| Entries |
| Document | Title | Date |
|---|
| 20080226985 | ELECTROCHEMICAL CELL - An electrochemical cell containing, as an electrode active material, a polyphenylquinoxaline compound represented by formula 1: | 09-18-2008 |
| 20080233477 | POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY USING THE SAME - According to a positive electrode for a lithium ion secondary battery comprising a current collector and a mixture layer containing a transition metal-containing complex oxide as a positive electrode active material formed on the current collector, wherein the mixture layer has surface roughness of 0.1 μm or more and 0.5 μm or less in terms of a Ra value and the mixture layer has a surface treated layer treated with a coupling agent on the surface, it is possible to obtain a positive electrode which is excellent in suppression of moisture absorption. By using the positive electrode, it is possible to obtain a lithium ion secondary battery which is excellent in storage characteristics and causes less battery swelling since the amount of a gas generated upon charging and discharging decreases. | 09-25-2008 |
| 20080299456 | NON-AQUEOUS AIR BATTERY AND CATALYST THEREFOR - A non-aqueous air battery of the present invention includes a negative electrode for which a material which absorbs and releases lithium ions is used as a negative electrode active material, a positive electrode for which oxygen is used as a positive electrode active material, and a non-aqueous electrolyte disposed between the negative electrode and the positive electrode. The positive electrode contains a donor-acceptor molecule in which an electron-donating donor (D) having a porphyrin ring is connected to an electron-accepting acceptor (A) composed of a fullerene derivative, with a conductive spacer therebetween. An example of the donor-acceptor molecule is triphenylporphyrinyl bithienyl N-methylpyrrolidino[60]fullerene. | 12-04-2008 |
| 20090017378 | COATED METAL OXIDE PARTICLES WITH LOW DISSOLUTION RATE, METHODS FOR PREPARING SAME AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS - Particles comprising a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a soiled polymer with high electrochemical stability. The particle has a solubility rate (ts), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated. | 01-15-2009 |
| 20090123838 | CATHODE SUBSTRATE - A cathode substrate which enables achievement of a battery having a high output voltage and a high energy density, and being superior in charge and discharge cycle characteristics; a secondary cell in which the cathode substrate is used; a resin composition for use in forming the cathode substrate; and a method for producing the cathode substrate are provided. According to cathode substrate | 05-14-2009 |
| 20090136845 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode for a rechargeable lithium battery includes a current collector, and a negative active material layer on the current collector. The negative active material layer includes an interpenetrating network network, and a negative active material in the interpenetrating network network. The interpenetrating network is formed by cross-linking a first polymer having a hydroxyl or amine group and a second polymer having a carboxylic acid group. The negative electrode for a rechargeable lithium battery minimizes volume expansion and imparts good cycle-life characteristics and initial formation efficiency. | 05-28-2009 |
| 20090202905 | 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). | 08-13-2009 |
| 20090202906 | LITHIUM SECONDARY BATTERY - A negative electrode of a lithium secondary battery has a negative electrode active material including at least one element of silicon and tin. Capacities of the positive electrode and the negative electrode of the lithium secondary battery are set as follows. In a completely charged state of the lithium secondary battery charged by a predetermined charging method, the positive electrode active material and the negative electrode active material are in a first partially charged state, respectively. In a completely discharged state of the lithium secondary battery discharged by a predetermined discharging method, the negative electrode active material is in a second partially charged state. | 08-13-2009 |
| 20090220857 | CHEMICAL PROTECTION OF METAL SURFACE - An electrochemical cell includes an anode having a metal material having an oxygen containing layer. The electrochemical cell also includes a cathode and an electrolyte. The anode includes a protective layer formed by reacting a D or P block precursor with the oxygen containing layer. | 09-03-2009 |
| 20090246630 | Positive electrode for non-aqueous electrolyte battery and non-aqueous electrolyte battery - A positive electrode for a non-aqueous electrolyte battery includes a positive electrode active material layer containing at least a positive electrode active material and a binder and a coating layer containing a polymer provided on the positive electrode active material layer, wherein the polymer has a block chain A composed of a random copolymer containing a repeating unit (I) represented by formula (I), a repeating unit (II) represented by formula (II), and a block chain B containing a repeating unit (III) represented by formula (III) | 10-01-2009 |
| 20090280408 | NOVEL THIN FILM STRUCTURES - A thin film structure, method of producing it and the use thereof. The thin film structure comprises a substrate with a thin conductive layer containing an oxidizing enzyme mixed with an electron transfer mediator. The thin layer is protected against wetting to allow for its storage in dry conditions and further being sufficiently porous to allow for immediate activation of the oxidizing enzyme when contacted with an aqueous solution. The thin film can be used as a cathode in electrochemical fuel cells. | 11-12-2009 |
| 20090317718 | Method of manufacturing positive electrode for non-aqueous electrolyte battery, slurry used therefor, and non-aqueous electrolyte battery - A method of manufacturing a positive electrode for a non-aqueous electrolyte battery is provided. The positive electrode has a current collector and an active material layer formed on the current collector. The method includes: coating a slurry onto the current collector, the slurry having a pH of from 5 to 9 and containing a positive electrode active material, water as a dispersion medium, carboxymethylcellulose, and a pH adjuster; and drying the coated slurry to form the active material layer. | 12-24-2009 |
| 20100068621 | NANOTUBE WIRING - This invention concerns a novel method for surface derivatization of electrode materials for Li-ion batteries. The derivatization is based on adsorption of a composite assembly consisting of amphiphilic redox active molecule attached to single walled carbon nanotube (SWCNT). Its role consists in the enhancement of electronic conductivity of electrode materials, such as phosphate olivines, without requesting any significant increase of the electrode volume and mass. The SWCNT is linked to the redox molecule via non-covalent or covalent interaction with the hydrophobic part of the molecule or electrostatic interaction. The hydrophilic part of the molecule serves as the anchoring site for surface modification of the electrode active material. The redox potential of the molecule is close to the redox potential of the electrode active material. The adsorbed assembly of redox-molecule & SWCNT thus improves the charge transfer from a current collector to the electrode active material. | 03-18-2010 |
| 20100075225 | Nanocomposite electrodes and related devices - A nanocomposite electrode that includes a current collector, an electroactive layer a conductive adhesive contacting the surface of the current collector and an interlayer region in electrical communication with the current collector and the electroactive material. The interlayer region is interposed between the current collector and the electroactive layer and includes a portion of the conductive adhesive intermixed with a portion of the electroactive layer. The electroactive layer includes electroactive material having a surface area of at least about 10 m | 03-25-2010 |
| 20100092864 | NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY BOTH EMPLOYING THE SAME - A negative-electrode active material for a lithium ion secondary battery, which is capable of storing/releasing lithium ions, wherein the negative-electrode active material is obtained by crosslinking a surface functional group of a raw material for negative electrode; a process for producing the negative-electrode active material; and a negative electrode for a lithium ion secondary battery and a lithium ion secondary battery both employing the negative-electrode active material. According to the invention, a negative-electrode active material for a lithium ion secondary battery can be provided which facilitates electrode production and gives a battery reduced in irreversible capacity in charge/discharge. | 04-15-2010 |
| 20100099026 | ELECTRODE INK COMPOSITION FOR INK-JET PRINTING, AND ELECTRODE AND SECONDARY BATTERY MANUFACTURED BY USING THE SAME - An electrode ink composition for ink-jet printing and an electrode and secondary battery manufactured by ink-jet printing the electrode ink composition. The electrode ink composition includes an electrode active material and a solvent. A fine electrode pattern is formed by ink-jet printing the electrode ink composition, and thus a thin micro secondary battery can be manufactured. | 04-22-2010 |
| 20100112439 | TREATED ACTIVE MATERIAL, METHOD FOR TREATING THEREOF, AND PASTE CONTAINING THE TREATED ACTIVE MATERIAL - At least one organic molecular chain is strongly bonded to a surface of active material. By using a treated active material in which at least one organic molecular chain is strongly bonded to a surface of active material, it is possible to maintain a charge-discharge characteristic of a secondary battery or the like at a good level over a long period. A treated material | 05-06-2010 |
| 20100119939 | NEGATIVE ELECTRODE BASE MEMBER - The present invention aims to realize a battery having high output voltage, high energy density and excellent charge and discharge cycle characteristics through a constitution different from those of conventional batteries. Specifically, one of the following negative electrode base members is used as a negative electrode base member for lithium ion secondary batteries: a negative electrode base member wherein a metal film is formed on a support having an organic film; such a negative electrode base member wherein the surface layer of the organic film is covered with a metal oxide film; a negative electrode base member wherein a metal film is formed on a support having a composite film formed from a composite film-forming material containing an organic component and an inorganic component; and a negative electrode base member wherein a silica coating is formed, on a support having a photoresist pattern, from a silica film-forming coating liquid and a metal film is formed on the support after removing the photoresist pattern. | 05-13-2010 |
| 20100119940 | SECONDARY BATTERY - A secondary battery having a positive electrode, negative electrode, and a separator, wherein at least one of the positive electrode and the negative electrode is formed of: a charge collector having resin as a core, and a metal layer; and an electrode active material on the metal layer, the metal layer of the charge collector is formed on one surface of the resin, and the charge collector is folded at least once. | 05-13-2010 |
| 20100143798 | Nano graphene reinforced nanocomposite particles for lithium battery electrodes - A solid nanocomposite particle composition for lithium metal or lithium ion battery electrode applications. The composition comprises: (A) an electrode active material in a form of fine particles, rods, wires, fibers, or tubes with a dimension smaller than 1 μm; (B) nano graphene platelets (NGPs); and (C) a protective matrix material reinforced by the NGPs; wherein the graphene platelets and the electrode active material are dispersed in the matrix material and the NGPs occupy a weight fraction w | 06-10-2010 |
| 20100167124 | Organic/Inorganic Composite Electrolyte and Electrochemical Device Prepared Thereby - Disclosed is an electrode whose surface includes an organic/inorganic composite porous coating layer comprising porous inorganic particles and a binder polymer, wherein the porous inorganic particles have pores having such a size that lithium ions (Li+) solvated in an electrolyte solvent can pass therethrough. A method for manufacturing the electrode and an electrochemical device using the electrode are also disclosed. The organic/inorganic composite porous coating layer formed on the electrode according to the present invention provides an additional pathway for lithium ion conduction due to a plurality of pore structures present in the porous inorganic particles. Thus, when the organic/inorganic composite porous coating layer is used instead of a conventional polymer-based separator in a battery, the battery can provide improved quality and an increased energy density per unit weight due to a reduced weight of the organic/inorganic composite porous coating layer. | 07-01-2010 |
| 20100196759 | ELECTRODE FOR ELECTROCHEMICAL ENERGY STORAGE DEVICE - The present invention relates to an electrode for an electrochemical energy storage device. The electrode comprises a nano-structured hollow carbonaceous material and the nano-structured hollow carbonaceous material preferably meets a requirement (A). (A) the nano-structured hollow carbonaceous material has a carbonaceous material portion and a hollow portion, and has such a structure that the hollow portion is covered with the carbonaceous material portion in a saclike shape, a part of the structure, or an aggregate of the structure. | 08-05-2010 |
| 20100216022 | ELECTRODE, METHOD OF MANUFACTURING ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY - An electrode which can improve the cycle characteristic of a lithium-ion secondary battery is provided. The electrode of the present invention comprises a current collector and an active material layer, formed on the current collector, containing an active material and polybenzimidazole. | 08-26-2010 |
| 20100233537 | Triazine Containing Electrode Materials for Secondary Batteries - The invention relates to a stable secondary battery utilizing as active element the oxidation and reduction cycle of a sterically hindered nitroxide radical, which is bonded to a triazine structural element. Further aspects of the invention are a method for providing such a secondary battery, the use of the respective compounds as active elements in secondary batteries and selected novel nitroxide compounds as such. | 09-16-2010 |
| 20100261057 | NEGATIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein the negative electrode has a negative electrode mixture layer including a negative electrode active material; a polymer containing vinylidene fluoride as a repeating unit; a polymer containing acrylonitrile as a repeating unit; and a vapor-grown carbon fiber; and the nonaqueous electrolyte contains a fluorocarbon based polymer compound. | 10-14-2010 |
| 20100261058 | COMPOSITE MATERIALS CONTAINING METALLIZED CARBON NANOTUBES AND NANOFIBERS - A method and apparatus are provided for the cost effective formation of a composite material which includes metallized carbon nanotubes and/or nanofibers that can be used to form portions of an energy storage device, such as a lithium ion battery. In one embodiment, carbon nanotubes are formed on a host substrate using a catalytic chemical vapor deposition process. An initiation-adhesion layer is formed over the carbon nanotubes and a metallic layer is then deposited on the initiation-adhesion layer and each layer is formed using a wet deposition process. In one embodiment, portions of the host substrate are used to form an electrochemical storage device that may be integrated with other formed electrochemical storage devices to create an interconnected battery array. The battery array may be formed as a woven sheet, panel, or other flexible structure depending upon the type of host substrate material. In one case, the host substrate material may be a flexible fibrous material that has multiple layers formed thereon to form a fiber battery, such as a lithium ion battery. | 10-14-2010 |
| 20100285357 | Li-ION BATTERY WITH OVER-CHARGE/OVER-DISCHARGE FAILSAFE - An electrochemical cell in one embodiment includes a negative electrode including a form of lithium, a positive electrode spaced apart from the negative electrode, a separator positioned between the negative electrode and the positive electrode, an active material in the positive electrode including a form of lithium, and a gas neutralizing additive. | 11-11-2010 |
| 20100291438 | ELECTRODE MATERIAL, LITHIUM-ION BATTERY AND METHOD THEREOF - The invention provides an anode comprising a nanocomposite of graphene-oxide and a silicon-based polymer matrix. The anode exhibits a high energy density such as ˜800 mAhg | 11-18-2010 |
| 20110027649 | POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - The present invention provides a positive electrode ( | 02-03-2011 |
| 20110033747 | CARBON FIBER ZINC NEGATIVE ELECTRODE - The conductivity of a zinc negative electrode is enhanced through use of surfactant-coated carbon fibers. Carbon fibers, along with other active materials such as bismuth oxide, zinc etc., form an electronically conductive matrix in zinc negative electrodes. Zinc negative electrodes as described herein are particularly useful in nickel zinc secondary batteries. | 02-10-2011 |
| 20110045349 | 3D APPROACH ON BATTERY AND SUPERCAPACITOR FABRICATION BY INITIATION CHEMICAL VAPOR DEPOSITION TECHNIQUES - Methods and apparatus for forming energy storage devices are provided. In one embodiment a method of producing an energy storage device is provided. The method comprises positioning an anodic current collector into a processing region, depositing one or more three-dimensional electrodes separated by a finite distance on a surface of the anodic current collector such that portions of the surface of the anodic current collector remain exposed, depositing a conformal polymeric layer over the anodic current collector and the one or more three-dimensional electrodes using iCVD techniques comprising flowing a gaseous monomer into the processing region, flowing a gaseous initiator into the processing region through a heated filament to form a reactive gas mixture of the gaseous monomer and the gaseous initiator, wherein the heated filament is heated to a temperature between about 300° C. and about 600° C., and depositing a conformal layer of cathodic material over the conformal polymeric layer. | 02-24-2011 |
| 20110052983 | NEGATIVE ELECTRODE FOR ALKALINE STORAGE BATTERY AND ALKALINE STORAGE BATTERY - An alkaline storage battery having a positive electrode (1), a negative electrode (2), and an alkaline electrolyte solution, and the negative electrode having fluorinated oil being present on the surface thereof. The negative electrode includes a hydrogen-absorbing alloy represented by the general formula Ln | 03-03-2011 |
| 20110059360 | SURFACE AGENT HAVING DISCHARGE FUNCTION AND BATTER USING THE SAME - The surface agent contains a grounding layer, two nucleic acid molecular layers, a partitioning grid layer, a silver circuit layer, and two insulating layers. The grounding layer is made of carbon and metallic materials such as aluminum, copper, and is connected to the negative electrode of a rechargeable battery. The silver circuit layer is connected to the positive electrode. The nucleic acid molecular layers are positioned between the silver circuit and grounding layers and the partitioning grid layer is sandwiched therebetween. The nucleic acid molecules are produced by mixing ferric oxide extracted from mulberry fruit and acetate. As the ferric oxide is a bad conductor capable of carrying charges, electricity would suffer more loss as it is conducted through the bad conductor. As such, the rechargeable battery could be continuously discharged, and the memory effect is therefore avoided to maintain the rechargeable battery's capacity. | 03-10-2011 |
| 20110065000 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, including lithium transition metal oxide, where the lithium transition metal oxide is coated with carbon particles and a polymer resin at a surface thereof, and the polymer resin is a substance inactivated by an electrolyte for a lithium secondary battery and an organic solvent and has a melting point of at least 80° C. | 03-17-2011 |
| 20110076559 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode for a non-aqueous electrolyte secondary battery, having an active material layer containing a positive electrode active material and an inorganic particle layer provided on a surface of the active material layer. The inorganic particle contains inorganic particles, a polyvinyl pyrrolidone, and an aqueous binder. | 03-31-2011 |
| 20110123863 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A positive electrode and a rechargeable lithium battery including the same, the positive electrode including a current collector and a positive active material layer disposed on the current collector. The positive active material layer includes a positive active material and a binder including an ion conductive polymer including a carboxylate group. | 05-26-2011 |
| 20110151325 | Cathode active material, cathode including the cathode active material, lithium battery including the cathode, and method of preparing the cathode active material - A cathode active material, a cathode including the cathode active material, a lithium battery including the cathode, and a method of preparing the cathode active material, the cathode active material including a lithium-containing metal oxide and an organic material coated on the lithium-containing metal oxide, the organic material including an acrylate or methacrylate organic material including an alkyleneglycol unit. | 06-23-2011 |
| 20110171525 | ELECTRODE FOR LITHIUM SECONDARY BATTERY - Disclosed are an electrode for a lithium secondary battery which includes a metal substrate and a plated layer arranged on the metal substrate and bearing active material particles and resin particles embedded therein, in which a part of the active material particles and the resin particles has a protruding portion beyond the plated layer; and a lithium secondary battery using the electrode. | 07-14-2011 |
| 20110183202 | Negative Electrode Active Material Containing Nanometal Particles and Super-Conductive Nanoparticles and Lithium Battery Comprising the Negative Electrode Active Material - A negative electrode active material including nanometal particles and super-conductive nanoparticles and a lithium battery including the same. | 07-28-2011 |
| 20110223479 | Positive electrode for non-aqueous electrolyte battery and non-aqueous electrolyte battery - A positive electrode for non-aqueous electrolyte battery includes a positive electrode active material layer containing at least a positive electrode active material and a binder and a coating layer containing a polymer provided on the positive electrode active material layer, wherein the polymer has a block chain A composed of a random copolymer containing a repeating unit (I) represented by formula (I) and a repeating unit (II) represented by formula (II) and a block chain B containing a repeating unit (III) represented by formula (III) | 09-15-2011 |
| 20110300442 | NOVEL NANOSCALE SOLUTION METHOD FOR SYNTHESIZING LITHIUM CATHODE ACTIVE MATERIALS - The present invention relates to a solution based method for preparing an nano scale electroactive metal polyanion or a mixed metal polyanion comprising reacting metal sulfate—M(SO | 12-08-2011 |
| 20120077084 | LITHIUM BATTERY WITH CHARGING REDOX COUPLE - In accordance with one embodiment, an electrochemical cell includes a negative electrode including a form of lithium, a positive electrode spaced apart from the negative electrode and including an electron conducting matrix, a separator positioned between the negative electrode and the positive electrode, an electrolyte including a salt, and a charging redox couple located within the positive electrode, wherein the electrochemical cell is characterized by the transfer of electrons from a discharge product located in the positive electrode to the electron conducting matrix by the charging redox couple during a charge cycle. | 03-29-2012 |
| 20120077085 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERYAND NON-AQUEOUS ELECTROLYTE BATTERY - A positive electrode for non-aqueous electrolyte battery includes a positive electrode active material layer containing at least a positive electrode active material and a binder and a coating layer containing a polymer provided on the positive electrode active material layer, wherein the polymer has a block chain A composed of a random copolymer containing a repeating unit (I) represented by formula (I) and a repeating unit (II) represented by formula (II) and a block chain B containing a repeating unit (III) represented by formula (III) | 03-29-2012 |
| 20120077086 | SURFACE AGENT HAVING DISCHARGE FUNCTION AND BATTERY USING THE SAME - The surface agent contains a grounding layer, two nucleic acid molecular layers, a partitioning grid layer, a silver circuit layer, and two insulating layers. The grounding layer is made of carbon and metallic materials such as aluminum, copper, and is connected to the negative electrode of a rechargeable battery The silver circuit layer is connected to the positive electrode. The nucleic acid molecular layers are positioned between the silver circuit and grounding layers and the partitioning grid layer is sandwiched therebetween. The nucleic acid molecules are produced by mixing ferric oxide extracted from mulberry fruit and acetate. As the ferric oxide is a bad conductor capable of carrying charges, electricity would suffer more loss as it is conducted through the bad conductor. As such, the rechargeable battery could be continuously discharged, and the memory effect is therefore avoided to maintain the rechargeable battery's capacity. | 03-29-2012 |
| 20120183852 | NEGATIVE ELECTRODE, NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE NEGATIVE ELECTRODE, AND LITHIUM BATTERY INCLUDING THE NEGATIVE ELECTRODE - A negative electrode including: a current collector; a negative active material layer formed on the current collector; and a polymer coating layer that is formed on the negative active material layer and comprises a fluorinated acrylate type polymer. | 07-19-2012 |
| 20120183853 | Positive Active Material for Rechargeable Lithium Battery, Method of Manufacturing the Same and Rechargeable Lithium Battery Using the Same - A positive active material for a rechargeable lithium battery includes a positive active material compound including a metal compound for intercalating and deintercalating lithium, a coating particle having an embedded portion embedded into the active material compound and a protruding portion protruding from the surface of the active material, and a rechargeable lithium battery including the positive active material. | 07-19-2012 |
| 20120244436 | ANODES OF POROUS SILICON PARTICLES - The present invention provides anode materials, methods of producing them, electrochemical cells, and lithium-ion batteries, where the anode material comprises porous silicon and carboxymethyl cellulose. In certain embodiments, the porous silica additionally comprises other materials, such as styrene-butadiene rubber. | 09-27-2012 |
| 20120270104 | Double-Shell Core Lithium Nickel Manganese Cobalt Oxides - A lithium transition metal oxide powder for use in a rechargeable battery is disclosed, where the surface of the primary particles of said powder is coated with a first inner and a second outer layer, the second outer layer comprising a fluorine-containing polymer, and the first inner layer consisting of a reaction product of the fluorine-containing polymer and the primary particle surface. An example of this reaction product is LiF, where the lithium originates from the primary particles surface. Also as an example, the fluorine-containing polymer is either one of PVDF, PVDF-HFP or PTFE. Examples of the lithium transition metal oxide are either one of —LiCO | 10-25-2012 |
| 20120276449 | LITHIUM ANODES FOR ELECTROCHEMICAL CELLS - Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur. | 11-01-2012 |
| 20120288761 | ELECTRODE ADDITIVES COATED WITH ELECTRO CONDUCTIVE MATERIAL AND LITHIUM SECONDARY COMPRISING THE SAME - Provided are an electrode additive coated with a coating material made of electrically conductive materials such as metal hydroxides, metal oxides or metal carbonates, and an electrode and a lithium secondary battery comprising the same. The electrode additive in accordance with the present invention can improve high temperature storage characteristics of the battery, without deterioration of performance thereof. | 11-15-2012 |
| 20130011736 | TEMPLATE ELECTRODE STRUCTURES WITH ENHANCED ADHESION CHARACTERISTICS - Provided herein are novel template electrode materials and structures for lithium ion cells. Related methods are also provided. According to various embodiments, an electrode can include a nanostructured template, an electrochemically active material layer coating the template, and a first intermediate layer between the nanostructured template and the electrochemically active material layer. In one arrangement, the nanostructured template includes silicide nanowires. The electrochemically active material may be any of silicon, tin, germanium, carbon, metal hydrides, silicides, phosphides, and nitrides. The first intermediate layer may facilitate adhesion between the nanostructured template and the electrochemically active material layer, electronic conductivity within the electrode, and/or stress relaxation between the nanostructured template and the electrochemically active material layer. | 01-10-2013 |
| 20130065125 | ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND LITHIUM ION SECONDARY BATTERY - The electrode for a lithium ion secondary battery of the present invention has an electrode mixture layer containing carbon nanotubes as a conductive auxiliary agent and deoxyribonucleic acid as a dispersant for the carbon nanotubes, and the content of the carbon nanotubes in the electrode mixture layer is 0.001 to 5 parts by mass with respect to 100 parts by mass of active material particles. The lithium ion secondary battery of the present invention has the electrode of the invention as its positive electrode and/or negative electrode. The electrode of the invention can be produced by a producing method of the invention of forming the electrode mixture layer from an electrode mixture-containing composition prepared using a dispersion including carbon nanotubes and deoxyribonucleic acid. | 03-14-2013 |
| 20130065126 | Cathode for a Battery - An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material. | 03-14-2013 |
| 20130071741 | NEGATIVE ELECTRODE FOR SECONDARY BATTERY, AND PROCESS FOR PRODUCTION THEREOF - A negative electrode for a secondary battery according to the present invention has a collector and a negative electrode active material layer formed on a surface of the collector and containing negative electrode active material particles. In the negative electrode active material layer, an insulating material is arranged between the negative electrode active material particles so as not to develop conductivity by a percolation path throughout the negative electrode active material layer. It is possible in this configuration to effectively prevent the occurrence of a short-circuit current due to an internal short circuit and the generation of heat due to such short-circuit current flow in the secondary battery while securing the battery performance of the secondary battery. | 03-21-2013 |
| 20130078515 | ELECTRONIC BATTERY WITH NANO-COMPOSITE - A supercapacitor-like electronic battery exhibits a conventional electrochemical capacitor structure with a first nanocomposite electrode positioned within said conventional electrochemical capacitor structure. Said nanocomposite electrode shows nano-scale conductive particles dispersed in a electrolyte matrix, said nano-scale conductive particles being coated with a designed and functionalized organic or organometallic compound. A second nanocomposite electrode is positioned within said conventional electrochemical capacitor structure with similar properties. An electrolyte within said conventional electrochemical capacitor structure separates said first from said second nanocomposite electrode. Two current collectors in communication with said first and second nanocomposite electrode complete the electric scheme. A method for fabricating a capacitor includes forming conductive or semiconducting nanoparticles and reacting said nanoparticles with a first designed and functionalized organic or organometallic compound, said reaction forming an organic or organometallic shell surrounding each of said nanoparticles. Said treated nanoparticles are being dispersed into an electrolyte matrix to form a nanocomposite electrode. | 03-28-2013 |
| 20130095383 | NEW PHOSPHATE-AND SILICATE-BASED ELECTRODE MATERIALS, MORE PARTICULARLY FOR LITHIUM ION BATTERIES AND LITHIUM CAPACITORS - The invention relates to the use of new crystalline phosphate- and silicate-based electrode materials, preferably having a hopeite or zeolite lattice structure, which are suitable more particularly for lithium ion batteries and lithium capacitors based on non-aqueous systems. The structure of the inventively used electrode material comprises at least a) 2 to 193 atom % of structure-forming ions M in the form of a lattice structure comprising (MX | 04-18-2013 |
| 20130130108 | ADHESION OF ACTIVE ELECTRODE MATERIALS TO METAL ELECTRODE SUBSTRATES - A battery electrode for a lithium ion battery that includes an electrically conductive substrate having an electrode layer applied thereto. The electrode layer includes an organic material having high alkalinity, or an organic material which can be dissolved in organic solvents, or an organic material having an imide group(s) and aminoacetal group(s), or an organic material that chelates with or bonds with a metal substrate or that chelates with or bonds with an active material in the electrode layer. The organic material may be guanidine carbonate. | 05-23-2013 |
| 20130164615 | CONDUCTIVE POLYMER-COATED, SHAPED SULFUR-NANOCOMPOSITE CATHODES FOR RECHARGEABLE LITHIUM-SULFUR BATTERIES AND METHODS OF MAKING THE SAME - The present disclosure relates to a nanocomposite comprising shaped sulfur and a polymer layer coating the shaped sulfur. An alternative embodiment of the disclosure provides a method of synthesizing a nanocomposite. This method comprises forming a shaped sulfur. This may include preparing an aqueous solution of a sulfur-based ion and a micelle-forming agent, and adding a nucleating agent. The method further includes coating the shaped sulfur with a polymer layer. Another embodiment of the disclosure provides a cathode comprising nanocomposites of the present disclosure, and batteries incorporating such cathodes. | 06-27-2013 |
| 20130164616 | METAL OXYGEN BATTERY - There is provided a metal oxygen battery which uses an oxygen-storing material containing YMnO | 06-27-2013 |
| 20130177805 | ELECTROCHEMICAL GENERATOR AND METHOD OF PRODUCING SUCH A GENERATOR - An electrochemical generator includes a first electrode covered by a passivation layer having a compound formed by repetition of a pattern of the following formula (7): | 07-11-2013 |
| 20130177806 | Cathode for a Battery - An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material. | 07-11-2013 |
| 20130183582 | LITHIUM ION BATTERY - A lithium ion battery includes a positive electrode, a negative electrode, a microporous polymer separator disposed between the negative electrode and the positive electrode, and a polymer having a chelating agent tethered thereto. The polymer is incorporated into the lithium ion battery such that the chelating agent complexes with metal cations in a manner sufficient to not affect movement of lithium ions across the microporous polymer separator during operation of the lithium ion battery. | 07-18-2013 |
| 20130202962 | CONDUCTIVE POLYMER/POROUS CARBON MATERIAL COMPOSITE AND ELECTRODE MATERIAL USING SAME - The present invention provides: an electric double-layer capacitor, a lithium ion secondary battery, and a lithium ion capacitor, each having high electrostatic capacitance and excellent cycle characteristics; an electrode material capable of providing the electric double-layer capacitor, the lithium ion secondary battery, and the lithium ion capacitor; and a composite used in the electrode material. The composite of a conductive polymer has a nitrogen atom and a porous carbon material. The conductive polymer is bound to a surface of the porous carbon material. A total pore volume of all of the pores having a diameter of 0.5 to 100.0 nm measured by a BJH method is from 0.3 to 3.0 cm | 08-08-2013 |
| 20130236784 | SURFACE TREATMENT OF ELECTROCHEMICALLY ACTIVE MATERIALS FOR RECHARGEABLE CELLS - Provided herein are methods for processing electrochemically active materials and resulting active material structures for use in rechargeable batteries. The resulting active materials structures include carbon containing coatings that partially or completely cover the surface of the active material structures. In a typical embodiment, the method includes providing a solution of carbon containing precursor in a solvent, dispersing electrochemically active material in the solution to form a mixture, removing the solvent from the mixture to form electrochemically active material coated with the carbon containing precursor, and heating the electrochemically active material coated with the carbon containing precursor in an inert atmosphere at a temperature sufficient to at least partially convert the carbon containing precursor into a carbon coating. Also provided are an electrochemically active material prepared according to the methods described herein, as well as an electrode and a rechargeable electrochemical cell, each containing such electrochemically active material. | 09-12-2013 |
| 20130252095 | NON-AQUEOUS SECONDARY BATTERY - The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte and a separator. The positive electrode includes a positive electrode mixture layer containing a positive electrode active material, a conductive polymer, an organic silane compound, a conductive assistant and a binder, the conductive polymer is polythiophene or a derivative thereof, and the content of the conductive polymer is 0.05 to 0.5 mass % with respect to the total mass of the positive electrode mixture layer. | 09-26-2013 |
| 20130273422 | EX-SITU PRODUCTION OF A LITHIUM ANODE PROTECTIVE LAYER - In a method for producing an anode for a lithium cell, and/or a lithium cell as well as anodes and lithium cells of this type, to extend the service life of the lithium cell and to selectively form a first protective layer including electrolytic decomposition products, on an anode including metallic lithium, a first electrolyte is applied on the anode ex situ, i.e., prior to assembling the lithium cell to be produced. To stabilize the first protective layer, a second protective layer is applied in a subsequent method step. | 10-17-2013 |
| 20130280608 | ELECTRODE FOR LITHIUM SECONDARY BATTERY - Disclosed is a method for forming an electrode comprising a protective layer, which comprises: dispersing or dissolving an aliphatic nitrile compound into a solvent to provide a coating solution; coating a surface of the electrode with the coating solution, said electrode having an electrode active material coated thereon; and removing the solvent used in the coating solution by drying to form a protective layer comprising an aliphatic nitrile compound-electrode active material complex. | 10-24-2013 |
| 20130288125 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, RECHARGEABLE LITHIUM BATTERY INCLUDING SAME AND METHOD OF PREPARING RECHARGEABLE LITHIUM BATTERY - A positive electrode for a rechargeable lithium battery includes a positive active material, and a solid electrolyte interface (SEI) passivation film including an inorganic material and an organic material, the SEI passivation film having an average thickness of about 1 nm to about 20 nm on a surface of the electrode. | 10-31-2013 |
| 20130302677 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode active material comprising a lithium manganese composite oxide with a spinel structure represented by the following Formula 1, wherein the lithium manganese composite oxide is surface-coated with a conductive polymer in an area of 30 to 100%, based on the surface area of the lithium manganese composite oxide: | 11-14-2013 |
| 20140057168 | GROUP IVA FUNCTIONALIZED PARTICLES AND METHODS OF USE THEREOF - Disclosed herein are functionalized Group IVA particles, methods of preparing the Group IVA particles, and methods of using the Group IVA particles. The Group IVA particles may be passivated with at least one layer of material covering at least a portion of the particle. The layer of material may be a covalently bonded non-dielectric layer of material. The Group IVA particles may be used in various technologies, including lithium ion batteries and photovoltaic cells. | 02-27-2014 |
| 20140057169 | BATTERIES - A battery electrode comprising a porous polymeric material having at least a coating of an active material applied thereto. The battery electrode may be a 3-dimensional electrode. | 02-27-2014 |
| 20140079996 | METHOD FOR IMPROVING ENVIRONMENTAL STABILITY OF CATHODE MATERIALS FOR LITHIUM BATTERIES - A method for improving the environmental stability of cathode materials used in lithium-based batteries. Most currently used cathode active materials are acutely sensitive to environmental conditions, e.g. leading to moisture and CO.sub.2 pickup, that cause problems for material handling especially during electrode preparation and to gassing during charge and discharge cycles. Binder materials used for making cathodes, such as PVDF and PTFE, are mixed with and/or coated on the cathode materials to improve the environmental sensitivity of the cathode materials. | 03-20-2014 |
| 20140099545 | POSITIVE ACTIVE MATERIAL LAYER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY USING THE SAME - Disclosed are a positive active material layer composition for a rechargeable lithium battery including a positive active material including a lithium metal oxide and tungsten oxide (WO | 04-10-2014 |
| 20140113190 | LITHIUM METAL OXIDE COMPOSITE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A lithium metal oxide composite for a lithium secondary battery includes a core portion formed of a Mn metal compound and a shell portion formed of a three-component system metal compound at an outside of the core portion. A method of preparing a lithium metal oxide composite for a lithium secondary battery includes: mixing an Mn metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a first precursor; thermally treating the obtained first precursor; mixing the thermally treated first precursor with a three component system metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a second precursor; and mixing the obtained second precursor with a lithium-containing compound to synthesize a powder via a firing. | 04-24-2014 |
| 20140134488 | CHEMICAL PROTECTION OF METAL SURFACE - An electrochemical cell includes an anode having a metal material having an oxygen containing layer. The electrochemical cell also includes a cathode and an electrolyte. The anode includes a protective layer formed by reacting a D or P block precursor with the oxygen containing layer. | 05-15-2014 |
| 20140162121 | POWDER FOR CATHODE OF LITHIUM-SULFUR SECONDARY BATTERY AND METHOD OF FABRICATING THE SAME - Provided is powder for a cathode of a lithium-sulfur secondary battery that maximizes the utilization rate of sulfur by increasing the ratio of sulfur and an absolute content of sulfur, increases the capacity of the lithium-sulfur secondary battery and improves energy density and life-span characteristics, and a method of fabricating the same. The provided powder comprises a fibrous conductive material inserted in and penetrating a sulfur powder, a nano sized spherical conductive material coated on a surface of the sulfur powder to surround the surface of the sulfur powder, and a conductive polymer protective film is coated on an outer surface of the coated spherical conductive material layer. | 06-12-2014 |
| 20140162122 | COLLECTOR AND ELECTRODE STRUCTURE, NON-AQUEOUS ELECTROLYTE CELL, ELECTRICAL DOUBLE LAYER CAPACITOR, LITHIUM ION CAPACITOR, OR ELECTRICITY STORAGE COMPONENT USING SAME - An object of the present invention is to improve an adhesion between the surface of a conductive resin layer and an active material, which are provided to a current collector. Another object of the present invention is to improve a high rate characteristics or electrode lifetime of a non-aqueous electrolyte battery, an electrical double layer capacitor, a lithium ion capacitor and the like which uses the current collector. A current collector prepared by forming a resin layer possessing conductivity on a conductive substrate, is provided. A surface roughness Ra of the resin layer possessing conductivity is 0.1 μm or higher and 1.0 μm or lower. In addition, when a coating thickness of the resin layer possessing conductivity is taken as t [μm] and the average angle of inclination of the resin layer surface is taken as θa [degree], (⅓)t+0.5≦θa≦(⅓)t+10 is met. | 06-12-2014 |
| 20140212752 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery capable of improving a high rate discharge property while securing safety is provided. A laminated electrode group | 07-31-2014 |
| 20140248534 | LITHIUM ION SECONDARY BATTERY ELECTRODE, METHOD OF MANUFACTURING THE SAME, AND LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery electrode according to the present invention includes (A) a non-fluorinated polymer; (B) an active material; (C) a thickener; and (D) a conductive auxiliary agent. An elution ratio of (A) the non-fluorinated polymer in an electrolytic solution solvent at 60° C. is equal to or less than 1.0 mass %, and a swelling ratio of (A) the non-fluorinated polymer in the electrolytic solution solvent at 60° C. is equal to or more than 10 mass % and equal to or less than 50 mass %. | 09-04-2014 |
| 20140272567 | ELECTROACTIVE COMPOSITIONS WITH POLY(ARYLENE OXIDE) AND STABILIZED LITHIUM METAL PARTICLES - An electroactive composition includes an anodic material; a poly(arylene oxide); and stabilized lithium metal particles; where the stabilized lithium metal particles have a size less than about 200 μm in diameter, are coated with a lithium salt, are present in an amount of about 0.1 wt % to about 5 wt %, and are dispersed throughout the composition. Lithium secondary batteries including the electroactive composition along with methods of making the electroactive composition are also discussed. | 09-18-2014 |
| 20140272568 | Complexometric Precursor Formulation Methodology for Industrial Production of Fine and Ultrafine Powders and Nanopowders for Lithium Metal Oxides for Battery Applications - A compound M | 09-18-2014 |
| 20140315081 | COMPOSITE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY AND PREPARATION METHOD THEREOF - The invention provides a composite electrode material for a lithium ion battery. The composite electrode material includes an electrode material and a conductive polymer. The conductive polymer coats the surface of the electrode material with a thickness of several nano-meter level. The electrode material is a positive electrode material or a negative electrode material, and the conductive polymer tends to disperse in an aqueous solution or an organic solution in the presence of a doping and dispersing agent and a dispersing medium. The conductive polymer is selected from poly(3,4-ethylenedioxythiophene) (PEDOT), polyaniline (PANT), or polypyrrole (PPy), the doping and dispersing agent is polystyrene sulfonic acid (PSS), and the dispersing medium is water; or the conductive polymer is polyaniline(emeraldine salt), and the dispersing medium is xylene. A method for preparing the composite electrode material for a lithium ion battery is also provided. | 10-23-2014 |
| 20140322599 | NON-AQUEOUS ELECTROLYTE AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME - Disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of a first acrylate compound having one or two acryl groups; and (ii) a reduced form of a second acrylate compound having three or more acryl groups. Further, disclosed in an electrochemical device comprising a cathode, an anode, a separator and a non-aqueous electrolyte, wherein the cathode and/or the anode is the above electrode. | 10-30-2014 |
| 20140322600 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery in accordance with the present invention is provided with an electrode body | 10-30-2014 |
| 20140335407 | Non-Lithium Metal Ion Battery Electrode Material Architecture - A method for configuring a non-lithium-intercalation electrode includes intercalating an insertion species between multiple layers of a stacked or layered electrode material. The method forms an electrode architecture with increased interlayer spacing for non-lithium metal ion migration. A laminate electrode material is constructed such that pillaring agents are intercalated between multiple layers of the stacked electrode material and installed in a battery. | 11-13-2014 |
| 20140349182 | High Energy Cathode for a Battery - An electrode for an electrochemical cell including a metal fluoride containing active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material. The active material can be a hybrid material formed from the reaction of a metal fluoride and a metal complex. | 11-27-2014 |
| 20140356705 | ENCAPSULATED Li2S NANOPARTICLES FOR Li/S BATTERIES WITH ULTRAHIGH ENERGY DENSITIES AND LONG CYCLE LIFE - Encapsulated lithium sulfide particles, e.g., Li | 12-04-2014 |
| 20140356706 | SECONDARY BATTERY - There is provided a negative electrode for a secondary battery that can provide a secondary battery having high charge and discharge efficiency, and a high capacity retention rate in charge and discharge cycles. A negative electrode for a secondary battery according to this exemplary embodiment contains scale-like graphite, a fluorine-based resin, and an imide-based resin. A method for manufacturing a negative electrode for a secondary battery according to this exemplary embodiment includes applying a negative electrode slurry containing scale-like graphite, a fluorine-based resin, an imide-based resin, and a solvent for dissolving the fluorine-based resin and the imide-based resin to a negative electrode current collector; and heat-treating the negative electrode current collector at a temperature of 100° C. or more and 150° C. or less. | 12-04-2014 |
| 20140370378 | Conductive Polymer and Si Nanoparticles Composite Secondary Particles and Structured Current Collectors for High Loading Lithium Ion Negative Electrode Application - Embodiments of the present invention disclose a composition of matter comprising a silicon (Si) nanoparticle coated with a conductive polymer. Another embodiment discloses a method for preparing a composition of matter comprising a plurality of silicon (Si) nanoparticles coated with a conductive polymer comprising providing Si nanoparticles, providing a conductive polymer, preparing a Si nanoparticle, conductive polymer, and solvent slurry, spraying the slurry into a liquid medium that is a non-solvent of the conductive polymer, and precipitating the silicon (Si) nanoparticles coated with the conductive polymer. Another embodiment discloses an anode comprising a current collector, and a composition of matter comprising a silicon (Si) nanoparticle coated with a conductive polymer. | 12-18-2014 |
| 20140377646 | LITHIUM-ION SECONDARY BATTERY - Provided is a lithium-ion secondary battery which can exhibit a stable cell performance, which has a high degree of freedom of choice of its shape, an improved output density, an improved flexural strength and a reduced size, which can be produced by an apparatus simplified as far as possible, with a reduced cycle time and at a reduced cost. The lithium-ion secondary battery has a laminar body wherein a positive electrode layer and a negative electrode layer are laminated on respective opposite surfaces of a solid electrolyte layer. The positive electrode layer is constituted by a first vapor-deposited polymer film containing a positive electrode active substance, and the negative electrode layer is constituted by a second vapor-deposited polymer film containing a negative electrode active substance, while the solid electrolyte layer is constituted by a third vapor-deposited polymer film having lithium-ion conductivity. | 12-25-2014 |
| 20150010814 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A secondary battery comprising a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte is provided. The electrode material of which the positive and/or negative electrode is made contains hydrophobic spherical silica particles, which are obtained by introducing R | 01-08-2015 |
| 20150017524 | ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR PREPARING THE SAME, ELECTRODE INCLUDING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE ELECTRODE - Disclosed is an electrode active material for a rechargeable lithium battery, including: a core part including a carbon-based active material; and a coating layer disposed on a surface of the core portion to include a ceramic, wherein the surface of the core part is subjected to coating with a low crystalline carbon material, a method for preparing the same, an electrode including the same, and a rechargeable lithium battery including the electrode. | 01-15-2015 |
| 20150017525 | METHOD FOR PREPARING ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY - Disclosed is a method for preparing an electrode active material for a rechargeable lithium battery, including: performing first mixing to mix a carbon-based active material with a low crystalline carbon material; performing second mixing to mix the mixture of the carbon-based active material and the low crystalline carbon material with a ceramic; and performing a heat treatment, an electrode for a rechargeable lithium battery including the electrode active material for the rechargeable lithium battery prepared by the method, and a rechargeable lithium battery. | 01-15-2015 |
| 20150017526 | SULFUR-CONTAINING COMPOSITE FOR LITHIUM-SULFUR BATTERY, THE ELECTRODE MATERIAL AND LITHIUM-SULFUR BATTERY COMPRISING SAID COMPOSITE - The present invention relates to a sulfur-containing composite, comprising a conductive microporous substrate and sulfur with chain structure loaded into said conductive microporous substrate; as well as an electrode material and a lithium-sulfur battery comprising said sulfur-containing composite. | 01-15-2015 |
| 20150064552 | COMPOSITE ANODE MATERIAL FOR A LITHIUM ION BATTERY AND PREPARATION METHOD THEREOF - The present invention belongs to the technical field of lithium ion batteries and in particularly relates to a composite anode material for a lithium ion battery. The composite anode material for a lithium ion battery comprises an anode active material and a coating layer coating the surface of the anode active material, wherein the anode active material is at least one selected from the group of Si, SiO | 03-05-2015 |
| 20150086868 | SECONDARY BATTERY - An object of one embodiment of the present invention is to provide a secondary battery in which deterioration of charge-discharge cycle characteristics is suppressed, to suppress generation of defects caused by expansion and contraction of an active material in a negative electrode, or to prevent deterioration caused by deformation of a secondary battery. To prevent deterioration, a material that can be alloyed with lithium and fluidified easily is used for a negative electrode. To hold a negative electrode active material over a surface of a current collector, a covering layer that covers the negative electrode active material is provided. Furthermore, a portion where the current collector and the negative electrode active material are in contact with each other is alloyed. In other words, an alloy that is in contact with both the current collector and the negative electrode active material is provided in the negative electrode. | 03-26-2015 |
| 20150093638 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes an electrode assembly including a positive electrode including a positive electrode active material layer, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one of the positive electrode and the separator contains a phosphoric acid ester compound containing at least one metal element and represented by a general formula (1) | 04-02-2015 |
| 20150099168 | REINFORCED BATTERY SEPARATOR AND METHODS OF USE THEREFOR - According to one embodiment, a separator for a lead-acid battery includes a membrane film of an ultra-high molecular weight polymer material (UHMWPE). Precipitated silica and glass fibers are disposed throughout the membrane film and held or maintained in position by the UHMWPE. The separator may have a thickness of between 1 and 50 mils and include between 10% and 30% by weight of the UHMWPE, between 40% and 80% by weight of the precipitated silica, between 5% and 25% by weight of processing oils, and between 1% and 30% by weight of the glass fibers. | 04-09-2015 |
| 20150111099 | LITHIUM ION BATTERY CATHODE ADDITIVE, FABRICATION METHOD THEREOF, LITHIUM ION BATTERY CATHODE SHEET AND LITHIUM ION BATTERY - A lithium ion battery cathode additive includes a core-shell coating structure formed by elemental lithium powder and a polymer coated on the surface of the elemental lithium powder, where the polymer can dissolve in a carbonic ester solvent, the polymer cannot react with N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAc), N-2-methyl pyrrolidone (NMP), tetrahydrofuran (THF), acetone or methanol, and the polymer exists stably at a temperature of 0-150° C. The lithium ion battery cathode additive may be added in a lithium ion battery cathode material as a lithium source, for compensating lithium consumption of a battery cathode in a first-time charge-discharge process. Embodiments of the present invention further provide a fabrication method of the lithium ion battery cathode additive, a lithium ion battery cathode sheet and a lithium ion battery that include the lithium ion battery cathode additive, where the lithium ion battery has high energy density and a long cycle life. | 04-23-2015 |
| 20150118551 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS SECONDARY BATTERY - A positive electrode active material layer comprises a coating layer for coating at least part of surfaces of positive electrode active material particles. The coating layer comprises alternate layers of a cationic material layer containing a cationic material having a positive zeta potential and an anionic material layer containing an anionic material having a negative zeta potential under neutral conditions, and a material layer having a zeta potential of opposite sign to that of the positive electrode active material particles is bonded to the surfaces of the positive electrode active material particles. The coating layer is thin and uniform, and has a high strength for bonding to the positive electrode active material particles, so the coating layer suppresses direct contact of the positive electrode active material particles and an electrolytic solution even when a nonaqueous secondary battery is used at a high voltage. | 04-30-2015 |
| 20150118552 | CATION-CONDUCTIVE CONFORMAL ULTRATHIN POLYMER ELECTROLYTES - A composite having an electrically conductive substrate and a polymer derived from a vinyl-containing siloxane monomer coating on the substrate. A method of electropolymerizing a vinyl-containing siloxane monomer to form a coating on an electrically conductive substrate. | 04-30-2015 |
| 20150125744 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - An object of the present invention is to provide a negative electrode for a lithium ion secondary battery with the excellent high-temperature cycle characteristic, and a lithium ion secondary battery including the same. In the negative electrode active material for a lithium ion secondary battery according to the present invention, a surface of a negative electrode active material including silicon or silicon oxide is coated with a polymer compound, and the polymer compound includes a polyacrylic acid derivative whose carboxyl groups at ends of side chains are cross-linked with a divalent metal cation (Mg | 05-07-2015 |
| 20150303463 | SLURRY COMPOSITION FOR LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME, AND LITHIUM ION SECONDARY BATTERY - A slurry composition for a lithium ion secondary battery negative electrode including a negative electrode active material, a conductive material, a water-soluble polymer, and a particulate binder, wherein an amount of the conductive material with respect to 100 parts by weight of the negative electrode active material is 0.1 parts by weight to 10 parts by weight, the water-soluble polymer has a 1% aqueous solution viscosity of 10 mPa·s to 3,000 mPa·s, and the particulate binder contains a particulate binder A having a surface acid amount of 0.01 meq/g or more and 0.10 meq/g or less and a particulate binder B having a surface acid amount of 0.15 meq/g or more and 0.5 meq/g or less. | 10-22-2015 |
| 20150311534 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode used in a non-aqueous electrolyte secondary battery comprises a positive electrode collector, and a positive electrode active substance layer formed upon the positive electrode collector. The positive electrode active substance layer has a positive electrode active substance and an aromatic organophosphate compound. The aromatic organophosphate compound ideally has a solubility of no more than 1% relative to a non-aqueous electrolytic solution serving as a liquid non-aqueous electrolyte. | 10-29-2015 |
| 20150340698 | POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING POSITIVE ELECTRODE, AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode for a nonaqueous electrolyte secondary battery containing an electrically conductive polymer (a), at least one of a polyanionic acid and a metal salt thereof (b), and a plasticizer (c), wherein the nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte solution having ion conductivity. The positive electrode has excellent peeling resistance and bending durability, and the nonaqueous electrolyte secondary battery having an excellent weight energy density and low dependency on electrolyte solution amount is provided. | 11-26-2015 |
| 20150357629 | LITHIUM-ION BATTERIES WITH NANOSTRUCTURED ELECTRODES - Several embodiments related to lithium-ion batteries having electrodes with nanostructures, compositions of such nanostructures, and associated methods of making such electrodes are disclosed herein. In one embodiment, a method for producing an anode suitable for a lithium-ion battery comprising preparing a surface of a substrate material and forming a plurality of conductive nanostructures on the surface of the substrate material via electrodeposition without using a template. The substrate material is at least partially compliant. | 12-10-2015 |
| 20150368411 | POLYMERS, SUBSTRATES, METHODS FOR MAKING SUCH, AND DEVICES COMPRISING THE SAME - The present invention relates generally to substrates for making polymers and methods for making polymers. The present invention also relates generally to polymers and devices comprising the same. | 12-24-2015 |
| 20160056456 | Electrode for an Energy Accumulator and Manufacturing Method - An electrode for an energy accumulator comprises a substrate, an active anode layer having an active anode material, the active anode material being at least partially a lithium, a lithium alloy and/or a lithium intercalation material, at least one lithium-ion-conducting layer having a material composition which gradually changes over a layer thickness and has at least one lithium-ion-conducting component. A method for forming an electrode for an energy accumulator, and a lithium-ion battery comprising an electrode are also disclosed. | 02-25-2016 |
| 20160079601 | CATHODE MATERIAL FOR SECONDARY BATTERIES, METHOD FOR PRODUCING CATHODE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY - A cathode material for Li ion secondary batteries has high output and high energy density with excellent electron conductivity and Li ion conductivity. The cathode material contains an electrode active material base containing Li, which is capable of electrode oxidation/reduction accompanied by desorption and absorption of Li ions in a potential range of 4 V or more and 5 V or less based on a metal Li negative electrode and has a reversible charge/discharge capacity accompanying the electrode oxidation/reduction in the potential range described above of 30 mAh or more per 1 g. Surfaces of primary particles of an electrode active material base are coated with a layer containing a conductive polymer and a negative ion that enables the conductive polymer to produce electron conductivity equal to or higher than the electron conductivity of the electrode active material itself. | 03-17-2016 |
| 20160115035 | COMPOSITIONS COMPRISING FREE-STANDING TWO-DIMENSIONAL NANOCRYSTALS - The present invention is directed to compositions comprising free standing and stacked assemblies of two dimensional crystalline solids, and methods of making the same. | 04-28-2016 |
| 20160118666 | STORAGE BATTERY ELECTRODE, MANUFACTURING METHOD THEREOF, STORAGE BATTERY, AND ELECTRONIC DEVICE - In manufacture of a storage battery electrode containing graphene as a conductive additive, the efficiency of reduction of graphene oxide under mild conditions is increased, and cycle characteristics and rate characteristics of a storage battery are improved. Provided is a manufacturing method of a storage battery electrode. In the manufacturing method, a first mixture containing an active material, graphene oxide, and a solvent is formed; a reducing agent is added to the first mixture and the graphene oxide is reduced to form a second mixture; a binder is mixed with the second mixture to form a third mixture; and the third mixture is applied to a current collector and the solvent is evaporated to form an active material layer. | 04-28-2016 |
| 20160141604 | SURFACE TREATED SILICON CONTAINING ACTIVE MATERIALS FOR ELECTROCHEMICAL CELLS - Provided are active materials for electrochemical cells. The active materials include silicon containing structures and treatment layers covering at least some surface of these structures. The treatment layers may include aminosilane, a poly(amine), and a poly(imine). These layers are used to increase adhesion of the structures to polymer binders within active material layers of the electrode. As such, when the silicon containing structures change their size during cycling, the bonds between the binder and the silicon containing structure structures or, more specifically, the bonds between the binder and the treatment layer are retained and cycling characteristics of the electrochemical cells are preserved. Also provided are electrochemical cells fabricated with such active materials and methods of fabricating these active materials and electrochemical cells. | 05-19-2016 |
| 20160141628 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A nonaqueous electrolyte secondary battery includes: a negative electrode current collector foil; and a negative electrode mixture layer that is arranged on the negative electrode current collector foil. The negative electrode mixture layer contains a plurality of granulated particles. Each of the granulated particles contains a negative electrode active material and a coating film. The coating film is formed on a surface of the negative electrode active material. The coating film includes a first film and a second film. The first film is formed on the surface of the negative electrode active material. The second film is formed on the first film. The first film contains a carboxymethyl cellulose polymer. The second film contains a polyacrylic acid polymer. | 05-19-2016 |
| 20160149216 | RESIN FOR COATING LITHIUM-ION-BATTERY ACTIVE MATERIAL, RESIN COMPOSITION FOR COATING LITHIUM-ION-BATTERY ACTIVE MATERIAL, AND COATED ACTIVE MATERIAL FOR LITHIUM-ION BATTERY - An object of the present invention is to provide a resin for coating an active material for lithium ion batteries which can prevent expansion of the electrode without inhibiting conduction of lithium ions. The resin for coating an active material for lithium ion batteries according to the present invention has a liquid absorbing rate of 10% or more when the resin is immersed in an electrolyte solution, and a tensile elongation at break of 10% or more when the resin is saturated with the electrolyte solution. | 05-26-2016 |
| 20160156037 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME | 06-02-2016 |
| 20160181600 | POSITIVE ELECTRODE FOR ALKALI METAL-SULFUR BATTERY, ALKALI METAL-SULFUR BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE POSITIVE ELECTRODE | 06-23-2016 |
