The separator for alkaline battery is a separator for separating a positive electrode active material and a negative electrode active material of the alkaline battery from each other, the separator containing 40% or more by weight of cellulose fibers, and 0.05% to 0.5% by weight of polyamine-epichlorohydrin resin in terms of resin solid content. The alkaline battery has its positive electrode active material and negative electrode active material separated from each other by the separator.06-13-2013
20110274980METHOD OF PRODUCING AN ELECTROCHEMICAL CELL AND ARTICLES PRODUCED THEREFROM - A method of producing an electrode assembly comprises disposing a thermoplastic polymer powder between a first surface of a first electrode and a first surface of a microporous separator to form a separator/electrode pre-assembly; and adhering the first surface of the first electrode to the first surface of the microporous separator via the thermoplastic polymer powder to form a separator/electrode assembly, wherein the adhesive thermoplastic polymer does not form a solid layer.11-10-2011
20100316911MULTILAYER STRUCTURE AND METHOD OF PRODUCING THE SAME - A multilayer structure, in particular a trench capacitor, is provided comprising a patterned layer structure comprising trenches, and a first electrode, wherein the patterned layer structure comprises a FASS-curve structure, and wherein at least parts of the first electrode are formed on the FASS-curve structure.12-16-2010
20110311878POLYOLEFIN MICROPOROUS MEMBRANE AND SEPARATOR FOR LITHIUM ION SECONDARY BATTERY - A polyolefin microporous membrane that can realize a lithium ion secondary battery having favorable resistance against foreign matters or the like, and high cycle characteristics at a high temperature is provided. The present invention provides a polyolefin microporous membrane having a ratio of tensile strength in a length direction to that in a width direction of 0.75 to 1.25, and a thermal shrinkage rate in the width direction at 120° C. of less than 10%.12-22-2011
20130189587MICROPOROUS MEMBRANES, METHODS FOR MAKING SUCH MEMBRANES, AND THE USE OF SUCH MEMBRANES AS BATTERY SEPARATOR FILM - The invention relates to microporous membranes having a thickness 19.0 micrometer or less, the membranes having a relatively high porosity, air permeability and puncture strength. Such membranes can be produced by extrusion and are suitable for use as battery separator film.07-25-2013
20130202970Salt Modified Inherently Electrostatic Dissipative Polymers - The present invention relates to inherently electrostatic dissipative polymers, such as thermoplastic urethanes (TPU), and compositions thereof. The present invention provides a composition comprising: (a) an inherently dissipative polymer and (b) a halogen-free metal salt of an amidoalkanesulfonic acid, a hydrocarbyl-substituted benzenesulfonic acid, or a mixture thereof, or a polymer derived therefrom. The invention also provides a shaped polymeric article comprising the inherently dissipative polymer compositions described herein. The invention also provides a process of making the inherently dissipative polymer compositions described herein. The process includes the step of mixing a halogen-free metal-containing salt into an inherently dissipative polymer.08-08-2013
20120094183Battery Separator With Improved Oxidation Stability - The invention relates to a thermoplastic polymer-based battery separator, which contains a compound of formula R (OR04-19-2012

Patent applications in class With insulating separator, spacer or retainer means