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Include electrolyte chemically specified and method

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

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

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Class / Patent application numberDescriptionNumber of patent applications / Date published
429324000 Chemically specified organic solvent containing 555
429304000 The electrolyte is solid 275
429199000 Halogen containing 155
429206000 Alkaline 137
429300000 The electrolyte is gelled 88
429344000 Chemically specified inorganic solvent other than water 15
429204000 Sulphuric acid 12
429203000 With acid containing N or P constituent 12
429189000 Precursor composition 8
429347000 Organic solute component in aqueous electrolyte 5
20090253049NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A non-aqueous electrolyte can suppress decomposition of a solvent, improve the cycle life of a secondary battery, suppress the rise of resistance of a secondary battery and improve the capacity maintenance ratio of a secondary battery A non-aqueous electrolyte secondary battery formed by using such a non-aqueous electrolyte includes a non-aqueous electrolyte containing an aprotic solvent and a disulfonic acid ester as expressed by chemical formula 1 shown below, a positive electrode and a negative electrode:10-08-2009
20090239154Non-aqueous electrolyte and secondary battery using the same - Disclosed is an electrolyte for a secondary battery comprising an electrolyte salt and an electrolyte solvent, the electrolyte further comprising both a cyclic diester compound and a sulfinyl group-containing compound. Also, disclosed is an electrode having a solid electrolyte interface (SEI) film partially or totally formed on a surface thereof, the SEI film being formed by electrical reduction of the above compounds. Further, a secondary battery comprising the electrolyte and/or the electrode is disclosed.09-24-2009
20130122379LITHIUM-ION BATTERY AND METHOD FOR FABRICATING THE SAME - A lithium-ion battery and a method for fabricating the same are provided. The lithium-ion battery includes an anode, a cathode, a separator, and an electrolyte solution. The cathode is disposed opposite to the anode. The separator is disposed between the anode and the cathode, where an accommodating region is defined by the anode, the cathode and the separator. The electrolyte solution disposed within the accommodating region includes an organic solvent, a lithium salt and an additive. The additive includes a sulfonyl-containing species, and the content thereof is 0.1 to 5 wt % based on the total weight of the electrolyte solution. The whole-cell potential of the lithium-ion battery is 4.5 V or above. In the lithium-ion battery and the method for fabricating the same of the invention, the sulfonyl-containing species serves as the additive, so that the battery is capable of being operated under a condition of high-voltage charge and discharge.05-16-2013
20100047697LEAD-ZINC BATTERY - A rechargeable battery is provided such that the positive electrode companies lead, the negative electrode zinc, and the electrolyte is an aqueous solution of an alkali metal sulphate. Upon discharge, lead dioxide is reduced to lead sulphate and zinc is oxidized to zinc oxide. The reactions are reversed when the battery is charged.02-25-2010
20120328961AQEUOUS ELECTROLYTE COMPOSITION AND SEALED-TYPE PRIMARY FILM BATTERY INCLUDING ELECTROLYTE LAYER FORMED OF THE AQUEOUS ELECTROLYTE COMPOSITION - Provided are an aqueous electrolyte composition including hydrophilic microparticles and a sealed-type primary film battery including an electrolyte layer formed of the aqueous electrolyte composition. In the sealed-type primary film battery, a separation film is interposed between a positive electrode and a negative electrode, and has a plurality of through-holes. A non-flowable electrolyte layer interposed between the positive electrode and the negative electrode includes first and second electrolyte layers extending parallel to the positive electrode and the negative electrode, and a plurality of third electrolyte layers filled in the through-holes of the separation film so as to be integrally connected to the first electrolyte layer and the second electrolyte layer. Due to the third electrolyte layers filled in the through-holes of the separation film, an ion transfer path in the electrolyte layer is shortened. The hydrophilic microparticles are dispersed in the electrolyte layer so as to prevent moisture evaporation.12-27-2012
429202000 Chromium containing 1
20120064397Phosphate Based Compound, Use Of The Compound In An Electrochemical Storage Device And Methods For Its Preparation - A phosphate based compound basically comprising—A: exchangeable cations used in charging and discharging, e.g. Li, Na, K, Ag, —B: non-exchangeable cations from the transition metals, group 3-12 of the periodic table of elements, e.g. Fe, Mn, Co, Cr, Ti, V, Cu, Sc, —C: 60 Mol-%-90 Mol-%, preferably 75 Mol-% of the compound being phosphate (PO03-15-2012
Entries
DocumentTitleDate
20120171561POLYMER RADICAL MATERIAL-ACTIVATED CARBON-CONDUCTIVE MATERIAL COMPOSITE, METHOD FOR PRODUCING CONDUCTIVE MATERIAL COMPOSITE, AND ELECTRICITY STORAGE DEVICE - The object of the present invention is to provide an electrode material which enables the production of an electricity storage device that has a large discharge capacity, and suffers minimal voltage drop due to resistance even when discharge is performed at a large electric current; a method for producing the electrode material; and an electricity storage device that exhibits both high energy density and high output characteristics, and an electricity storage device is produced which uses, as an electrode, a polymer radical material-activated carbon-conductive material composite, prepared by adding dropwise, or pouring, a raw material solution, in which a polymer radical material having a radical partial structure in a reduced state is dissolved or swollen and an activated carbon and a conductive material are dispersed or dissolved, into a solution in which the polymer radical material, the activated carbon and the conductive material do not dissolve or swell, thus obtaining a precipitate containing the polymer radical material, the activated carbon and the conductive material.07-05-2012
20100021813ELECTRODE FOR ANY ENERGY RESERVOIR - An electrode for an energy storage device has an electrode bearer and an active electrode material that is applied onto the electrode bearer on one side or on both sides, the electrode bearer being formed from an alloy that has a portion of copper and that additionally contains at least tin in a content of at least approximately 0.01 weight %.01-28-2010
20110195304MULTI-COMPONENT-SYSTEM LITHIUM PHOSPHATE COMPOUND PARTICLES HAVING AN OLIVINE STRUCTURE, MANUFACTURING METHOD THEREOF AND LITHIUM SECONDARY BATTERY EMPLOYING THE LITHIUM PHOSPHATE COMPOUND PARTICLES AS A POSITIVE ELECTRODE MATERIAL - There is disclosed a multi-component system lithium phosphate compound particles having an olivine structure and represented by a general formula of Li08-11-2011
20120183846LITHIUM SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTIC SOLUTION FOR USE IN THE LITHIUM SECONDARY BATTERY - Disclosed are: a lithium secondary battery which comprises a positive electrode containing, as a positive electrode active material, a lithium-containing metal oxide that contains at least one metal element selected from nickel, manganese and iron, a negative electrode containing, as a negative electrode active material, a carbon material capable of absorbing and releasing lithium, and a non-aqueous electrolytic solution comprising a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent, wherein the lithium secondary battery is characterized in that the non-aqueous electrolytic solution contains 0.1 to 5 mass % of 1,2,3,4-tetrahydronaphthalene and 0.1 to 5 mass % of a biphenyl derivative and/or an alkyl phenol derivative; and a non-aqueous electrolytic solution for use in the lithium secondary battery. The lithium secondary battery can have an excellent post-low-temperature-cycle recovery rate even after the battery is exposed to a high-temperature environment.07-19-2012
20130078508LITHIUM ION BATTERIES BASED ON NANOPOROUS SILICON - A lithium ion battery that incorporates an anode formed from a Group IV semiconductor material such as porous silicon is disclosed. The battery includes a cathode, and an anode comprising porous silicon. In some embodiments, the anode is present in the form of a nanowire, a film, or a powder, the porous silicon having a pore diameters within the range between 2 nm and 100 nm and an average wall thickness of within the range between 1 nm and 100 nm. The lithium ion battery further includes, in some embodiments, a non-aqueous lithium containing electrolyte. Lithium ion batteries incorporating a porous silicon anode demonstrate have high, stable lithium alloying capacity over many cycles.03-28-2013
20130084490ORGANOSILICON AMINE ELECTROLYTE MATERIALS CONTAINING POLYETHER CHAIN AND APPLICATION THEREOF IN ELECTROLYTES OF LITHIUM-ION BATTERIES - The invention provides an organosilicon amine electrolyte material containing a polyether chain, which has a wide range of applications, as well as an application of the electrolyte material in a lithium ion battery. The chemical structure thereof is as shown in Formula 1, wherein R1 and R2 are selected from the same or different C1-C10 alkyls; A is a polyether chain segment having the structure of (CH2)04-04-2013
20130084489LITHIUM SECONDARY BATTERY - A lithium ion secondary battery capable of charging in 15 minutes or less has a cathode with a composite layer on a surface of a collector having an active material and a conducting agent, an anode with an active material, an insulator between the cathode and anode, and an electrolyte with lithium ions. The cathode active material is represented by Li04-04-2013
20130034774NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY - A nonaqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode and the negative electrode occlude and discharge lithium irons. The nonaqueous electrolyte contains an additive and a polycyclic aromatic hydrocarbon. The additive includes an organic solvent having a donor number of 18 to 24. A content of the polycyclic aromatic hydrocarbon is 0% to 2.0% of a total mass of the nonaqueous electrolyte.02-07-2013
20130029216POSITIVE-ELECTRODE MATERIAL FOR LITHIUM SECONDARY-BATTERY, PROCESS FOR PRODUCING THE SAME, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY - The invention relates to: a lithium-transition metal compound powder for a positive-electrode material of lithium secondary batteries, which is a powder that comprises a lithium-transition metal compound having a function of being capable of an insertion and elimination of lithium ions, wherein the particles in the powder contain, in the inner part thereof, a compound that, when analyzed by an SEM-EDX method, has peaks derived from at least one element selected from the Group-16 elements belonging to the third or later periods of the periodic table and at least one element selected from the Group-5 to Group-7 elements belonging to the fifth and sixth periods of the periodic table; a process for producing the powder; a positive electrode for lithium secondary batteries; and a lithium secondary battery.01-31-2013
20130029217Materials for Battery Electrolytes and Methods for Use - Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.01-31-2013
20130052522CARBON-BASED NEGATIVE ELECTRODE MATERIAL AND SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE MATERIAL - To provide a carbon-based negative electrode material which can be used with an electrolyte containing PC as a main ingredient, a carbon-based negative electrode material having a graphene layer structure is crystalline and has pores. That is, the crystal structure of the carbon-based negative electrode material is distorted more significantly than that of graphite. Accordingly, the carbon-based negative electrode material has a larger interlayer distance between graphenes than graphite. It has been shown that such a negative electrode material can be used for a secondary battery which contains an electrolyte containing PC as a main ingredient.02-28-2013
20110003199NEGATIVE ELECTRODE ELEMENT FOR LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A negative electrode element for a lithium-ion secondary battery includes: a negative electrode current collector; and a negative electrode layer that includes an alloying active material layer formed on the negative electrode current collector and a resin layer formed on a surface of the alloying active material layer so as to have an opening that exposes part of the alloying active material layer to a surface of the negative electrode layer. The surface of the alloying active material layer, exposed to the opening, and a surface of the resin layer form a step so that the surface of the resin layer is farther from a surface of the negative electrode current collector than the exposed surface of the alloying active material layer.01-06-2011
20090092899NAN0-SIZED SILICON - A method includes combining fumed silicon oxide with a metal to form silicon having an average particle size of less than approximately 100 nm. The silicon can be incorporated into an anode of a lithium ion cell.04-09-2009
20130059199NON-AQUEOUS ELECTROLYTE SOLUTION TYPE LITHIUM ION SECONDARY BATTERY - A lithium-ion secondary battery with excellent durability is provided using a two-phase coexisting compound as a positive electrode active material. This lithium-ion secondary battery is provided with an electrode body having a positive electrode containing a positive electrode active material and a negative electrode containing a negative electrode active material, and a non-aqueous electrolyte solution containing a lithium salt in an organic solvent. The positive electrode active material is mainly composed of a two-phase coexisting compound containing lithium, and also contains particles of a lithium-transition metal oxide with a layered structure. The particles of the layered oxide have an average particle diameter of 2 μm or less, and the percentage content thereof in the positive electrode active material is 5 mass % or less.03-07-2013
20110027646ANODE MATERIAL OF EXCELLENT CONDUCTIVITY AND HIGH POWER SECONDARY BATTERY EMPLOYED WITH THE SAME - Provided is an anode material for an electrode mix comprising a carbon material and a lithium titanium oxide (LTO), wherein a ratio of an average particle size of LTO relative to that of the carbon material is in a range of 0.1 to 20%, and LTO is distributed mainly on a surface of the carbon material. The anode material of the present invention can prevent excessive formation of a SEI film, and is of a high capacity due to a high energy density and exhibits excellent output characteristics and rate characteristics. Further, it has superior electrolyte wettability which consequently results in improved battery performance and life characteristics.02-03-2011
20120082890NON-AQUEOUS ELECTROLYTES FOR ELECTROCHEMICAL CELLS - A electrolyte for a lithium battery includes a silane/siloxane compound represented by SiR04-05-2012
20110281157ELECTRODE, RELATED MATERIAL, PROCESS FOR PRODUCTION, AND USE THEREOF - An electrode material is created by forming a thin conformal coating of metal oxide on a highly porous carbon meta-structure. The highly porous carbon meta-structure performs a role in the synthesis of the oxide coating and in providing a three-dimensional, electronically conductive substrate supporting the thin coating of metal oxide. The metal oxide includes one or more metal oxides. The electrode material, a process for producing said electrode material, an electrochemical capacitor and an electrochemical secondary (rechargeable) battery using said electrode material is disclosed.11-17-2011
20110281156Vertically Aligned Carbon Nanotube Augmented lithium Ion Anode for Batteries - An electrode for a battery is augmented with vertically aligned carbon nanotubes, allowing both improved storage density of lithium ions and the increase electrical and thermal conductivity. Carbon nanotubes are extremely good electrical and thermal conductors, and can be grown directly on the electrode (e.g., anode or cathode) current collector metals, allowing direct electrical contact. Additionally carbon nanotubes have an ideal aspect ratio, having lengths potentially thousands of times as long as their widths, 10 to 1,000 nanometers. In an embodiment, the carbon nanotube electrode (e.g., an anode) comprises a silicon matrix, allowing withstanding volumetric changes exhibited during cycling of the electrochemical cell. In an embodiment, the carbon nanotube electrode (e.g., a cathode) comprises embedded sulfur, allowing both the improved retention of elemental sulfur and increase electrical conductivity.11-17-2011
20090053596Alkali Metal Battery - A storage battery is provided comprising appositive electrode of lead, a negative electrode of mercury, and an electrolyte consisting of an aqueous solution of a salt of an alkali metal. Upon charging the battery, lead is converted to lead dioxide and the alkali metal forms the amalgam with the mercury. During discharge, the lead dioxide is reduced to the plumbous state and the alkali metal is oxidized to the positive ion and goes into solution. The mercury is immobilized in one of several alternative ways.02-26-2009
20090004563SUBSTITUTED LITHIUM TITANATE SPINEL COMPOUND WITH IMPROVED ELECTRON CONDUCTIVITY AND METHODS OF MAKING THE SAME - Materials with improved electron conductivity for use in rechargeable lithium ion electrochemical cells include, but are not limited to, lithium titanate spinels of the formula Li01-01-2009
20110136005Vitamin B12 iron battery - A portable, rechargeable, and environmentally benign energy system, having an Iron Electrode (06-09-2011
20080286649ADDITIVES FOR INCREASING ION CONDUCTIVITY OF MOLTEN SALT TYPE ELECTROLYTE IN BATTERY - A lithium-ion battery comprises a negative electrode, a positive electrode, and an electrolyte containing a molten salt, a lithium salt, and an electrolyte additive. The electrolyte additive is chosen to increase the lithium ion conductivity of electrolyte. The electrolyte additive may be an organic, additive, such as an organic carbonate. In other examples, the electrolyte additive provides a source of alkali metal cations other than lithium, such as potassium, sodium, and/or cesium ions. An analogous approach can be taken for batteries using ionic species other than lithium.11-20-2008
20110076556METAL OXIDE COATED POSITIVE ELECTRODE MATERIALS FOR LITHIUM-BASED BATTERIES - Positive electrode active materials are formed with various metal oxide coatings. Excellent results have been obtained with the coatings on lithium rich metal oxide active materials. Surprisingly improved results are obtained with metal oxide coatings with lower amounts of coating material. High specific capacity results are obtained even at higher discharge rates.03-31-2011
20110195303CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.108-11-2011
20110262802NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY - To provide a carbon material capable of suppressing excessive reactivity with an electrolytic solution and excellent in a rapid charge/discharge characteristics.10-27-2011
20090325064ELECTRODE ASSEMBLY AND LITHIUM SECONDARY BATTERY HAVING THE SAME - Provided are an electrode assembly and a secondary battery having the same. The electrode assembly includes a positive electrode including a positive electrode active material layer, a negative electrode including a negative electrode active material layer, and a separator for separating the positive and negative electrodes from each other. The negative electrode active material layer includes a metal capable of alloying with lithium or lithium vanadium oxide (LiV12-31-2009
20110171523Polyolefin and Ceramic Battery Separator for Non-Aqueous Battery Applications - A ceramic microporous polyolefin battery separator membrane, high in air permeability, low in shrinkage and improved temperature resistance addresses the safety requirements of lithium ion batteries. The separators made by the current invention consists of one or more polyolefin polymers and kaolin fillers comprised of aluminum oxide and silicon oxide. The membranes of current invention have a thickness of 5-200 microns, air permeability of 1-200 sec/10 cc (Gurley seconds), and average pore diameter of less than 1 micron.07-14-2011
20090087739NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND METHOD FOR MOUNTING THE SAME - A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte interposed between the positive electrode and the negative electrode. The positive electrode includes an active material capable of reversibly absorbing and desorbing lithium. The negative electrode includes an active material of the same composition as that of the active material of the positive electrode. This non-aqueous electrolyte secondary battery does not generate voltage until being charged. Also, in the case of reflow mounting, charging the battery after mounting will avoid having an adverse effect on the components mounted on the substrate.04-02-2009
20100086848NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a nonaqueous electrolyte secondary battery and an active material for a nonaqueous electrolyte secondary battery, the nonaqueous electrolyte secondary battery includes: a positive electrode containing a positive-electrode active material; a negative electrode containing a negative-electrode active material; and a nonaqueous electrolyte, wherein molybdenum dioxide whose particles have an average aspect ratio of two or less is used as the positive-electrode active material or the negative-electrode active material where the aspect ratio is the ratio between the major axis length and the minor axis length of a particle-equivalent ellipse equivalent to the cross-sectional area or the two-dimensional projection image of each of the observed particles (major axis length/minor axis length), the particle-equivalent ellipse being an ellipse having the same area and the same first and second moments as the observed particle.04-08-2010
20090191457METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY, ELECTROLYTIC SOLUTION, AND LITHIUM-ION SECONDARY BATTERY - A method of manufacturing a lithium-ion secondary battery includes an electrolytic solution making step of making an electrolytic solution by mixing at least an organic solvent and an electrolytic salt together, an electrode insertion step of inserting an anode and a cathode into an outer case, and a liquid injection step of injecting the electrolytic solution into the outer case; wherein the electrolytic solution making step or the liquid injection step adds a compound having an alkyl group with a carbon number of 10 or greater and an epoxy, vinyl, or silanol group at a terminal to the electrolytic solution.07-30-2009
20100099025Wet cell battery - An improved lead-acid battery is disclosed including a sulfurless electrolyte believed to have the chemical formula H04-22-2010
20100273048Nonaqueous electrolyte composition and nonaqueous electrolyte secondary battery - A nonaqueous electrolyte composition includes: a nonaqueous solvent; an electrolyte salt; a matrix resin; a filler; and a surfactant.10-28-2010
20110200873CONDUCTIVE FIBROUS MATERIALS - As consistent with various embodiments, an electronic device includes a fibrous material having a conductive coating thereon. The conductive coating includes conductive nanoparticles coupled to fibers in the fibrous material. The structure is implemented in connection with a variety of devices, such as a capacitive device or a battery. Other embodiments are directed to forming conductive fibrous sheets, in dispersing a nanomaterial in a solution and applying the solution to a fibrous sheet, such as commercial paper, to form a conductive sheet.08-18-2011
20090169992Lithium Secondary Battery Using Ionic Liquid - A lithium secondary battery having high performance even at the time of high-rate charging and discharging, high energy density, high voltage, and a nonaqueous electrolyte excellent in safety. The lithium secondary battery using an ionic liquid, comprising a positive electrode, a negative electrode, a separator provided between the positive electrode and the negative electrode, and a nonaqueous electrolyte containing a lithium salt, wherein the nonaqueous electrolyte uses an ionic liquid containing bis(fluorosulfonyl)imide anion as an anionic component, as a solvent, voltage at the time of full charging is 3.6V or higher, and average discharge voltage in a discharge rate of 1-hour rate is 2.9V or higher.07-02-2009
20090104523High elastic modulus polymer electrolytes suitable for preventing thermal runaway in lithium batteries - A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×1004-23-2009
20090286154Process for the Preparation of an Electrolyte - The invention provides a process for preparing a crystalline vanadyl sulphate/vanadous sulphate material, the process including the steps of providing a mixture of vanadium pentoxide (V11-19-2009
20090239143NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a nonaqueous electrolyte secondary battery with an excellent packing property and remarkably improved high-temperature cycle characteristics and thermal stability. The nonaqueous electrolyte secondary battery 09-24-2009
20080241681Proton conducting electrolyte and electrochemical cell including proton conducting electrolyte - A proton conducting electrolyte having good proton conductivity and an electrochemical cell that includes the proton conducting electrolyte are provided. The proton conducting electrolyte has the ABO10-02-2008
20080286648ELECTROLYTIC SOLUTION AND BATTERY - A battery capable of securing the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The electrolytic solution contains a solvent, an electrolyte salt, and a sulfone compound having a given structure (sulfonic acid, carboxylic acid anhydride not having an aromatic ring). Compared to a case that an electrolytic solution does not contain the foregoing sulfone compound, the decomposition reaction of the electrolytic solution is prevented.11-20-2008
20120141869METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE LITHIUM-ION SECONDARY BATTERY - The present invention provides a method for producing a lithium-ion secondary battery with excellent high-temperature storage characteristics. The method for producing the lithium-ion secondary battery provided by the present invention includes a step of assembling a lithium-ion secondary battery using positive and negative electrodes, and a nonaqueous electrolyte containing in an organic solvent a lithium salt as a supporting salt, at least one type of substance selected from carboxylic acid anhydrides and dicarboxylic acids as additive A, and at least one type of substance selected from vinylene carbonate, vinylethylene carbonate, ethylene sulfite, and fluoroethylene carbonate as additive B; a step of carrying out initial charging of the assembled battery to a predetermined voltage; and a step of carrying out an aging treatment by keeping the battery at a temperature of 35° C. or higher for 6 hours or longer.06-07-2012
20090075170Continuous-feed electrochemical cell - A continuous-feed electrochemical cell with a cell body having a cell cavity defined by at least two cavity walls. One of the cavity walls is a cavity wall that is inclined to vertical. A series of barriers are connected to the cavity wall that is inclined to vertical. Electrochemically active particles are contained within the cell cavity. An electrolyte solution is also contained within the cell cavity. A cathode current collector is operatively connected to the cavity wall that is inclined to vertical, to the electrochemically active particles, and to the electrolyte solution. An anode current collector is operatively connected to the cavity wall that is inclined to vertical, to the electrochemically active particles, and to the electrolyte solution.03-19-2009
20090053597ELECTROLYTE COMPOSITION USED IN CHARGE STORAGE DEVICE AND STORAGE DEVICE USING THE SAME - The present invention provides an electrolyte composition used in a charge storage device, which comprises an ionic liquid that has high ionic conductivity and is highly safe with no risks of inflammation and the like. It is an electrolyte composition used in a charge storage device, which comprises a quaternary phosphonium salt ionic liquid represented by general formula (1) as described below. The viscosity at 25° C. of this ionic liquid is preferably 200 mPa·sec or less. In the general formula (1), it is preferable that the alkoxyalkyl group be a methoxymethyl group and that all the alkyl groups be ethyl groups.02-26-2009
20090253035NON-AQUEOUS ELECTROLYTE CELL, ELECTRODE STABILIZING AGENT, PHOSPHAZENE DERIVATIVE AND METHOD OF PRODUCING THE SAME - A non-aqueous electrolyte cell comprises a positive electrode, a negative electrode and a non-aqueous electrolyte containing a support salt. The non-aqueous electrolyte further comprises a phosphazene derivative. The phosphazene derivative having a specified structure functions as an electrode stabilizing agent or a non-combustion agent.10-08-2009
20130122360NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a nonaqueous electrolyte secondary battery that includes inside a battery cell; a positive electrode; a negative electrode prepared by using a negative electrode paste containing a silicon-based negative electrode active material; and a nonaqueous electrolyte solution, wherein an ionic compound represented by the following general formula (1) is contained inside the battery cell,05-16-2013
20120141866POWER STORAGE DEVICE - A power storage device which has improved performance such as higher discharge capacity and in which deterioration due to peeling or the like of an active material layer is less likely to be caused is provided. In an electrode for the power storage device, phosphorus-doped amorphous silicon is used for the active material layer over a current collector as a material that can be alloyed with lithium, and niobium oxide is deposited over the active material layer as a layer containing niobium. Accordingly, the capacity of the power storage device can be increased and the cycle characteristics and the charge-discharge efficiency can be improved.06-07-2012
20100261051SODIUM ION SECONDARY BATTERY AND NEGATIVE ELECTRODE ACTIVE MATERIAL USED THEREIN - A sodium ion secondary battery having far superior potential stability during discharge when repeatedly charging and discharging, and a negative electrode active material capable of being efficiently doped and dedoped with sodium ions used therefor are provided. The sodium ion secondary battery according to the present invention includes a positive electrode containing a positive electrode active material capable of being doped and dedoped with sodium ions, a negative electrode containing a negative electrode active material containing, as a sole component or as a main component, a glassy carbonaceous material capable of being doped and dedoped with sodium ions, and an electrolyte containing sodium ions. Further, the negative electrode active material for a non-aqueous electrolyte sodium ion secondary battery according to the present invention includes a glassy carbonaceous material as a sole component or as a main component.10-14-2010
20110059358LITHIUM BATTERY - A lithium battery includes: a positive electrode 03-10-2011
20110059357NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery includes: a positive electrode containing a positive electrode active material composed of a lithium complex oxide; a negative electrode; and a nonaqueous electrolyte containing a nonaqueous solvent, an electrolyte salt and at least one additive selected from the group consisting of a sulfone compound (1) represented by the following general formula (1) and a sulfone compound (2) represented by the following general formula (2)03-10-2011
20110059356NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution contains a nitrile compound having a chain saturated hydrocarbon group and a nitrile group, the number of carbon atoms in the nitrile compound is four or more, and the positive electrode contains a positive-electrode active material on the surface of which particles of a rare earth element compound are deposited in dispersed form.03-10-2011
20110059355HIGH-ENERGY METAL AIR BATTERIES - Disclosed herein are embodiments of lithium/air batteries and methods of making and using the same. Certain embodiments are pouch-cell batteries encased within an oxygen-permeable membrane packaging material that is less than 2% of the total battery weight. Some embodiments include a hybrid air electrode comprising carbon and an ion insertion material, wherein the mass ratio of ion insertion material to carbon is 0.2 to 0.8. The air electrode may include hydrophobic, porous fibers. In particular embodiments, the air electrode is soaked with an electrolyte comprising one or more solvents including dimethyl ether, and the dimethyl ether subsequently is evacuated from the soaked electrode. In other embodiments, the electrolyte comprises 10-20% crown ether by weight.03-10-2011
20120141867LITHIUM SECONDARY BATTERY - An electrolyte includes a mixture of polymerizable compounds, or a polymer, in which the mixture includes a polymerizable compound having an aromatic functional group and a polymerizable functional group, and a polymerizable compound having a phosphorus-containing functional group that contains phosphorus, and having a polymerizable functional group, and in which the polymer has residues of each of the phosphorus-containing functional group, the aromatic functional group and the polymerizable functional group.06-07-2012
20120141868ZEOLITE FOR TREATMENT OF NONAQUEOUS ELECTROLYTIC SOLUTION AND TREATMENT METHOD OF NONAQUEOUS ELECTROLYTIC SOLUTION - An object of the present invention is to provide a zeolite enabling a dehydration treatment of a nonaqueous electrolytic solution without causing a problem of elution of sodium from the zeolite at the time of dehydrating a nonaqueous electrolytic solution for a lithium battery by using a zeolite. The present invention relates to a zeolite, wherein from 97.5 to 99.5 mol % of the ion-exchangeable cation is ion-exchanged with lithium, and when this zeolite is used, a nonaqueous electrolytic solution can be dehydrated while keeping the elution of a cation impurity such as sodium down to 50 ppm or less. As for the zeolite species, at least one or more zeolites selected from the group consisting of A-type, chabazite, ferrierite, ZSM-5 and clinoptilolite can be used.06-07-2012
20090142663NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A nonaqueous electrolyte secondary battery, comprising a positive electrode containing a transition metal-containing composite oxide as a positive electrode active material, a negative electrode containing a negative electrode active material allowing reversible insertion and extraction of lithium, a separator, and a nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains at least one additive (A) selected from the group consisting of ethylene sulfite, propylene sulfite, and propane sultone and at least one additive (B) selected from the group consisting of maleic anhydride, vinylene carbonate, vinylethylene carbonate, and LiBF06-04-2009
20080292959Positive Electrode and Non-Aqueous Electrolyte Secondary Battery Using the Same - An object of the invention is to provide a positive electrode of an inexpensive material capable of sufficiently storing and releasing ions, and another object is to provide an inexpensive non-aqueous electrolyte secondary battery that allows reversible charge and discharge to be carried out. The positive electrode according to the invention includes an oxide containing potassium and manganese, and the non-aqueous electrolyte secondary battery according to the invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte containing potassium ions. The positive electrode includes an oxide containing potassium and manganese.11-27-2008
20110117428LITHIUM BATTERY AND METHOD OF MANUFACTURING THE SAME - A lithium battery including a negative electrode containing a negative active material into which lithium ions intercalate at an electrical potential equal to or greater than 1.2 V with respect to a potential of Li, and a method of manufacturing the lithium battery. According to one or more embodiments of the present invention, a lithium battery includes: a positive electrode; a negative electrode including a negative active material into which lithium ions intercalate at an electrical potential equal to or greater than 1.2 V with respect to a potential of Li; an electrolyte including a nonaqueous organic solvent and a lithium salt; and a first layer formed on at least one portion of the surface of the negative electrode by chemical reactions involving a first compound represented by Formula 1, elements contained in the electrolyte, and the negative active material.05-19-2011
20130136980ELECTROCHEMICAL CELL, ELECTRODE COMPOSITION THEREOF AND METHOD FOR MAKING SAME - A composition of the positive electrode comprises at least one electroactive metal, at least one iodide of at least one transition metal, a first alkali metal halide, and an electrolyte salt having a melting point of less than about 300° C. The at least one electroactive metal is selected from the group consisting of titanium, vanadium, niobium, nickel, cobalt, chromium, manganese, silver, antimony, cadmium, tin, lead, iron, and zinc. An electrochemical cell and a method for making an electrochemical cell are also presented.05-30-2013
20130136982ELECTROCHEMICAL DEVICE USING MAGNESIUM ELEMENT-CONTAINING NEGATIVE ELECTRODE - An electrochemical device includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution, wherein the negative electrode contains a magnesium element, and wherein the nonaqueous electrolytic solution is one obtained after dipping metallic lithium for a predetermined time period.05-30-2013
20100316907Negative electrode for nonaqueous electrolyte solution battery and nonaqueous electrolyte solution battery having the same - A negative electrode used for a nonaqueous electrolyte solution battery having nonaqueous electrolyte solution containing lithium ion includes a metal carbon composite material. The metal carbon composite material has a porous carbon material having cavities, and a metal material made of metal to reversibly store or emit lithium ion. The metal material is arranged on a surface of the porous carbon material including inner surfaces of the cavities. The porous carbon material has a mass of 1-65 mass % when the metal carbon composite material is defined to have a mass of 100 mass %.12-16-2010
20090035655Crosslinkable composition for a battery electrolyte - The field of the present invention relates to the field of batteries and of polymer electrolytes for batteries and more particularly to the field of lithium batteries.02-05-2009
20100178555LITHIUM ENERGY STORAGE DEVICE - A lithium energy storage device comprising at least one positive electrode, at least one negative electrode, and an ionic liquid electrolyte comprising bis(fluorosulfonyl)imide (FSI) as the anion and a cation counterion, and lithium ions at a level of greater than 0.3 mol/kg of ionic liquid, and not more than 1.5 mol/kg of ionic liquid. Also described is a lithium energy storage device comprising an FSI ionic liquid electrolyte and LiBF4 or LiPF6 as the lithium salt. Also described is a lithium energy storage device comprising an FSI ionic liquid electrolyte and a positive electrode comprising lithium metal phosphate, in which the metal is a first-row transition metal, or a doped derivate thereof.07-15-2010
20090029249NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains active material particles and a coating material. The active material particles are represented by any one of the following formulae (1) to (3) and have an average particle diameter of 0.1 to 10 μm. The coating material comprises at least particles having an average particle diameter of 60 nm or less or layers having an average thickness of 60 nm or less. The particles or the layers contain at least one element selected from the group consisting of Mg, Ti, Zr, Ba, B and C.01-29-2009
20090029248Nonaqueous electrolyte and secondary battery containing same - Provided is a non-aqueous electrolyte for a secondary battery including a non-aqueous solvent, a solute dissolved in the non-aqueous solvent, and an additive, in which the additive includes an unsaturated chain hydrocarbon compound having two or more carbon-carbon unsaturated bonds and including a main chain having five or more carbon atoms. The unsaturated chain hydrocarbon compound preferable as the additive is 1,3-hexadiene or 2,4-hexadiene. The amount of the unsaturated chain hydrocarbon compound is preferably 0.1 to 10 parts by weight per 100 parts by weight of the non-aqueous solvent.01-29-2009
20110070484LITHIUM PRIMARY BATTERY - A lithium primary battery includes: a negative electrode comprising lithium metal or a lithium alloy; a positive electrode including a positive electrode active material; a separator disposed between the negative electrode and the positive electrode; a carbon layer interposed between the negative electrode and the separator, the carbon layer including carbon particles and a coating on a surface of the carbon particles, the coating including a lithium carboxylate and lithium carbonate; and a non-aqueous electrolyte with a carboxylic acid concentration of 0% by weight or more and less than 0.01% by weight.03-24-2011
20100310933Magnesium cell with improved electrolyte - An improved electrolyte for a cell having an anode comprising magnesium or magnesium alloy. The cell's cathode may desirably include iron disulfide (FeS12-09-2010
20090325063METHOD FOR HIGH VOLUME MANUFACTURE OF ELECTROCHEMICAL CELLS USING PHYSICAL VAPOR DEPOSITION - Embodiments of the present invention relate to apparatuses and methods for fabricating electrochemical cells. One embodiment of the present invention comprises a single chamber configurable to deposit different materials on a substrate spooled between two reels. In one embodiment, the substrate is moved in the same direction around the reels, with conditions within the chamber periodically changed to result in the continuous build-up of deposited material over time. Another embodiment employs alternating a direction of movement of the substrate around the reels, with conditions in the chamber differing with each change in direction to result in the sequential build-up of deposited material over time. The chamber is equipped with different sources of energy and materials to allow the deposition of the different layers of the electrochemical cell.12-31-2009
20110008673NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - In a non-aqueous electrolyte secondary battery 01-13-2011
20120034515RECHARGEABLE ZINC ION BATTERY - The present invitation discloses a rechargeable zinc ion battery, in which anodic zinc will be electrochemically dissolved as Zn02-09-2012
20090197167Fluorinated Additives For Lithium Ion Batteries - The usability of certain fluorinated organic compounds which have aromatic radicals, C═C double bonds, C═O groups or organosilicon groups as an additive for Li ion batteries is disclosed.08-06-2009
20090176157AA AND AAA ALKALINE DRY BATTERIES - In a battery casing, there are accommodated a positive electrode containing manganese dioxide, a negative electrode containing zinc, and an electrolyte containing an aqueous solution of potassium hydroxide. The negative electrode contains bismuth of 100 ppm or less. In an AA dry battery, the amount of zinc in the negative electrode is 4.00 g or more, and the weight of the electrolyte is 4.00 g or more. In an AAA dry battery, the amount of zinc in the negative electrode is 1.71 g or more, and the weight of the electrolyte is 1.77 g or more.07-09-2009
20120308880POROUS LI4TI5O12 ANODE MATERIAL, METHOD OF MANUFACTURING THE SAME AND BATTERY COMPRISING THE SAME - The present invention relates to a porous lithium titanium oxide anode material, a method of manufacturing the same, and a battery comprising the same. The method of manufacturing a porous lithium titanium oxide anode material of the present invention includes the following steps: (A) mixing a lithium salt and an organic acid, and adding a titanium salt immediately; (B) performing a first heat treatment at 300-800° C. for three hours; and (C) performing a second heat treatment at 600-800° C. for ten hours to obtain a porous lithium titanium oxide anode material. The cost of manufacturing the porous lithium titanium oxide anode material can be reduced through the aforementioned method, and a lithium battery having excellent electrochemical properties and cycling stabilities can be produced by the present invention.12-06-2012
20110070483PREPARATION OF FLOW CELL BATTERY ELECTROLYTES FROM RAW MATERIALS - A method for preparing a redox flow battery electrolyte is provided. In some embodiments, the method includes the processing of raw materials that include sources of chromium ions and/or iron ions. The method further comprises the removal of impurities such as metal ions from those raw materials. In some embodiments, an ammonium salt may be used to remove metal impurities from an aqueous mixture of chromium ions and/or iron ions. Further provided is a redox flow battery comprising at least one electrolyte prepared from the above-identified methods.03-24-2011
20080199772Metal Fluoride And Phosphate Nanocomposites As Electrode Materials - The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.08-21-2008
20110111286NONAQUEOUS ELECTROLYTIC SOLUTION CONTAINING MAGNESIUM IONS, AND ELECTROCHEMICAL DEVICE USING THE SAME - A nonaqueous electrolytic solution containing magnesium ions which shows excellent electrochemical characteristics and which can be manufactured in a general manufacturing environment such as a dry room, and an electrochemical device using the same are provided. A Mg battery has a positive-electrode can 05-12-2011
20110064998NON-AQUEOUS ELECTROLYTE FOR A LITHIUM BATTERY, LITHIUM BATTERY WHEREIN SAID ELECTROLYTE IS USED, AND HYDROXY-ACID DERIVATIVE FOR USE IN SAID ELECTROLYTE - Disclosed are (1) a nonaqueous electrolytic solution for lithium battery comprising an electrolyte dissolved in a nonaqueous solvent, which contains at least one hydroxy acid derivative compound represented by the formulae (I) and (II) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and which can improve the low-temperature and high-temperature cycle property thereof (wherein R03-17-2011
20100167121Nonaqueous Electrolyte - To provide a nonaqueous electrolyte that makes it possible to lengthen the life of a lithium ion cell even when subjected to repeated charge/discharge cycles when used in a lithium ion cell.07-01-2010
20120064395CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.103-15-2012
20120058392Rechargeable battery with aluminium anode, graphite cathode and an electrolyte containing aluminium vapour in plasma state - We propose a rechargeable battery with aluminium anode. In order to avoid the high reactivity of aluminium ions with most liquid electrolytes, we present an electrolyte containing aluminium vapour in plasma state.03-08-2012
20120070727GLASS COMPOSITIONS WITH LEACHABLE METAL OXIDES AND IONS - The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte. The compositions include glass based compositions that are included as part of various battery components, such as the battery separator, pasting paper, additives to battery paste, etc.03-22-2012
20120070725METAL HALIDE COATINGS ON LITHIUM ION BATTERY POSITIVE ELECTRODE MATERIALS AND CORRESPONDING BATTERIES - Lithium ion battery positive electrode material are described that comprise an active composition comprising lithium metal oxide coated with an inorganic coating composition wherein the coating composition comprises a metal chloride, metal bromide, metal iodide, or combinations thereof. Desirable performance is observed for these coated materials. In particular, the non-fluoride metal halide coatings are useful for stabilizing lithium rich metal oxides.03-22-2012
20110091767ACCUMULATOR MATERIAL AND ACCUMULATOR DEVICE - An electricity storage device including a positive electrode 04-21-2011
20120070729GLASS COMPOSITIONS WITH HIGH LEVELS OF BISMUTH OXIDE - The application describes glass compositions that includes more than 30 percent by weight of bismuth compounds, in particular bismuth oxide. Additionally, components, specifically battery separators, made from the glass compositions with high levels of bismuth are described.03-22-2012
20120156555NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including: a positive electrode including a first active material capable of occluding and releasing a lithium ion and a second active material capable of occluding and releasing an anion; a negative electrode including a negative electrode active material capable of occluding and releasing a lithium ion; and an electrolyte containing a salt of a lithium ion and the anion. The second active material is a polymer having a tetrachalcogenofulvalene skeleton in a repeating unit. According to the present invention, provided is a non-aqueous electrolyte secondary battery with improved output characteristics, in particular, a pulse discharge characteristic, without a significant decrease in energy density.06-21-2012
20120121972ELECTROCHEMICAL BATTERY CELL - An electrochemical battery cell having a negative electrode, an electrolyte containing a conductive salt, and a positive electrode, the electrolyte being based on SO05-17-2012
20120164523LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery with high reliability and high safety is provided. The lithium ion secondary battery includes a positive electrode for occluding and releasing lithium ions, a negative electrode for occluding and releasing lithium ions, a non-aqueous liquid electrolyte containing a lithium salt, and a separator disposed between the positive electrode and the negative electrode. The positive electrode includes particles of polymethyl methacrylate. Preferably, particles of positive electrode active material in the positive electrode are covered with the particles of polymethyl methacrylate.06-28-2012
20100248021ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed is an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same. The electrolyte includes a lithium salt, a trialkylsilyl cyanide compound represented by the following Chemical Formula 1, and an organic solvent.09-30-2010
20100248020ULTRA-HIGH PURITY ZINC BROMIDES AND QUATERNARY AMMONIUM BROMIDES FOR USE IN ZINC-BROMINE BATTERIES - Ultra-high purity zinc bromide and quaternary ammonium bromides suitable for use in zinc-bromine batteries, and methods for making same, are provided.09-30-2010
20100248022NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The nonaqueous electrolyte secondary battery having high output characteristics and excellent safety when overcharging as well as excellent charge and discharge cycle characteristics according to an aspect of the invention includes a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, a separator, and a nonaqueous electrolyte. The positive electrode active material includes lithium iron phosphate having an olivine crystal structure represented by General Formula Li09-30-2010
20100248023NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery has a working electrode 09-30-2010
20110183199NONAQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM BATTERY, LITHIUM BATTERY USING SAME, AND FORMYLOXY GROUP-CONTAINING COMPOUND USED THEREIN - Disclosed are a nonaqueous electrolytic solution for lithium secondary battery comprising an electrolyte dissolved in a nonaqueous solvent and containing at least one compound represented by the formula (I) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution; a lithium battery containing the electrolytic solution and excellent in low-temperature and high-temperature cycle property; and a formyloxy group-containing compound having a specific structure which is used in lithium batteries, etc.07-28-2011
20120315534Materials for Battery Electrolytes and Methods for Use - Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.12-13-2012
20120171560Silicon and lithium silicate composite anodes for lithium rechargeable batteries and preparation method thereof - The present invention provides composite anodes comprising particles composed of silicon and lithium silicate, active and inactive anode materials, and binders, for lithium rechargeable batteries, wherein the particles composed of silicon and lithium silicate are prepared via treating silicon particles with lithium hydroxide in a wet process. Cycle life and characteristics and capacity of a secondary battery adopting the composite anode can be greatly improved.07-05-2012
20120315535SECONDARY BATTERY - This invention provides an electricity storage device having improved characteristics by optimizing battery materials, particularly an electrolyte solution. The electrolyte solution (12-13-2012
20120177986ELECTROCHEMICAL CELL AND ELECTROCHEMICAL CAPACITOR - An electrochemical cell includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode and/or the negative electrode includes a penetrating portion that penetrates the electrodes in the thickness direction. Further, an electrochemical capacitor includes a positive electrode, a negative electrode, and an electrolyte solution. In a plane of projection in which a region carrying a negative electrode active material of the negative electrode is projected onto a region carrying a positive electrode active material of the positive electrode along a opposed direction, the ratio of an area carrying the positive electrode active material to an area carrying the negative electrode active material is less than 1.07-12-2012
20100009254Non-Aqueous Electrolyte Secondary Battery - An object of the invention is to provide an inexpensive non-aqueous electrolyte secondary battery that allows reversible charge and discharge to be carried out and can be used for a long period because of a stable non-aqueous electrolyte used therein. The invention provides a non-aqueous electrolyte secondary battery including a positive electrode including a positive electrode active material and capable of storing and releasing sodium, a negative electrode capable of storing and releasing sodium, and a non-aqueous electrolyte, and the positive electrode active material includes sodium, nickel, manganese, and a transition metal that can exist in a hexavalent state. An example of the transition metal that can exist in a hexavalent state may include tungsten (W). An example of the negative electrode may include a sodium metal capable of storing and releasing sodium ions.01-14-2010
20090291364Electrolytic Solution - There is provided an electrolytic solution comprising a chain carbonate (I) represented by the formula (I):11-26-2009
20100291436ASYMMETRIC TYPE BF3 COMPLEX - A main object of the present invention is to provide an asymmetric type BF11-18-2010
20110123858COMPOSITE ELECTRODE MATERIAL - The invention relates to a composite material comprising carbon fibers and complex oxide particles, wherein the carbon fibers and the complex oxide particles have a carbon coating on at least part of their surface, said carbon coating being a non powdery coating The material is prepared by a method comprising mixing a complex oxide or precursors thereof, an organic carbon precursor and carbon fibers, and subjecting the mixture to a heat treatment in an inert or reducing atmosphere for the decomposition of the precursors The material is useful as the cathode material in a battery05-26-2011
20120328936HIGH RATE, LONG CYCLE LIFE BATTERY ELECTRODE MATERIALS WITH AN OPEN FRAMEWORK STRUCTURE - A battery includes a cathode, an anode, and an aqueous electrolyte disposed between the cathode and the anode and including a cation A. At least one of the cathode and the anode includes an electrode material having an open framework crystal structure into which the cation A is reversibly inserted during operation of the battery. The battery has a reference specific capacity when cycled at a reference rate, and at least 75% of the reference specific capacity is retained when the battery is cycled at 10 times the reference rate.12-27-2012
20120328937NONAQUEOUS ELECTROLYTE AND LITHIUM ION RECHARGEABLE BATTERY - A nonaqueous electrolyte which is capable of improving the charging and discharging characteristics of a lithium ion rechargeable battery and a lithium ion rechargeable battery with excellent charging and discharging characteristics are provided. The nonaqueous electrolyte is one that is capable of being used in a lithium ion rechargeable battery and includes an electrolytic salt and the compound represented by the following formula (12-27-2012
20120264009METHOD FOR MANUFACTURING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY USING SAME - A method of preparing a positive active material for a rechargeable lithium battery including a) mixing a composite metal precursor and a lithium compound; b) firing the mixture to prepare a positive active material; c) mixing the resulting positive active material, a carbon coating material, and a solvent; and d) heat-treating the resulting mixture to provide a positive active material coated with the carbon coating material, wherein the carbon coating material is used in an amount of 1 wt % to 30 wt % based on 100 wt % of the composite metal precursor, lithium compound, and carbon coating material, the firing is performed at 400 to 900° C., and the positive active material provided in d) is represented by the following Chemical Formula 1, is provided.10-18-2012
20120270101LITHIUM SECONDARY BATTERY - A lithium ion secondary battery capable of charging in 15 minutes or less has a cathode with a composite layer on a surface of a collector having an active material and a conducting agent, an anode with an active material, an insulator between the cathode and anode, and an electrolyte with lithium ions. The cathode active material is represented by Li10-25-2012
20110212362NON-AQUEOUS ELECTROLYTE SECONDARY CELL - The object of the present invention is to provide a non-aqueous electrolyte secondary cell that excels in safety against overcharging and shows only a small increase in thickness during continuous charge. This object can be achieved by adopting the following configuration: a separator is used that is made of a microporous polyolefin membrane having an average pore diameter of 0.07 to 0.09 μm; a non-aqueous electrolyte contains 0.5 to 3.0 mass % of 1,3-dioxane, 0.05 to 0.3 mass % of adiponitrile, and 0.5 to 3.0 mass % of cyclohexylbenzene and/or tert-amylbenzene relative to the mass of the non-aqueous electrolyte; and preferably the non-aqueous electrolyte further contains 0.5 to 5.0 mass % of a vinylene carbonate and 0.1 to 2.0 mass % of 2-propyn-1-yl 2-(methylsulfonyloxy) propionate.09-01-2011
20110236751HIGH VOLTAGE BATTERY FORMATION PROTOCOLS AND CONTROL OF CHARGING AND DISCHARGING FOR DESIRABLE LONG TERM CYCLING PERFORMANCE - Improved cycling of high voltage lithium ion batteries is accomplished through the use of a formation step that seems to form a more stable structure for subsequent cycling and through the improved management of the charge-discharge cycling. In particular, the formation charge for the battery can be performed at a lower voltage prior to full activation of the battery through a charge to the specified operational voltage of the battery. With respect to management of the charging and discharging of the battery, it has been discovered that for the lithium rich high voltage compositions of interest that a deeper discharge can preserve the cycling capacity at a greater number of cycles. Battery management can be designed to exploit the improved cycling capacity obtained with deeper discharges of the battery.09-29-2011
20100233532Composition for battery - A composition for a battery containing an electroconductive assistant improves battery performance of a battery produced using this composition as a result of achieving dispersion stabilization without inhibiting electroconductivity of the electroconductive assistant. The invention provides a composition for a battery comprising at least one type of dispersant selected from an organic pigment derivative having an acidic functional group(s) or a triazine derivative having an acidic functional group(s), a carbon material as an electroconductive assistant, and as necessary, a solvent, a binder and a positive electrode active substance or negative electrode active substance; and also provides a lithium secondary battery comprising a positive electrode having a positive electrode composite layer on a current collector, a negative electrode having a negative electrode composite layer on a current collector, an electrolyte containing lithium, and as necessary, an electrode foundation layer, wherein the positive electrode composite layer, the negative electrode composite layer or the electrode foundation layer is formed using the composition for a battery described above.09-16-2010
20100233531ELECTROLYTE COMPOSITION AND PHOTOELECTRIC CONVERSION ELEMENT INCORPORATING THE SAME - An electrolyte composition includes an ionic liquid and a solvent, wherein the solvent contains a material made of at least one of sulfolane and derivatives thereof, and a content of the material is 5 to 40 mass % of the total content of the electrolyte composition.09-16-2010
20120276444ACTIVE MATERIAL FOR RECHARGEABLE BATTERY - A magnesium battery includes a first electrode including an active material and a second electrode. An electrolyte is disposed between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes an inter-metallic compound of magnesium and bismuth.11-01-2012
20110250494CATHODE PLATE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A negative electrode plate for a nonaqueous electrolyte secondary battery, which includes a collector, and an electrode active material layer that is arranged on the collector. The electrode active material layer contains a negative electrode active material, and a metal oxide or an elemental metal. The negative electrode active material is firmly affixed onto the collector by the metal oxide or elemental metal.10-13-2011
20090311596CATHOLYTES FOR AQUEOUS LITHIUM/AIR BATTERY CELLS - Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.12-17-2009
20120328935ACTIVE MATERIAL FOR RECHARGEABLE BATTERY - A magnesium battery includes a first electrode including an active material and a second electrode. An electrolyte is disposed between the first electrode and the second electrode. The electrolyte includes a magnesium compound. The active material includes an inter-metallic compound of magnesium and antimony. The active material also includes antimony or an alloy of bismuth and antimony.12-27-2012
20120100423Removal Of Impurities From Lithium-Iron Disulfide Electrochemical Cells - A lithium electrochemical cell, and a process for making the same, are disclosed. The cell includes a chelating agent that is specifically selected to remove impurities introduced to the cell by other component.04-26-2012
20120100422COMPOSITE NANO POROUS ELECTRODE MATERIAL, PROCESS FOR PRODUCTION THEREOF, AND LITHIUM ION SECONDARY BATTERY - This invention provides a nano composite porous electrode material that has high charge-discharge behavior and charge or discharge capacity and a manufacturing method thereof. It also provides a lithium-ion secondary battery using this nano composite porous electrode material.04-26-2012
20120288750GRAPHENE MATERIALS HAVING RANDOMLY DISTRIBUTED TWO-DIMENSIONAL STRUCTURAL DEFECTS - Graphene-based storage materials for high-power battery applications are provided. The storage materials are composed of vertical stacks of graphene sheets and have reduced resistance for Li ion transport. This reduced resistance is achieved by incorporating a random distribution of structural defects into the stacked graphene sheets, whereby the structural defects facilitate the diffusion of Li ions into the interior of the storage materials.11-15-2012
20120288754CATHODE AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a battery cathode (11-15-2012
20120288752ADDITIVE FOR OVERCHARGE PREVENTING OF SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE FOR SECONDARY BATTERY INCLUDING THE SAME - An additive for overcharge prevention of a lithium ion battery is provided. A nonaqueous electrolyte for a lithium ion battery including a lithium salt and an organic solvent is also provided, which includes both a terphenylene derivative and a xylene derivative. The additive undergoes oxidative polymerization during overcharge and increases resistance of an electrode surface, thereby shutting down overcharge current. When the additive of the present invention is used in the electrolyte of a lithium ion battery, the safety of battery can be improved during overcharge.11-15-2012
20120288753ALUMINUM-BASED HYDRIDE ANODES AND GALVANIC ELEMENTS CONTAINING ALUMINUM-BASED HYDRIDE ANODES - A hydride anode containing aluminium of the formula (M11-15-2012
20130011726POWDERS FOR POSITIVE-ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY EMPLOYING THE SAME, AND LITHIUM SECONDARY BATTERY - The invention relates to a lithium-transition metal compound powder for a positive-electrode material for lithium secondary battery which comprises secondary particles configured of primary particles having two or more compositions and a lithium-transition metal compound having a function of being capable of insertion and release of lithium ions, wherein the powder gives a pore distribution curve having a peak at a pore radium 80 nm or greater but less than 800 nm, and the secondary particles include primary particles of a compound represented by a structural formula including at least one element selected from As, Ge, P, Pb, Sb, Si and Sn, wherein the primary particles of the compound are present at least in an inner part of the secondary particles.01-10-2013
20130017439NONAQUEOUS SECONDARY BATTERYAANM Takahashi; KentaroAACI Sumoto-shiAACO JPAAGP Takahashi; Kentaro Sumoto-shi JP - A nonaqueous secondary battery contains di(2-propynyl) oxalate in a proportion of not less than 0.05% and not more than 3% by mass relative to the total mass of the nonaqueous electrolyte, and causing the positive electrode mixture layer to contain a silane coupling agent, or one or more coupling agents expressed by Formula (I) below, in a proportion of not less than 0.003% and not more than 3% by mass relative to the mass of the positive electrode active material:01-17-2013
20110159359NONAQUEOUS SECONDARY BATTERY - A nonaqueous electrolyte of nonaqueous secondary battery contains a nitrile group-containing compound at a concentration of 0.05% by mass or more. A positive electrode active material has an average particle diameter of 4.5 to 15.5 μm and a specific surface area of 0.13 to 0.80 m06-30-2011
20130171512Hybrid Energy Storage Devices Including Surface Effect Dominant Sites - A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nano fiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li intercalation medium. Highly reversible Li07-04-2013
20130171513MOLTEN SALT BATTERY - Provided is a molten salt battery whose cycle life is improved by using an electrolyte that is unlikely to cause corrosion of aluminum. In the molten salt battery of the present invention, the total concentration of iron ions and nickel ions contained as impurities in the electrolyte composed of a molten salt is set to be 0.1% by weight or less, preferably 0.01% by weight or less. Because of the low total concentration of iron ions and nickel ions contained in the electrolyte, corrosion of the electrode current collector composed of aluminum is inhibited, and the cycle life of the molten salt battery is improved.07-04-2013
20080254362NANO-COMPOSITE STRUCTURES, METHODS OF MAKING, AND USE THEREOF - The present invention relates to a nano-composite structure containing nanostructured carbon and nanoparticles. Also disclosed are methods of making the nano-composite structures. The present invention also relates to a lithium ion battery, a capacitor, a supercapacitor, a battery/capacitor, or a fuel cell containing the nano-composite structures of the present invention.10-16-2008
20080254361Non-Aqueous Electrolyte for Battery and Non-Aqueous Electrolyte Secondary Battery Comprising the Same - This invention relates to a non-aqueous electrolyte for a battery capable of simultaneously establishing a high flame retardance and excellent battery performances, and more particularly to a non-aqueous electrolyte for a battery comprising a non-aqueous solvent and a support salt, characterized in that the non-aqueous electrolyte for the battery further contains a fluorophosphate compound represented by the following general formula (I):10-16-2008
20080220329NEGATIVE ELECTRODE ACTIVE MATERIAL FOR AN ELECTRICITY STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME - To provide a negative electrode active material for an electricity storage device, which has considerably enhanced low-temperature characteristic, increased energy density, and increased output power. A negative electrode active material is made of a carbon composite containing carbon particles as a core and a fibrous carbon having a graphene structure, which is formed on the surfaces and/or the inside of the carbon particles, wherein the carbon composite has a volume of all mesopores within 0.005 to 1.0 cm09-11-2008
20130209869Hybrid Energy Storage Devices Including Support Filaments - A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li08-15-2013
20130095377LITHIUM CELL AND METHOD OF FORMING SAME - An electrochemical cell including an anode comprising a carbonaceous material, where the carbonaceous material is capable of reversibly incorporating lithium ions therein and lithium metal on the surface thereof, a cathode capable of reversibly incorporating therein lithium ions, and a non-aqueous electrolyte in contact with the anode and the cathode, where the ratio of the capacity to reversibly incorporate lithium ions of the cathode to the capacity to reversibly incorporate lithium ions in the form of LiC04-18-2013
20130095378NONAQUEOUS ELECTROLYTE COMPOSITION AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte composition includes: a nonaqueous solvent; an electrolyte salt; a matrix resin; a filler; and a surfactant.04-18-2013
20130095376ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY - An electrode active material for a secondary battery includes a radical compound represented by formula (1):04-18-2013
20130130101NEGATIVE ELECTRODE ACTIVE MATERIAL - A negative electrode active material and a secondary battery are provided. The negative electrode active material can be useful in maintaining excellent cell efficiency and lifespan while showing high-capacity properties, and the secondary battery may be manufactured using the negative electrode active material.05-23-2013
20080199773NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery, comprising a positive electrode having a positive-electrode active material layer reversibly inserting and extracting lithium ions on a positive-electrode current collector, a negative electrode having a negative-electrode active material layer reversibly inserting and extracting lithium ions on a negative-electrode current collector, and a nonaqueous electrolyte solution, wherein at least one of the positive and negative electrodes has a film on the surface and at least one of the positive electrode, the negative electrode and the nonaqueous electrolyte solution contains a nitrogen-containing cyclic compound. Such a nonaqueous electrolyte secondary battery is superior in high-temperature storage stability allowing preservation of favorable discharge rate even after high-temperature storage.08-21-2008
20130136981COMPONENTS FOR BATTERY CELLS WITH INORGANIC CONSTITUENTS OF LOW THERMAL CONDUCTIVITY - A lithium-ion battery cell is provided that includes at least one inorganic, multi-functional constituent that has a low thermal conductivity and is suitable for reducing or restricting thermal anomalies at least locally.05-30-2013
20110236752POWER STORAGE DEVICE - A power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material having an olivine structure which is represented by a structural formula LiFe09-29-2011
20130149602LITHIUM-ION SECONDARY ELECTROCHEMICAL CELL AND METHOD OF MAKING LITHIUM-ION SECONDARY ELECTROCHEMICAL CELL - Disclosed are lithium-ion secondary electrochemical cells and methods of making lithium-ion secondary electrochemical cells.06-13-2013
20130149603NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has a negative electrode containing graphite particles as a negative electrode active material, a positive electrode containing a lithium-containing oxide of a transition metal or a lithium-containing phosphate of a transition metal as a positive electrode active material, and a non-aqueous electrolyte in which a lithium salt is dissolved in an organic solvent. The graphite particles have an exposed crystal face and are bonded with each other to be parallel to the orientation plane of each other, and the non-aqueous electrolyte contains a phosphate ester compound represented by the following general formula (1) to which an alkynyl group is bonded and/or an unsaturated phosphate ester compound represented by the following general formula (2):06-13-2013
20090081543Microporous Polyolefin Membrane And Manufacturing Method - A microporous polyolefin membrane having a structure in which its pore size distribution curve obtained by mercury intrusion porosimetry has at least two peaks, which is produced by extruding a melt-blend of a polyolefin composition comprising (a) high density polyethylene resin having a weight average molecular weight of from about 2.5×1003-26-2009
20110274968TITANIUM COMPOSITE ELECTRODES AND METHODS THEREFORE - The present invention provides composite electrodes that comprise a titanium metal filler and a polymeric material. Advantageously the composite electrodes of the present invention do not suffer from the problems of carbon degradation, are thermally stable, are easily shaped, which demonstrate high power densities and which are relatively inexpensive to produce.11-10-2011
20130183577Cathode for a Cell of a Lithium-Ion Battery, Its Manufacturing Process and the Battery Incorporating It - The invention relates to a cathode that is usable in a cell of a lithium-ion battery comprising an electrolyte based on a lithium salt and on a non-aqueous solvent, to a process for manufacturing this cathode and to a lithium-ion battery having one or more cells incorporating this cathode. This cathode is based on a polymer composition, obtained by melt processing and without solvent evaporation, that is the product of a hot compounding reaction between an active material and additives including a polymer binder and an electrically conductive filler. According to the invention, the binder is based on at least one crosslinked elastomer and the additives furthermore comprise at least one non-volatile organic compound usable in the electrolyte solvent, the composition advantageously includes the active material in a mass fraction greater than or equal to 90%.07-18-2013
20110287313SILICON OXIDE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, MAKING METHOD, NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - A silicon oxide material is obtained by cooling and precipitating a gaseous mixture of SiO gas and silicon-containing gas and has an oxygen content of 20-35 wt %. Using the silicon oxide material as a negative electrode active material, a nonaqueous electrolyte secondary battery is constructed that exhibits a high 1st cycle charge/discharge efficiency and improved cycle performance while maintaining the high battery capacity and low volume expansion of silicon oxide.11-24-2011
20130122359POSITIVE ELECTRODE PLATE FOR USE IN LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, VEHICLE, DEVICE WITH BATTERY MOUNTED THEREON, AND METHOD FOR PRODUCING POSITIVE ELECTRODE PLATE FOR LITHIUM ION SECONDARY BATTERY - A positive electrode plate for a lithium ion secondary battery is made of aluminum and includes a positive current collecting foil made of aluminum, in which at least a main surface portion constituting a main surface is porous, a positive active material layer formed on the main surface portion of the positive current collecting foil, and a coating layer, having electrical conductivity and corrosion resistance, formed between the positive current collecting foil and the positive active material layer to directly coat the main surface of the positive current collecting foil.05-16-2013
20100221603LITHIUM ION FLUORIDE BATTERY - The present invention provides electrochemical cells capable of good electronic performance, particularly high specific energies, useful discharge rate capabilities and good cycle life. The invention includes primary and secondary batteries having positive and negative electrodes that exchange fluoride ions with an electrolyte comprising a fluoride salt and solvent.09-02-2010
20130189571ORGANIC ACTIVE MATERIALS FOR BATTERIES - A rechargeable battery includes a compound having at least two active sites, R07-25-2013
20130189572RECHARGEABLE LITHIUM BATTERY - In one aspect, a rechargeable lithium battery that includes a negative electrode including a negative active material including lithium titanium-based oxide; a positive electrode including a positive active material being capable of intercalating and deintercalating lithium; and an electrolyte is provided.07-25-2013
20120288751Electric Storage Device - Provided is an electric storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein an inorganic filler layer is disposed between the positive electrode and the negative electrode and the nonaqueous electrolyte solution contains lithium difluorobis(oxalato)phosphate.11-15-2012
20130196223ELECTRODES INCLUDING A POLYPHOSPHAZENE CYCLOMATRIX, METHODS OF FORMING THE ELECTRODES, AND RELATED ELECTROCHEMICAL CELLS - An electrode comprising a polyphosphazene cyclomatrix and particles within pores of the polyphosphazene cyclomatrix. The polyphosphazene cyclomatrix comprises a plurality of phosphazene compounds and a plurality of cross-linkages. Each phosphazene compound of the plurality of phosphazene compounds comprises a plurality of phosphorus-nitrogen units, and at least one pendant group bonded to each phosphorus atom of the plurality of phosphorus-nitrogen units. Each phosphorus-nitrogen unit is bonded to an adjacent phosphorus-nitrogen unit. Each cross-linkage of the plurality of cross-linkages bonds at least one pendant group of one phosphazene compound of the plurality of phosphazene compounds with the at least one pendant group of another phosphazene compound of the plurality of phosphazene compounds. A method of forming a negative electrode and an electrochemical cell are also described.08-01-2013
20120295154CROSS-LINKED, MICROPOROUS POLYSULFONE BATTERY ELECTRODE SEPARATOR - A cross-linked microporous polysulfone or polysulfone copolymer battery electrode separator membrane are described. Such membranes, which would otherwise be soluble above a particular, generally high temperature in selected battery electrolyte systems, once at least in part cross-linked, swell in the electrolyte at the particular higher temperature instead of dissolving. When the membrane separators are restrained between solid electrodes in a battery, the separator cannot increase in bulk volume, and the swelling occurs within the pores with the pore volume decreasing from its original bulk volume. The drop in pore volume causes the battery current density to drop, thereby reducing the heat generation within the hot area of the battery. This process provides a measure of safety against overheating and fires, and the battery is capable of continued usage if the overheating is localized.11-22-2012
20130202953MIXED PHASE LITHIUM METAL OXIDE COMPOSITIONS WITH DESIRABLE BATTERY PERFORMANCE - Mixed phase complex lithium metal oxides are described with an overall stoichiometry represented by a formula Li08-08-2013
20130202955NONAQUEOUS ELECTROLYTE FOR SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - Provided are a non-aqueous electrolyte liquid for a secondary battery, which has excellent lithium ion conductibility and voltage resistance and is suitably used in a lithium secondary battery, and a high output power lithium secondary battery containing this non-aqueous electrolyte liquid for a secondary battery. Disclosed is a non-aqueous electrolyte liquid for a secondary battery containing a metal salt containing an ion of a metal which belongs to Group 1 or Group 2 of the Periodic Table of Elements, and at least one selected from the group consisting of silicon compounds represented by the following formula (1) or formula (2).08-08-2013
20130202954MAGNESIUM BATTERY - The magnesium battery according to the present invention has a negative electrode which is composed of magnesium and a liquid-retaining section in which an aqueous electrolytic solution that can cause the elution of magnesium ions from the negative electrode can be retained. The liquid-retaining section can retain an aqueous solution of a citric acid salt as an aqueous electrolytic solution and can generate an electromotive force sustainably between the negative electrode and a positive electrode. Thus, citric acid salt ions and magnesium ions eluted from the negative electrode form a complex, thereby increasing the solubility of the magnesium ions. As a result, the precipitation of magnesium oxide in the negative electrode can be prevented and magnesium can be electrolyzed sustainably, whereby the negative electrode capacity in the magnesium battery can be sustainably high.08-08-2013
20120070728COMPOSITIONS AND DELIVERY SYSTEMS WITH LEACHABLE METAL IONS - The disclosure describes compositions and methods for producing a change in the voltage at which hydrogen gas is produced in a lead acid battery. The compositions and methods relate to producing a concentration of one or more metal ions in the lead acid battery electrolyte.03-22-2012
20120070726ELECTRODE MATERIAL, A BATTERY ELECTRODE, METHOD OF PRODUCING THEM, NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, there is provided an electrode material. The electrode material includes an active material which includes a titanium oxide compound having a monoclinic titanium dioxide crystal structure. The electrode material further includes a compound which exists on the surface of the active material and has a trialkylsilyl group represented by the formula (I).03-22-2012
20120094173MACRO-POROUS GRAPHITE ELECTRODE MATERIAL, PROCESS FOR PRODUCTION THEREOF, AND LITHIUM ION SECONDARY BATTERY - This invention provides a macroporous graphite electrode material that may be manufactured at a low temperature of 1500° C. or less and may be fast charged and discharged and a manufacturing method thereof. It also provides a lithium-ion secondary battery using this macroporous graphite electrode material.04-19-2012
20130209870Non-Aqueous Electrolyte Battery - A non-aqueous electrolyte battery providing high safety and having stable battery characteristics in which a flame retardant has little effect on the battery characteristics when the battery is in a use environment and in which flame retardance is imparted to a non-aqueous electrolyte when the battery generates an abnormal amount of heat is provided. The battery includes a non-aqueous electrolyte and a large number of flame retardant particles added to the electrolyte as the flame retardant is formed. The particles are made of a material that exists as a solid and does not perform a function of suppressing ignition when the temperature of the electrolyte is equal to or less than a reference temperature at which the electrolyte is likely to start combustion and that is at least partially liquefied and performs a function of suppressing combustion when the temperature of the non-aqueous electrolyte is more than the reference temperature.08-15-2013

Patent applications in class Include electrolyte chemically specified and method

Patent applications in all subclasses Include electrolyte chemically specified and method