| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 429213000 | Organic component is active material | 68 |
| 20110195308 | Secondary particle and lithium battery including secondary particle - A secondary particle and a lithium battery including the same are provided wherein the secondary particle includes a plurality of primary particles and each primary particle contains n polycyclic nano-sheets disposed upon one another. The polycyclic nano-sheets include hexagonal rings of six carbon atoms linked to each other, wherein a first carbon and a second carbon have a distance therebetween of L | 08-11-2011 |
| 20080226986 | Power Storage Device - An object of the present invention is to provide a power storage device with low internal resistance, employing a cathode containing a nitroxyl polymer. To attain the object in the present invention, in the power storage device employing a cathode comprising a nitroxyl polymer, a cathode collector having a conductive auxiliary layer comprising carbon as a main component formed and integrated on an aluminum electrode is used. | 09-18-2008 |
| 20130078516 | NEGATIVE ELECTRODE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a negative electrode material for a non-aqueous electrolyte secondary battery that includes particles of a silicon-based active material, the particles of a silicon-based active material being coated with a film of an organosilicon compound that contains a perfluoropolyether group, and a non-aqueous electrolyte secondary battery therewith. As a result, there is provided a negative electrode material for a non-aqueous electrolyte secondary battery that is high in capacity, excellent in initial charge/discharge efficiency and cycle characteristics and high in safety and reliability, and a non-aqueous electrolyte secondary battery that uses the negative electrode material. | 03-28-2013 |
| 20130034775 | CARBON NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, PRODUCTION METHOD THEREOF AND LITHIUM SECONDARY BATTERY USING THE SAME - A carbon negative electrode material for a lithium secondary battery includes: a core carbon material; and a coated layer covering the core carbon material and comprising a carbon coating material and carbon fiber. | 02-07-2013 |
| 20130040197 | Polymer-Sulfur Composite Materials for Electrodes in Li-S Energy Storage Devices - Composite materials containing sulfurized polymers and sulfur-containing particles can be used in lithium-sulfur energy storage devices as a positive electrode. The composite material exhibits relatively high capacity retention and high charge/discharge cycle stability. In one particular instance, the composite comprises a sulfurized polymer having chains that are cross-linked through sulfur bonds. The polymer provides a matrix in which sulfide and/or polysulfide intermediates formed during electrochemical charge-discharge processes of sulfur can be confined through chemical bonds and not mere physical confinement or sorption. | 02-14-2013 |
| 20130115513 | ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, AND ELECTRODE AND LITHIUM BATTERY CONTAINING THE SAME - An electrode active material includes a core capable of intercalating and deintercalating lithium; and a surface treatment layer disposed on at least a portion of a surface of the core, wherein the surface treatment layer includes a lithium-free oxide having a spinel structure, and an intensity of an X-ray diffraction peak corresponding to impurity phase of the lithium-free oxide, when measured using Cu—Kα radiation, is at a noise level of an X-ray diffraction spectrum or less. | 05-09-2013 |
| 20130089783 | Negative Active Material and Lithium Battery Containing the Negative Active Material - A negative active material and a lithium battery including the same are disclosed. Due to the inclusion of silicon nanowires formed on a spherical carbonaceous base material, the negative active material may increase the capacity and cycle lifespan characteristics of the lithium battery. | 04-11-2013 |
| 20130089784 | NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY CONTAINING THE NEGATIVE ACTIVE MATERIAL - A negative active material and a lithium battery including the negative active material. The negative active material includes primary particles, each including: a crystalline carbonaceous core having a surface on which silicon-based nanowires are disposed; and an amorphous carbonaceous coating layer that is coated on the crystalline carbonaceous core so as not to expose at least a portion of the silicon-based nanowires. Due to the inclusion of the primary particles, an expansion ratio is controlled and conductivity is provided and thus, a formed lithium battery including the negative active material may have improved charge-discharge efficiency and cycle lifespan characteristics. | 04-11-2013 |
| 20130071742 | LITHIUM ION BATTERIES - A lithium ion battery includes a positive electrode, a negative electrode, and a microporous polymer separator soaked in an electrolyte solution. The microporous polymer separator is disposed between the positive electrode and the negative electrode. An ion exchange polymer material is any of i) incorporated as a binder in any of the positive electrode or the negative electrode, ii) deposited onto a surface of any of the positive electrode or the negative electrode, iii) incorporated into the microporous polymer separator, or iv) deposited onto a surface of the microporous polymer separator. Examples of methods for making the ion exchange polymer material for use in the lithium ion batteries are also disclosed herein. | 03-21-2013 |
| 20130059203 | ANODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME - Provided are an anode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery including same. An anode active material for a lithium secondary battery according to the present invention includes: active particles by means of which lithium ions may be absorbed/released; and a coating layer coated on the surface of the active particles, wherein the coating layer includes a first material which is a hollow nanofiber and a second material which is a carbon precursor or LTO. | 03-07-2013 |
| 20130059202 | POLYMER-COATED ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY USING THE SAME - Provided is a lithium ion secondary battery including a cathode that is capable of occluding and emitting lithium ions, and an anode that is capable of occluding and emitting the lithium ions. A polymer compound containing a polyether portion and a carboxylic acid bonding portion is bonded to an active material as shown with a structure I, a structure II, a structure III, and a structure IV. | 03-07-2013 |
| 20120196182 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY - The present invention provides a positive electrode active material for nonaqueous solvent secondary batteries, comprising, as an active ingredient, a 1,4-benzoquinone compound having lower alkoxy groups as substitutes, and a nonaqueous secondary battery comprising the positive electrode active material as a constituent. According to the invention, a nonaqueous secondary battery having a high energy density and excellent cycle characteristics can be obtained by using a positive electrode active material composed of an organic compound with a low environmental load. | 08-02-2012 |
| 20130122367 | LITHIUM PRIMARY CELL - The lithium primary battery of the present invention includes a positive electrode including a first active material capable of absorbing lithium ions and a second active material capable of absorbing and desorbing lithium ions. The second active material is automatically charged by the first active material while the lithium primary battery is in an open circuit state. The first active material is, for example, graphite fluoride or manganese dioxide. The second active material is, for example, an organic compound having two or more ketone groups in a molecule. The second active material may be a polymer. | 05-16-2013 |
| 20130130109 | Nanostructured Metal Oxides Comprising Internal Voids and Methods of Use Thereof - The present invention relates to nano structures of metal oxides having a nanostructured shell (or wall), and an internal space or void. Nanostructures may be nanoparticles, nanorod/belts/arrays, nanotubes, nanodisks, nanoboxes, hollow nanospheres, and mesoporous structures, among other nanostructures. The nanostructures are composed of polycrystalline metal, oxides such as SnO | 05-23-2013 |
| 20130130110 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material based on lithium nickel-manganese-cobalt oxide represented by Formula 1, wherein the lithium nickel-manganese-cobalt oxide has a nickel content of at least 40% among overall transition metals and is coated with a conductive polymer at a surface thereof. A lithium secondary battery having the disclosed cathode active material has advantages of not deteriorating electrical conductivity while enhancing high temperature stability, so as to efficiently provide high charge capacity. | 05-23-2013 |
| 20110281163 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A negative electrode for a non-aqueous electrolyte secondary battery includes a negative electrode core member and a negative electrode mixture layer adhering to the negative electrode core member. The negative electrode mixture layer includes graphite particles, a water-soluble polymer coating the surfaces of the graphite particles, and a binder bonding the graphite particles coated with the water-soluble polymer. The negative electrode mixture layer has a specific surface area of 2.2 to 3 m | 11-17-2011 |
| 20090053602 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY AND METHOD OF MANUFACTURING THE SAME, AND NON-AQUEOUS ELECTROLYTE BATTERY AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a positive electrode for a non-aqueous electrolyte battery includes: applying a positive electrode slurry onto a positive electrode current collector, the positive electrode slurry containing a positive electrode active material, a conductive agent, carboxymethylcellulose, and a latex-based plastic. The method is characterized by including: a first step of dispersing and mixing the carboxymethylcellulose and the conductive agent in an aqueous solution to prepare a conductive agent slurry; and a second step of dispersing and mixing the positive electrode active material and the latex-based plastic in the conductive agent slurry, to prepare the positive electrode slurry. | 02-26-2009 |
| 20120088154 | Graphene-Sulfur Nanocomposites for Rechargeable Lithium-Sulfur Battery Electrodes - Rechargeable lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter less than 50 nm. | 04-12-2012 |
| 20110269015 | CONDUCTIVE AGENT, POSITIVE ELECTRODE SLURRY COMPOSITION FOR LITHIUM SECONDARY BATTERY INCLUDING THE CONDUCTIVE AGENT, AND LITHIUM SECONDARY BATTERY INCLUDING THE CONDUCTIVE AGENT - A conductive agent having a nonzero surface charge, a positive electrode slurry composition of a lithium secondary battery, including the conductive agent, and a lithium secondary battery including the conductive agent. | 11-03-2011 |
| 20090142665 | Active material for rechargeable lithium battery and rechargeable lithium battery including the same - An active material for a rechargeable lithium battery is provided with a non-carbon-based material on which nanofiber-shaped carbon having an oxygen-included functional group is grown. The negative active material for a rechargeable lithium battery has good conductivity and cycle life characteristics. | 06-04-2009 |
| 20090311597 | Conductive lithium storage electrode - A compound comprising a composition A | 12-17-2009 |
| 20120107685 | ELECTROPOSTIVE PLATE, BATTERY, VEHICLE BATTERY-MOUNTED DEVICE, AND ELECTROPOSITIVE PLATE MANUFACTURING METHOD - Provided is a positive electrode plate, which is high in the peeling strength of an anode activating substance layer and which is suppressed in the increase of a battery resistance. Also provided are a battery using the positive electrode plate, a vehicle having the battery mounted thereon, a battery-mounting device, and a positive electrode plate manufacturing method capable of manufacturing the anode activating substance layer properly. The positive electrode plate includes a substrate having conductivity, and a positive electrode active material layer formed in the substrate and containing positive electrode active material particles, a conductive material and binders. These binders are made of either only polyethylene oxide, or only polyethylene oxide and carboxymethyl cellulose. | 05-03-2012 |
| 20110200875 | SULFUR-MODIFIED POLYACRYLONITRILE, MANUFACTURING METHOD THEREFOR, AND APPLICATION THEREOF - Provided is a sulfur-modified polyacrylonitrile manufacturing method that is characterized in that a starting base powder that comprises sulfur powder and polyacrylonitrile powder is mixed and the mixture is heated in a non-oxidizing environment while outflow of sulfur vapor is prevented. Also provided are a cathode for lithium batteries that uses, as the active substance, the sulfur-modified polyacrylonitrile manufactured with the method, and a lithium secondary battery that includes the cathode as a component element. This enables the practical use of an inexpensive sulfur-based material as the cathode material for lithium secondary batteries, and in particular, a sulfur-based cathode material that enables higher output and has excellent cycle life characteristics, as well as other characteristics, and secondary lithium batteries using the same can be obtained. | 08-18-2011 |
| 20110200874 | ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY ANODE, LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY - The invention provides an anodic carbon material for a lithium secondary battery and a lithium secondary battery anode having excellent charge/discharge cycle characteristics, and a lithium secondary battery using the same. More specifically, an anodic carbon material for a lithium secondary battery according to the present invention comprises: composite particles composed of silicon-containing particles containing an alloy, oxide, nitride, or carbide of silicon capable of occluding and releasing lithium ions and a resinous carbon material enclosing the silicon-containing particles; and a network structure formed from nanofibers and/or nanotubes that bond to surfaces of the composite particles and that enclose the composite particles, and wherein: the network structure contains silicon. | 08-18-2011 |
| 20110269016 | METHOD FOR PRODUCING ANODE FOR LITHIUM SECONDARY BATTERY AND ANODE COMPOSITION, AND LITHIUM SECONDARY BATTERY - The invention relates to an anode for lithium secondary battery comprising vapor grown carbon fiber uniformly dispersed without forming an agglomerate of 10 μm or larger in an anode active material using natural graphite or artificial graphite, which anode is excellent in long cycle life and large current characteristics. Composition used for production for the anode can be produced, for example, by mixing a thickening agent solution containing an anode active material, a thickening agent aqueous solution and styrene butadiene rubber as binder with a composition containing carbon fiber dispersed in a thickening agent with a predetermined viscosity or by mixing an anode active material with vapor grown carbon fiber in dry state and then adding polyvinylidene difluoride thereto. | 11-03-2011 |
| 20090142664 | POLYPYRROLE AND SILVER VANADIUM OXIDE COMPOSITE - In one embodiment of the present disclosure, a composite electrode for a battery is provided. The composite electrode includes silver vanadium oxide present in an amount from about 75 weight percent to about 99 weight percent and polypyrrole present in an amount from about 1 weight percent to about 25 weight percent. | 06-04-2009 |
| 20090325067 | WET-TO-USE ORGANIC CELL BATTERY - A wet-to-use organic cell battery includes a container filled with an electrolyte that is made from organic materials, an electrolyte solution, such as water, can be repeatedly added into the container to mix with the electrolyte, and two electrodes electrically connected to a mixture of the electrolyte and the electrolyte solution, and insulated from each other. Thus, the organic cell battery of the present invention has the advantages of being able to preserve the electrodes from consumption and rustiness, being refreshable, and being benign to environment and public health. | 12-31-2009 |
| 20110229759 | ELECTRODES INCORPORATING NANOSTRUCTURED POLYMER FILMS FOR ELECTROCHEMICAL ION STORAGE - Ion storage electrodes formed by coating an underlying substrate with a nanofibrillar film of structured conjugate polymer nanofibers and methods of forming such electrodes are described herein. The electrical properties of the electrodes may be customized by modifying the structure of the polymer nanofibers, the thickness of the nanofiber film, and the pore size of the nanofiber films. | 09-22-2011 |
| 20100151319 | HIGHLY ELECTRON CONDUCTIVE POLYMER AND ELECTROCHEMICAL ENERGY STORAGE DEVICE WITH HIGH CAPACITY AND HIGH POWER USING THE SAME - Disclosed is a method for preparing a highly electron conductive polymer, the method comprising a step of doping a conductive polymer with a dopant capable of introducing movable charge carriers into the repeating units of the polymer, wherein a voltage higher than a conduction band of the polymer is applied to the polymer while the polymer is doped with the dopant, so as to modify electron conductivity of the conductive polymer. A highly electron conductive polymer obtained by the method, an electrode comprising the highly electron conductive polymer, and an electrochemical device including the electrode arc also disclosed. The novel doping method for improving the electron conductivity of a conductive polymer can provide a conductive polymer with a conductivity comparable to the conductivity of a conventional conductive agent. | 06-17-2010 |
| 20120244438 | ANODES WITH MESOPOROUS SILICON PARTICLES - The present invention provides anode materials, methods of producing them, electrochemical cells, and lithium-ion batteries, where the anode material comprises mesoporous silicon and carboxymethyl cellulose. In certain embodiments, the mesoporous silica additionally comprises other materials within its pores, such as lithium. | 09-27-2012 |
| 20100239904 | PHOSPHORATED POLYMER, METHOD FOR MAKING THE SAME, AND LITHIUM-ION BATTERY USING THE SAME - A phosphorated polymer includes a conductive polymer main-chain and a side-chain connected to the conductive polymer main-chain. The side-chain includes an electrochemically active phosphorated group Pm. A method for making the phosphorated polymer and a lithium-ion battery using the phosphorated polymer is also provided. | 09-23-2010 |
| 20100239905 | PHOSPHORATED COMPOSITE, METHOD FOR MAKING THE SAME, AND LITHIUM-ION BATTERY USING THE SAME - A phosphorated composite capable of electrochemical reversible lithium storage includes a conductive matrix and a red phosphorus. The conductive matrix includes a material being selected from the group consisting of conductive polymer and conductive carbonaceous material. A weight percentage of the conductive matrix in the phosphorated composite ranges from about 10% to about 85%. A weight percentage of the red phosphorus in the phosphorated composite ranges from about 15% to about 90%. A method for making the phosphorated composite and a lithium-ion battery using the phosphorated composite is also provided. | 09-23-2010 |
| 20100255372 | PROCESS FOR PRODUCING POLYRADICAL COMPOUND AND BATTERY CELL - Disclosed is a polyradical compound which can be used as an electrode active material for at least one of a positive electrode and a negative electrode. The polyradical compound has a repeating unit represented by general formula (1) and is crosslinked using a bifunctional crosslinking agent having two polymerizing groups in the molecule represented by general formula (2), wherein R | 10-07-2010 |
| 20110129730 | SECONDARY BATTERY AND CARBON INK FOR CONDUCTIVE AUXILIARY LAYER OF THE SAME - A secondary battery using a polymer radical material and a conducting additive in which the performance of a conductive auxiliary layer is further improved and the internal resistance is reduced, thereby achieving a higher output. Specifically disclosed is a secondary battery in which at least one of a positive electrode and a negative electrode uses, as an electrode active material, a polymer radical material and a conducting additive having electrical conductivity. By providing a conductive auxiliary layer between a current collector and the polymer radical material/conducting additive electrode which is mainly composed of graphite, fibrous carbon or a granular carbon having a DBP absorption of not more than 110 cm | 06-02-2011 |
| 20120244437 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - A positive electrode for a lithium secondary battery is described which includes a lithium transition metal complex oxide including a lithium nickel based complex oxide and/or a lithium cobalt based complex oxide, active carbon having a specific surface area of from about 900 m | 09-27-2012 |
| 20090214952 | ANODE AND SECONDARY BATTERY - A secondary battery capable of providing a high energy density and superior cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer containing a carbon material and a lithium-containing compound (Li | 08-27-2009 |
| 20120148919 | ORGANIC NEGATIVE ELECTRODE AND BATTERY USING THE ORGANIC NEGATIVE ELECTRODE - An organic negative electrode is provided in the present application. The organic negative electrode comprises a first element having conductive material, a second element formed by a high polymer solution and set on the first element, and a third element having chlorophyll and formed on the second element. A battery with said organic negative electrode is also provided. | 06-14-2012 |
| 20120034522 | Active material for rechargeable lithium battery and rechargeable lithium battery - An active material for a rechargeable lithium battery and a rechargeable battery, the active material including an active material core; and a thin film graphite layer on the core. | 02-09-2012 |
| 20090246631 | ELECTRICITY STORAGE DEVICE - Disclosed is an electricity storage device which can be charged/discharged at high rate and have high output, high capacity and excellent repeating charge/discharge characteristics, although it uses a non-carbon material as a negative electrode active material. Specifically disclosed is an electricity storage device comprising: a positive electrode collector; a positive electrode disposed on the positive electrode collector and including a positive electrode active material which can reversibly absorb/desorb at least anions; a negative electrode collector; and a negative electrode disposed on the negative electrode collector and including a negative electrode active material which can substantially absorb/desorb lithium ions reversibly. The negative electrode active material is composed of at least one substance selected from the group consisting of silicon, a silicon-containing alloy, a silicon compound, tin, a tin-containing alloy, and a tin compound; and the negative electrode is formed as a thin film having a thickness of 10 μm or less. | 10-01-2009 |
| 20110256448 | MOLTEN SALT-CONTAINING METAL ELECTRODE FOR RECHARGEABLE OXIDE-ION BATTERY CELLS OPERATING BELOW 800?C - A rechargeable oxide-ion battery cell | 10-20-2011 |
| 20110256450 | ELECTROCHEMICAL CELLS COMPRISING POROUS STRUCTURES COMPRISING SULFUR - The present invention relates to the use of porous structures comprising sulfur in electrochemical cells. Such materials may be useful, for example, in forming one or more electrodes in an electrochemical cell. For example, the systems and methods described herein may comprise the use of an electrode comprising a conductive porous support structure and a plurality of particles comprising sulfur (e.g., as an active species) substantially contained within the pores of the support structure. | 10-20-2011 |
| 20110136008 | LITHIUM-ION SECONDARY BATTERY, ANODE FOR LITHIUM-ION SECONDARY BATTERY, POWER TOOL, ELECTRIC VEHICLE AND ENERGY STORAGE SYSTEM - A lithium-ion secondary battery allowed to improve cycle characteristics and initial charge-discharge characteristics is provided. The lithium-ion secondary battery includes: a cathode; an anode including an anode active material layer; and an electrolytic solution. The anode active material layer includes an anode active material and an inorganic compound, and the inorganic compound includes one or both of an alkoxysilane compound and a hydrolysate thereof. | 06-09-2011 |
| 20110256449 | ORGANIC COATED FINE PARTICLE POWDERS - Solid organic matter coated fine solid particles and the applications of such coated particles are described. These uniformly coated carbonaceous particles provide an improved material for use as an electrochemical material. In one example, methods of manufacturing uniformly coated particles from lignin and graphite are described. In another embodiment, petroleum pitch coated calcined coke powder is demonstrated. | 10-20-2011 |
| 20110189540 | CONDUCTIVE AGENT FOR BATTERY ELECTRODE, ELECTRODE CONTAINING THE SAME, AND BATTERY - Disclosed is a highly reliable secondary battery, as well as an electrode and a conductive agent used therefor, which battery has a long cycle life and is also less likely to be damaged or rupture even when the battery temperature becomes abnormally high. The conductive agent of the battery electrode contains, as the main component, a reaction product between a π-conjugated carbon material and a soluble polyimide, preferably a soluble block copolymerized polyimide. The battery electrode is formed by coating a composition containing this conductive agent and an electrode active substance onto a current collector. The battery comprises this electrode. | 08-04-2011 |
| 20110070490 | CARBON ELECTRODES FOR ELECTROCHEMICAL APPLICATIONS - Systems and methods are provided for producing high-surface-area three-dimensional electrodes for electrochemical applications. In one embodiment, sheets of precursor material are interleaved with sheets of a sacrificial material and then bonded to a base comprising a precursor material with a precursor bonding material. The precursor sheets, base and bonding material preferably formed from the same precursor material. The bonded structure is then pyrolyzed to create a lithium intercalating structure and remove the sacrificial material. In another embodiment, a reactive-ion etching process is used to pattern 3D structures into a sheet of precursor material. The 3D structure is then converted into a lithium intercalating structure through pyrolysis. In both embodiments, the components of the structure to be heat treated preferably comprise the same lithium intercalating precursor material. As a result, micro-scale high-aspect-ratio 3D electrode features having very fine structures can be patterned and created. | 03-24-2011 |
| 20090186271 | NON-AQUEOUS ELECTROLYTE BATTERY AND ELECTRODE, AND METHOD FOR MANUFACTURING THE SAME - A non-aqueous electrolyte battery including a positive electrode; a negative electrode; and a non-aqueous electrolyte, wherein at least one of the positive electrode and the negative electrode has an active material layer containing an ambient temperature molten salt and polyvinylpyrrolidone. | 07-23-2009 |
| 20120301784 | NONAQUEOUS SECONDARY BATTERY - The nonaqueous secondary battery of the present invention comprises a positive electrode having a positive electrode mixture layer containing a lithium-containing composite oxide as a positive electrode active material, a negative electrode, a separator, and a nonaqueous electrolyte. The surface of the positive electrode active material or the positive electrode mixture layer is coated with polyvalent organic metal salt, particularly preferably with fluorine-containing polyvalent organic lithium salt. | 11-29-2012 |
| 20110052984 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY CELL, METHOD OF MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY CELL - A negative electrode for a nonaqueous electrolyte secondary cell, includes: a negative electrode active material layer containing a negative electrode active material, a polyvinylidene fluoride component including polyvinylidene fluoride and/or a derivative having polyvinylidene fluoride as a main chain, a styrene-butadiene component including a styrene-butadiene polymer and/or a derivative having a styrene-butadiene polymer as a main chain, a nonionic surfactant having an HLB of 10 to 15, and N-methylpyrrolidone; and a foil-shaped negative electrode current collector provided with the negative electrode active material layer on at least one principal surface of the collector. | 03-03-2011 |
| 20120045692 | Electrical Appliance - An object is to increase the conductivity of an electrode including active material particles and the like, which is used for a battery. Two-dimensional carbon including 1 to 10 graphenes is used as a conduction auxiliary agent, instead of a conventionally used conduction auxiliary agent extending only one-dimensionally at most, such as graphite particles, acetylene black, or carbon fibers. A conduction auxiliary agent extending two-dimensionally has higher probability of being in contact with active material particles or other conduction auxiliary agents, so that the conductivity can be improved. | 02-23-2012 |
| 20120064406 | ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, AND LITHIUM ION SECONDARY BATTERY - Secondary batteries for automobiles require good input/output characteristics and low internal resistance. Conventionally, the surface of an active material is coated with metal particles to reduce the internal resistance of a battery, but without achieving remarkable improvement in the conductivity of the active material or decreasing the internal resistance of the battery since an oxide film is formed on the metal particle surfaces. The present electrode material is produced by mixing and dispersing an active material and a metal source compound, then depositing metal particles on the surface of the active material by thermal decomposition, vapor phase reduction, liquid phase reduction or a chemical reaction combining any of these. Since an oxide film is not formed on the metal particles, an electrode material having high conductivity is obtained. The electrode material decreases the internal resistance of a battery and improves the input/output characteristics of a battery. | 03-15-2012 |
| 20120208086 | PROCESS FOR COATING FINE PARTICLES WITH CONDUCTIVE POLYMERS - A process for coating fine particles, in which the feed mixture contains: a monomer and/or an oligomer of aromatic compounds or unsaturated hydrocarbon compounds suitable for forming an electroconductive oligomer, polymer, copolymer, block copolymer or graft copolymer; at least one type of anions which (1) are and/or can be incorporated as doping ions into the structure of the conductive polymer; (2) can be discharged from said structure in the event of a potential fall of the conductive polymer (reduction); and (3) can have an anti-corrosive effect in the presence of a metallic surface; at least one type of particles; if necessary, at least one oxidising agent and water and/or at least another solvent. A coating is formed from the feed mixture on the particle surface, the feed mixture being converted by oxidation into a conductive polymer in the presence of at least one type a of mobile anti-corrosive anion. | 08-16-2012 |
| 20120064405 | POSITIVE ACTIVE MATERIAL COMPOSITION AND POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME - Disclosed are a positive active material composition for an electrochemical device, a positive electrode, and an electrochemical device including the same. The positive active material composition includes: a carbon-based additive including a hydroxyl group (—OH) and an enol group (—C═C—OH) on the surface, having a peak area ratio (OH/C═COH) of a hydroxyl group peak area and an enol group peak area of an infrared spectroscopy (FT-IR) spectrum ranging from about 0.5 to about 10, having a specific surface area of about 50 m | 03-15-2012 |
| 20120121982 | Electrode Active Material, Electrode, And Electricity Storage Device - An electrode active material comprising a silicon-containing carbon-based composite material obtained by: preparing a cured product of (A) a silicon-free organic compound having a crosslinkable group, and (B) a silicon-containing compound capable of crosslinking the component (A); and baking the cured product in an inert gas or in a vacuum at 300 to 1,500° C.; an electrode comprising the electrode active material; and an electricity storage device comprising the electrode. The electrode active material has high reversible capacity and stable charge and discharge cycle characteristics, has little electrical potential loss when lithium is discharged, and furthermore, can be manufactured via a simple manufacturing process. Therefore, an electrode active material that is particularly suitable for an electrode of a lithium secondary battery can be provided, and an electricity storage device having an electrode comprising the electrode active material can also be provided. | 05-17-2012 |
| 20120121981 | Electrode Active Material, Electrode, And Electricity Storage Device - This invention relates to an electrode active material, an electrode containing the active material, and an electricity storage device including the electrode. The electrode active material comprises a silicon-containing carbon-based composite material obtained by preparing a uniform phase comprising at least (A) a crosslinkable composition that includes a silicon-containing compound having a crosslinkable group, and (B) a liquid or melt that does not participate in the crosslinking reaction of the crosslinkable composition; then crosslinking the component (A), causing phase-separation from the component (B) for obtaining silicon-containing crosslinked particles or a dispersion wherein the silicon-containing crosslinked particles are dispersed in the component (B); and then baking the silicon-containing crosslinked particles or the dispersion in an inert gas or in a vacuum at 300 to 1,500° C. The electrode active material is particularly suitable as an electrode of a lithium secondary battery, displays high reversible capacity and stable charge and discharge cycle characteristics, and is characterized by having little electrical potential loss when lithium is discharged. | 05-17-2012 |
| 20120171569 | CERAMIC MATERIAL - A method of manufacturing a composite material, the method comprising: (i) providing a ceramic powder comprising ceramic agglomerates, the agglomerates having an intra-agglomerate void volume space; (ii) providing a polymer; (iii) mixing the polymer with the ceramic powder to form a mixture comprising the agglomerates at least partially impregnated with the polymer, wherein the volume of polymer in the mixture is at least 80% of the total intra-agglomerate void volume space, but less than 130% of the total intra-agglomerate void volume space; (iv) optionally shaping the mixture to form a preform; (v) and treating the mixture to provide ceramic agglomerates which are at least partially impregnated with solid polymer. | 07-05-2012 |
| 20120251880 | LITHIUM ION STORAGE DEVICE - There is provided a lithium ion storage device including a positive electrode having a positive electrode active material that is a lithium-containing compound and is capable of absorbing and desorbing lithium ions, and a negative electrode having a negative electrode active material capable of absorbing and desorbing lithium ions. The irreversible capacity of the positive electrode active material that is a capacity at which lithium ions cannot be reabsorbed after being desorbed from the positive electrode active material is 6% to 40% of a usage capacity of the negative electrode that is a capacity at which lithium ions are reversibly absorbed and desorbed by the negative electrode active material. | 10-04-2012 |
| 20100047688 | PHENANTHRENEQUINONE COMPOUND, ELECTRODE ACTIVE MATERIAL, AND POWER STORAGE DEVICE - Disclosed is a novel organic compound synthesized by oligomerizing or polymerizing a specific quinone compound having two quinone groups at the ortho position and having a property such that the electron transfer occurs associated with a reversible redox reaction, the organic compound being insoluble in an organic solvent and having a high energy density, and thus being useful as an electrode active material for a power storage device. Using this organic compound as an electrode active material can improve the energy density, reduce the weight and size, and improve the functionality of the power storage device. | 02-25-2010 |
| 20100273051 | COMPOSITE ELECTRODE AND METHOD FOR MANUFACTURING THE SAME - A composite electrode and a method for manufacturing the same are disclosed. By using a composite electrode that includes a porous support made of ceramic or metal and a conductive polymer or a metal oxide formed on a surface of the porous support, a capacitor or secondary cell that provides increased charge/discharge capacity and increased energy/output density, as well as high-temperature stability and high reliability, can be manufactured. | 10-28-2010 |
| 20100009256 | POLYRADICAL COMPOUND-CONDUCTIVE MATERIAL COMPOSITE, METHOD FOR PRODUCING THE SAME, AND BATTERY USING THE SAME - Disclosed is a composite body of an electrode active material and a conductivity-imparting agent, which has high capacity density and enables to take out a large current. Also disclosed are a method for producing such a composite body, and a battery having high energy density and a large output power. Specifically, a polyradical compound as an electrode active material and a conductive material are heated and mixed at a temperature not less than the softening temperature but less than the decomposition temperature of the polyradical compound, thereby for forming a composite body of the polyradical compound and the conductive material. By producing an electrode using such a composite body, there can be obtained a novel battery having high energy density and large output power. | 01-14-2010 |
| 20120258360 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - A negative electrode for a lithium secondary battery includes a negative-electrode active material having a specific surface area of Sx (m | 10-11-2012 |
| 20090017379 | SECONDARY BATTERY, POWER SUPPLY SYSTEM USING SAME AND USAGE OF POWER SUPPLY SYSTEM - A secondary battery is equipped with a reaction container and a current collector that is built in at least one of a positive electrode side and a negative electrode side. The positive electrode side and the negative electrode side are separated from each other by an ion conductive separator. In the reaction container, an organic matter excluding a metal complex and a radical and capable of reversibly being electrochemically oxidized and reduced is used as an active material together with a supporting salt. The active material and the supporting salt form a liquid. On the surface of the current collector, the active material contained in the liquid is charged and discharged. | 01-15-2009 |
| 20120231335 | CATHODE ACTIVE MATERIAL, CATHODE THEREWITH AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The invention provides a cathode active material that includes: a particle containing a cathode material capable of absorbing and releasing an electrode reactive material; and a film that is disposed at least partially to the particle and contains a metal salt represented by a formula (1). | 09-13-2012 |
| 20120328944 | ELECTRODE AND ELECTRICITY STORAGE DEVICE - An electrode of the present invention includes: an electrically conductive support ( | 12-27-2012 |
| 20120264016 | METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE SUBSTANCE, AND USE OF SAID ACTIVE SUBSTANCE - A method of producing a positive electrode active substance comprising steps of:
| 10-18-2012 |
| 20120276450 | SURFACE MODIFICATION AGENTS FOR LITHIUM BATTERIES - A method includes modifying a surface of an electrode active material including providing a solution or a suspension of a surface modification agent; providing the electrode active material; preparing a slurry of the solution or suspension of the surface modification agent, the electrode active material, a polymeric binder, and a conductive filler; casting the slurry in a metallic current collector; and drying the cast slurry. | 11-01-2012 |
| 20110274970 | NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY - A negative active material containing super-conductive nanoparticles coated with a high capacity negative material and a lithium battery including the same are provided, wherein the super-conductive nanoparticles have a structure in which polycyclic nano-sheets are stacked upon one another along a direction perpendicular to a first plane. The polycyclic nano-sheets include hexagonal rings of six carbons atoms linked to each other, wherein a first carbon and a second carbon have a distance therebetween of L | 11-10-2011 |
| 20120288762 | GRAPHENE-COATED PYROLYTIC CARBON STRUCTURES, METHODS OF MAKING, AND METHODS OF USE THEREOF - Embodiments of the present disclosure provide for flexible graphene-coated pyrolytic carbon materials or structures, methods of making, methods of use, materials including the graphene-coated pyrolytic carbon material or structure, structures including the graphene-coated pyrolytic carbon material or structure, and the like. | 11-15-2012 |
| 20130017445 | DEGRADABLE IMPLANTABLE BATTERYAANM Hodgkinson; Gerald N.AACI GuilfordAAST CTAACO USAAGP Hodgkinson; Gerald N. Guilford CT USAANM Powers; WilliamAACI CheshireAAST CTAACO USAAGP Powers; William Cheshire CT USAANM Hadba; Ahmad RobertAACI MiddlefieldAAST CTAACO USAAGP Hadba; Ahmad Robert Middlefield CT US - A biodegradable battery is provided. The battery includes an anode comprising a material including an inner surface and an outer surface, wherein electrochemical oxidation of the anode material results in the formation of a reaction product that is substantially non-toxic and a cathode comprising a material including an inner surface and an outer surface, the inner surface of the cathode being in direct physical contact with the inner surface of the anode, wherein electrochemical reduction of the cathode material results in the formation of a reaction product that is substantially non-toxic, and wherein the cathode material presents a larger standard reduction potential than the anode material. | 01-17-2013 |
