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HAVING UTILITY AS A REACTIVE MATERIAL IN AN ELECTROCHEMICAL CELL; E.G., BATTERY, ETC.

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252 - Compositions

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DocumentTitleDate
20110175021PROCESS OF MAKING CATHODE MATERIAL CONTAINING NI-BASED LITHIUM TRANSITION METAL OXIDE - The present invention provides for a process of making a Ni-based lithium transition metal oxide cathode active materials used in lithium ion secondary batteries. The cathode active materials are substantially free of Li07-21-2011
20130043426SYNTHESIS STRATEGY TOWARD MICROSPHERIC CARBON COATED OFF-STOICHIOMETRIC LITHIUM-IRON-PHOSPHORUS COMPOUND MATERIALS - A cathode active material represented by the formula, LiFe02-21-2013
20100059706Lithium Iron Phosphate Cathode Material - Described are lithium iron phosphate cathode materials for lithium secondary batteries and methods of preparation thereof. Better cathode materials may be produced by two carbon processes. The first carbon process comprises mixing lithium compounds, iron compounds, phosphorous compounds and a first carbon additive, and heating the mixture to a first temperature. The second carbon process comprises adding a second carbon additive to the to the product of the first carbon process and heating the mixture to a second temperature. The cathode material so produced exhibits superior electrical properties.03-11-2010
20130043428Method For Producing Positive Electrode Active Material For Lithium Ion Batteries And Positive Electrode Active Material For Lithium Ion Batteries - The present invention provides a method for producing a high quality positive electrode active material for lithium ion batteries at low cost and at excellent production efficiency. The method for producing a positive electrode active material for lithium ion batteries includes a step of firing a powder of lithium-containing carbonate that is a precursor for positive electrode active material for lithium ion batteries in a rotary kiln. In the step, a temperature at a powder feed part inside of the rotary kiln is kept at 500° C. or more.02-21-2013
20130043427NOVOLAC-BASED C-SN MATERIALS, PRODUCTION THEREOF AND USE THEREOF IN ELECTROCHEMICAL CELLS - The present invention relates to a process for producing an Sn(II)-crosslinked novolac material, to the Sn(II)-crosslinked novolac material obtainable by the process according to the invention, to a process for producing an electroactive material comprising a carbon phase C and a tin phase and/or tin oxide phase, comprising the process for producing an Sn(II)-crosslinked novolac material and a subsequent carbonization step, to the electroactive material obtainable by the process according to the invention, and to electrochemical cells and batteries comprising the electroactive material.02-21-2013
20090194734METHOD FOR PRODUCING LITHUM-CONTAINING TRANSITION METAL OXIDE - A method for producing a lithium-containing transition metal oxide represented by the general formula: Li[Li08-06-2009
20110193016POLYIMIDE PRECURSOR SOLUTION COMPOSITION - A first polyimide precursor solution composition contains: (A) a polyamic acid; (B) a carboxylic acid compound having at least three pairs of carboxyl groups within its molecule or an esterified product thereof; and (D) a solvent. A second polyimide precursor solution composition contains the components (A), (B), and (D) of the first polyimide precursor solution composition and additionally containing (C) a carboxylic acid compound having two pairs of carboxyl groups within its molecule or an esterified product thereof. A third polyimide precursor solution composition contains the components of the second polyimide precursor solution composition, wherein the polyamic acid (A) is a polyamic acid having a specific structure.08-11-2011
20110193015PROCESS FOR PRODUCING LITHIUM IRON SULFIDE, AND PROCESS FOR PRODUCING LITHIUM TRANSITION METAL SULFIDE - A process for producing lithium iron sulfide, which is characterized by comprising: a first step of mixing an iron sulfide (a) with sulfur to produce a mixture of the iron sulfide (a) and sulfur, and subsequently burning the mixture of the iron sulfide (a) and sulfur in an inert gas atmosphere to produce an iron sulfide (b) that has an almost single phase as determined by an X-ray diffraction analysis and has a molar ratio of the content of element iron to the content of element sulfur (i.e., an Fe/S ratio) of not less than 0.90 and less than 1.00; and a second step of mixing the iron sulfide (b) with lithium sulfide to produce a mixture of the iron sulfide (b) and lithium sulfide, and subsequently burning the mixture of the iron sulfide (b) and lithium sulfide in an inert gas atmosphere to produce lithium iron sulfide represented by formula Li08-11-2011
20110193014NEGATIVE ELECTRODE MATERIAL FOR LITHIUM BATTERY, AND LITHIUM BATTERY - The present invention relates to a negative electrode material for a lithium battery comprising a carbonaceous negative electrode active substance having a specific surface area of 1 m08-11-2011
20110193013Highly Crystalline Lithium Transition Metal Oxides - A powderous lithium transition metal oxide having a layered crystal structure Li08-11-2011
20110193012METHOD FOR PREPARING CATHODE ACTIVE MATERIAL OF LITHIUM BATTERY - A method for preparing a spinel type lithium manganese oxide cathode active material, includes providing a number of manganese dioxide hollow spheres and a lithium source powder, mixing the manganese dioxide hollow spheres and the lithium source powder in a liquid medium to achieve a mixture, drying the mixture to remove the liquid medium to achieve a precursor, and sintering the precursor at a sintering temperature of about 600° C. to about 800° C. for about 3 hours to about 10 hours, to achieve a number of spinel type lithium manganese oxide hollow spheres.08-11-2011
20130037742CATHODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY MANUFACTURING METHOD THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 μm to 4 μm, and rough secondary particles having an average particle size of 6 μm to 15 μm, with an overall average particle size of 5 μm to 15 μm; where the aluminum content of fine secondary particles (metal mole ratio; SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.02-14-2013
20100117025Lithium Transition Metal Oxide Having Layered Structure - In a lithium transition metal oxide having a layered structure, one is provided, which is particularly excellent as a positive electrode active material of a battery on board of an electric vehicle or a hybrid vehicle in particular. A lithium transition metal oxide having a layered structure is proposed, wherein the ratio of the crystallite diameter determined by Measurement Method 1 according to the Rietveld method with respect to the mean powder particle diameter (D50) determined by the laser diffraction/scattering-type particle size distribution measurement method is 0.05 to 0.20.05-13-2010
20130032753POSITIVE ELECTRODE ACTIVE SUBSTANCE PRECURSOR PARTICLES, POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to positive electrode active substance particles comprising a compound having a spinel type structure comprising at least Li, Ni and Mn, and having an Li content which is controlled such that a molar ratio of Li(Ni+Mn) therein is 0.3 to 0.65, an Ni content of 5 to 25% by weight, an Na content of 0.05 to 1.9% by weight and an S content of 0.0005 to 0.16% by weight, a sum of the Na content and the S content being 0.09 to 1.9005% by weight. The positive electrode active substance particles according to the present invention can be suitably used as positive electrode active substance particles for non-aqueous electrolyte secondary batteries which can exhibit a high discharge voltage and an excellent discharge capacity.02-07-2013
20100102270Method for Preparing Lithium Iron Phosphate as a Positive Electrode Active Material for a Lithium Ion Secondary Battery - Disclosed herein is a method for preparing lithium iron phosphate as a positive electrode active material for a lithium ion secondary battery comprising drying and sintering a mixture containing a lithium source, ferric oxide, phosphoric acid, a carbon source, and a solvent, in which the solvent is water and/or water soluble organic solvent. The lithium iron phosphate prepared by the inventive method has small particle size and uniform particle size distribution, and the battery prepared from the lithium iron phosphate has high initial discharge specific capacity, and good large-current discharge property and cycle performance.04-29-2010
20090159838POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a positive electrode active material for nonaqueous electrolyte secondary batteries which contains a complex oxide mainly containing sodium, nickel and a tetravalent metal while having a hexagonal structure. This positive electrode active material enables to obtain a nonaqueous electrolyte secondary battery with high operating voltage. The complex oxide is preferably expressed as Na[Na06-25-2009
20090159839LITHIUM ION CONDUCTIVE SULFIDE-BASED SOLID ELECTROLYTE AND ALL-SOLID LITHIUM BATTERY USING SAME - A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the 06-25-2009
20100108938METHOD FOR PREPARING SPHERICAL NICKELOUS HYDROXIDE WHICH IS DOPPED AND MULTIPLE METAL OXIDES, AND LITHIUM ION SECONDARY BATTERY - The invention relates to a method for preparing multiple metal oxides and intermediate compound, i.e. spherical nickelous hydroxide which is lopped. The said intermediate compound is prepared by two steps: mixing bivalent nickel salt, cobalt salt, ammonia water and ammonium salt to form solution containing complex; then adding the said solution containing complex with the mixture solution of metal salt(s) and alkali into reaction vessel in parallel flow, stirring to form precipitate of spherical nickelous hydroxide which is dopped, and washing to remove the impurities. The resulting spherical nickelous hydroxide which is dopped, as an intermediate compound, can be used to produce multiple metal oxides. The resulting multiple metal oxides can be used as anode active material. The spherical nickelous hydroxide which is dopped, according to present invention, has advantages of uniform size and narrow size distribution. And the multiple metal oxides has high electric conductivity and cycle performance, particularly, is suitable to be used as anode material.05-06-2010
20100108939POSITIVE ELECTRODE MATERIAL FOR A LITHIUM ION ACCUMULATOR - A compound of formula Li05-06-2010
20130087737NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries, manufacturing methods thereof, and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes a compound represented by the Formula Li04-11-2013
20120181477SIOx AND VAPOR DEPOSITION MATERIAL FOR BARRIER FILM AND NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY EACH USING THE SAME - Provided is SiO07-19-2012
20100133467COMPOUND HAVING OLIVINE-TYPE STRUCTURE, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a compound having the olivine structure with which batteries having high capacity, high output, and excellent high rate performance may be produced, as well as a cathode for nonaqueous electrolyte rechargeable batteries produced with this compound, and a nonaqueous electrolyte rechargeable battery provided with this cathode. The present compound is LiFePO06-03-2010
20090302267Inorganic Compounds - The invention relates to a chemical compound of the formula Ni12-10-2009
20120217435POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to positive electrode active substance particles comprising a compound having at least a crystal system belonging to a space group of R−3m and a crystal system belonging to a space group of C2/m, and boron, wherein the compound is a composite oxide comprising at least Li, Mn, and Co and/or Ni; a relative intensity ratio [(a)/(b)] of a maximum diffraction peak intensity (a) observed at 2θ=20.8±1° in a powder X-ray diffraction pattern of the positive electrode active substance as measured using a Cu-Ka ray to a maximum diffraction peak intensity (b) observed at 2θ=18.6±1° in the powder X-ray diffraction pattern, is 0.02 to 0.5; a content of Mn in the positive electrode active substance particles is controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; and the positive electrode active substance particles comprise the boron in an amount of 0.001 to 3% by weight. The positive electrode active substance particles of the present invention are produced by calcining a mixture comprising precursor particles comprising Mn, and Ni and/or Co, a lithium compound and a boron compound at a temperature of 500 to 1500° C. The positive electrode active substance particles of the present invention can provide a secondary battery which can be improved in charge/discharge capacity and cycle characteristics.08-30-2012
20110006256CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES - The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO01-13-2011
20130112915COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY THAT INCLUDE THE COMPOSITE CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE CATHODE ACTIVE MATERIAL - A composite cathode active material, a cathode and a lithium battery that include the composite cathode active material, and a method of preparing the composite cathode active material, the composite cathode active material including a compound having an olivine crystal structure; and an inorganic material, the inorganic material including at least one selected from the group of a metal carbonitride and a carbonitride.05-09-2013
20120112126NEGATIVE ELECTRODE ACTIVE MATERIAL OF LITHIUM SECONDARY BATTERY, NEGATIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY FOR VEHICLE INSTALLATION USING THE NEGATIVE ELECTRODE ACTIVE MATERIAL AND NEGATIVE ELECTRODE, AND METHOD FOR MANUFACTURING THE NEGATIVE ELECTRODE ACTIVE MATERIAL - A negative electrode active material of lithium secondary battery includes: at least one of a petroleum-derived green coke and a coal-derived green coke; and at least one of a petroleum-derived calcined coke and a coal-derived calcined coke within a mass ratio range of 90:10 to 10:90 which are fired.05-10-2012
20120112125CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material for a lithium secondary battery, including a lithium-transition metal composite oxide represented by the following formula (1), which contains an excess of lithium, so as to exhibit enhanced rate characteristics under high rate charge/discharge conditions: Lii+aNi′bNi″cMndCoeO2 (1) wherein each of a, b, c, d and e has the same meaning as defined in the disclosure. The cathode active material according to the present invention includes an excess of lithium and, different from conventional technologies, a lithium-transition metal composite oxide containing a nickel element with a predetermined oxidation number, so that the active material exhibits a stable crystal structure and excellent rate characteristics under high rate charge/discharge conditions.05-10-2012
20090026413Compound Based on Titanium Diphosphate and Carbon, Preparation Process, and Use as an Active Material of an Electrode for a Lithium Storage Battery - A compound containing titanium diphosphate TiP01-29-2009
20110012055Compositions, zinc electrodes, batteries and their methods of manufacture - A composition, method of its preparation, and zinc electrodes comprising the composition as the active mass, for use in rechargeable electrochemical cells with enhanced cycle life is described. The electrode active mass comprises a source of electrochemically active zinc and at least one fatty acid or a salt, ester or derivative thereof, or an alkyl sulfonic acid or a salt ester or derivative thereof. The zinc electrode is assumed to exhibit low shape change and decreased dendrite formation compared to known zinc electrodes, resulting in electrochemical cells which have improved capacity retention over a number of charge/discharge cycles.01-20-2011
20130161557Nano-Sulfur Composite Anode Material for Rare Earth Lithium-Sulfur Battery and its Preparation Method Thereof - A nano-sulfur composite anode material for rare earth lithium-sulfur battery and its preparation method thereof, wherein the preparation method includes the steps of providing a carbon nanotube and sublimed sulfur, adjusting concentration based on percentage weight, mixing by milling, burning under negative pressure in Argon gas for 5 hours at 200° C.˜300° C. and 300° C.˜400° C. respectively, and obtaining a final product of nano-sulfur composite anode material for rare earth lithium-sulfur battery. By means of the preparation method of the present invention, the nano-sulfur composite anode material has a particle size <1 micron, a high capacity which is greater than 1000 mAh/g, and a long cycle life (>1000 times). The preparation method has the advantages of simple, low cost and high performance, thereby suitable for industrial production. The rare earth lithium-sulfur battery with the nano-sulfur composite anode material has the advantageous features of high energy density, high cycle performance, environmental friendly and low cost.06-27-2013
20130161558LITHIUM-TITANIUM COMPLEX OXIDE, AND BATTERY ELECTRODE AND LITHIUM ION SECONDARY BATTERY CONTAINING SAME - A lithium-titanium complex oxide in a particulate form whose main ingredient is Li06-27-2013
20130214200PARTICLE SYNTHESIS APPARATUS AND METHODS - Apparatus and methods of forming a battery-active material are described. An apparatus includes a first processing section that raises the temperature of a precursor material to a reaction threshold temperature, a second processing section that converts the precursor material to a battery-active material, and a third processing section that cools the resulting battery-active material. Each of the processing sections may be a continuous flow tubular component. The first and third processing sections may be metal, and the second processing section may be a refractory material for high temperature service. The battery-active material is collected using a solids collector.08-22-2013
20130214201PROCESS FOR THE PREPARATION OF POROUS CRYSTALLINE LITHIUM-, VANADIUM AND PHOSPHATE-COMPRISING MATERIALS - The present invention relates to a process for the preparation of compounds of general formula (I)08-22-2013
20090008602POSITIVE-ELECTRODE ACTIVE MATERIAL POWDER - The present invention provides a positive-electrode active material powder, which comprises a granular material (A) capable of doping/dedoping lithium ions and a deposit (B) placed on the surface of the material in a granular or layered form (herein, the material (A) and the deposit (B) are not the same), the percentage of [volumetric sum of particles having a particle diameter of 1 μm or less]/[volumetric sum of entire particles] being 5% or less.01-08-2009
20120235082PYROPHOSPHATE COMPOUND AND PRODUCTION PROCESS THEREOF - To provide a positive electrode active material containing a pyrophosphate compound, ensuring that mixing of impurities is easily prevented to facilitate the synthesis and a high capacity battery is obtained, and a lithium ion battery using the positive electrode material. That is, the present invention relates to a pyrophosphate compound represented by the formula: Li09-20-2012
20110017946CATHODE ACTIVE MATERIAL, CATHODE INCLUDING CATHODE ACTIVE MATERIAL, AND LITHIUM BATTERY INCLUDING CATHODE - A cathode active material including a spinel lithium manganese composite oxide represented by Formula 1 below, a cathode including the cathode active material, and a lithium battery including the cathode:01-27-2011
20110042609CATHODE ACTIVE MATERIAL, CATHODE INCLUDING THE CATHODE ACTIVE MATERIAL, LITHIUM BATTERY EMPLOYING THE CATHODE, AND METHOD OF PREPARING THE SAME - A cathode active material including: a lithium metal oxide core represented by Formula 1 below; and an oxide coating layer formed on the lithium metal oxide core:02-24-2011
20110278495PROCESS OF PREPARING ALKALI METAL TITANATES - A lithium titanate product, the formula of which is in the form of Li11-17-2011
20090189114PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.07-30-2009
20110024676ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL - Silicon oxide based composite anode active materials including amorphous silicon oxides are provided. In one embodiment, the amorphous silicon oxide is represented by SiO02-03-2011
20100176337Process for producing nano graphene reinforced composite particles for lithium battery electrodes - A process for producing solid nanocomposite particles for lithium metal or lithium ion battery electrode applications is provided. In one preferred embodiment, the process comprises: (A) Preparing an electrode active material in a form of fine particles, rods, wires, fibers, or tubes with a dimension smaller than 1 μm; (B) Preparing separated or isolated nano graphene platelets with a thickness less than 50 nm; (C) Dispersing the nano graphene platelets and the electrode active material in a precursor fluid medium to form a suspension wherein the fluid medium contains a precursor matrix material dispersed or dissolved therein; and (D) Converting the suspension to the solid nanocomposite particles, wherein the precursor matrix material is converted into a protective matrix material reinforced by the nano graphene platelets and the electrode active material is substantially dispersed in the protective matrix material. For a lithium ion battery anode application, the matrix material is preferably amorphous carbon, polymeric carbon, or meso-phase carbon. Such solid nanocomposite particles provide a high anode capacity and good cycling stability. For a cathode application, the resulting lithium metal or lithium ion battery exhibits an exceptionally high cycle life.07-15-2010
20110315918Positive Electrode Composition for Nonaqueous Electrolyte Secondary Battery, And Method For Producing Positive Electrode Slurry Using The Positive Electrode Composition - A positive electrode composition that has improved output power characteristics and low costs, and is also easily handled upon production of a positive electrode, and exhibits an improved yield is provided.12-29-2011
20110315917CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a lithium transition metal oxide having an α-NaFeO12-29-2011
20090206299SOLVENTS AND NOVEL ELECTROLYTIC COMPOSITIONS HAVING A LARGE RANGE OF STABILITY AND HIGH CONDUCTIVITY - The present invention is concerned with novel polar solvents and novel electrolytic compositions comprising such solvents, and having a high range of stability, as required for applications in the field of electrochemistry. The present solvents have a highly polar amide function, and preferably combine with a salt soluble in the solvent and having an anion with a delocalized charge, and at least one polymer, to form an electrolytic composition.08-20-2009
20110297875METHOD FOR MAKING LITHIUM BATTERY CATHODE MATERIAL - A method for making a lithium battery cathode material is disclosed. A mixed solution including a solvent, an iron salt material, a vanadium source material and a phosphate material is provided. An alkaline solution is added in the mixed solution to make the mixed solution have a pH value ranging from about 1.5 to 5. The iron salt, the vanadium source material and the phosphate material react with each other to form a plurality particles of iron phosphate precursor doped with vanadium which are added in a mixture of a lithium source solution and a reducing agent to form a slurry of lithium iron phosphate precursor doped with vanadium. The slurry of lithium iron phosphate precursor doped with vanadium is heat-treated.12-08-2011
20120012781CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a lithium transition metal oxide having an α-NaFeO01-19-2012
20110291044NICKEL-COBALT-MANGANESE MULTI-ELEMENT LITHIUM ION BATTERY CATHODE MATERIAL WITH DOPANTS AND ITS METHODS OF PREPARATION - The present invention discloses a high compact density nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and methods of its preparation. A preparation method of this battery cathode material is as follows: (A) preparing a nickel-cobalt-manganese multi-element intermediate with dopants by co-precipitation or chemical synthesis; (B) preparing a mixture by mixing said multi-element intermediate with a lithium salt; (C) pre-treating the said mixture, then adding into it polyvinyl alcohol and mixing uniformly; (D) pressing the resulting material into lumps, calcining the lumps at 800˜950° C., cooling after its removal from the furnace, crushing, passing through a 400 mesh sieve; (E) calcining the resulting power at 700˜800° C., cooling after its removal from the furnace, crushing and sieving to obtain a product. The lithium battery cathode material obtained using the above-described method has the formula LiNi12-01-2011
20110291043Aluminum Substituted Mixed Transition Metal Oxide Cathode Materials for Lithium Ion Batteries - A mixed transition metal oxide is provided described wherein Aluminum is partially substituted for Cobalt in a Li[Ni12-01-2011
20110291042CATHODE ACTIVE MATERIAL FOR LITHIUM BATTERY AND METHOD FOR MAKING THE SAME - The present disclosure relates to a cathode active material for lithium battery including a metal oxide represented by a formula of LiNi12-01-2011
20110291041METHOD FOR SINTERING LITHIUM CONTAINED ELECTRODE MATERIAL - A method for sintering lithium contained electrode material includes: depositing a mixture of a particle like lithium compound and a substance M in a metal container, where M is a chemical element selected from a group consisting of iron (Fe), phosphor (P), cobalt (Co), nickel (Ni), manganese (Mn), vanadium (V), and carbon (C), or an oxide or compound thereof; subjecting the mixture deposited in the metal container to heat treatment by heating the metal container in two phases of which temperature ranges for heating are respectively 300-700° C. and 500-900° C.; and grinding the mixture so heat-treated to obtain a powder like lithium contained electrode material. According to the method of the present invention, in the process of sintering and synthesis, it is not necessary to supply an external (or a great amount of) protective gas, so that substantial reduction of processing cost and time is realized.12-01-2011
20110084229POWDER MATERIAL, ELECTRODE STRUCTURE USING THE POWDER MATERIAL, AND ENERGY STORAGE DEVICE HAVING THE ELECTRODE STRUCTURE - A powder material which can electrochemically store and release lithium ions rapidly in a large amount is provided. In addition, an electrode structure for an energy storage device which can provide a high energy density and a high power density and has a long life, and an energy storage device using the electrode structure are provided. In a powder material which can electrochemically store and release lithium ions, the surface of particles of one of silicon metal and tin metal and an alloy of any thereof is coated by an oxide including a transition metal element selected from the group consisting of W, Ti, Mo, Nb, and V as a main component. The electrode structure includes the powder material. The battery device includes a negative electrode having the electrode structure, a lithium ion conductor, and a positive electrode, and utilizes an oxidation reaction of lithium and a reduction reaction of lithium ion.04-14-2011
20110297876POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES WITH NONAQUEOUS ELECTROLYTIC SOLUTION, PROCESS FOR THE PRODUCTION OF THE ACTIVE MATERIAL, AND SECONDARY BATTERIES WITH NONAQUEOUS ELECTROLYTIC SOLUTION - The present invention relates to positive electrode active substance particles for lithium ion batteries, comprising lithium manganate particles comprising Li and Mn as main components and having a cubic spinel structure (Fd-3m), wherein primary particles of the positive electrode active substance have a dodecahedral or higher-polyhedral shape in which none of crystal planes equivalent to the (111) plane are located adjacent to each other, and flat crystal planes are crossed with each other to form a clear ridge, and an average primary particle diameter of the primary particles is not less than 1 μm and not more than 20 μm. The positive electrode active substance particles according to the present invention are excellent in packing property, load characteristics and high-temperature stability.12-08-2011
20120097890High Voltage Negative Active Material for a Rechargeable Lithium Battery - The invention relates to active material for the negative electrode of secondary rechargeable lithium batteries, wherein the active material is based on doped or undoped carbon-bearing lithium titanium ramsdellite oxide with general formula Li04-26-2012
20100032614METAL-VANADIUM-OXIDE PRODUCT AND PRODUCING PROCESS - A method for making a metal-vanadium oxide product includes selecting a metal, the group Au, Ag, Cu and Pt, providing nanotubular vanadium oxide composed of vanadium oxide layers separated by templating molecules, and producing a product by ionic change of the nanotubular vanadium oxide with a solution of the salt of the metal. The salt is selected from the group AuCl02-11-2010
20100163790OXIDE COATINGS ON LITHIUM OXIDE PARTICLES - The present invention generally relates to unique coatings for use with energy storage particles, such as lithium oxide energy storage materials. The invention provides unique coatings for particles, unique particle/coating combinations, and unique methods for making coatings and/or coated particles. In one aspect of the invention, a particle is formed having a core and a coating. The particle may comprise a core having a material such as LiFePO07-01-2010
20090121179Positive Electrode Material for Secondary Battery and the Preparation Method Thereof - The present invention relates to a positive electrode material for secondary battery and the preparation method thereof, wherein the said positive electrode material comprises Li05-14-2009
20090152492THERMOELECTRIC MATERIAL AND PROCESS OF PRODUCING THE SAME - A p or n type thermoelectric material containing, as constituent elements, at least one of Bi and Sb and at least one of Te and Se. The n type one may further contain at least one element selected from I, Cl, Hg, Br, Ag, and Cu. The thermoelectric material has a sea-island microstructure, in which the sea phase is crystal grains having an average grain size of 5 μm or smaller with their c-axes aligned unidirectionally, and the island phase is elongated crystal gains with an average length of 06-18-2009
20090146102Cathode material for Li-ion battery applications - A family of Li-ion battery cathode materials and methods of synthesizing the materials. The cathode material is a defective crystalline lithium transition metal phosphate of a specific chemical form. The material can be synthesized in air, eliminating the need for a furnace having an inert gas atmosphere. Excellent cycling behavior and charge/discharge rate capabilities are observed in batteries utilizing the cathode materials.06-11-2009
20110079752ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is an electrode active material comprising a nickel-based lithium transition metal oxide (LiMO04-07-2011
20100123096METHOD OF MAKING ACTIVE MATERIAL AND ELECTRODE - There is provided a method of making an active material with satisfactory cycle characteristics. The method of making an active material according to the invention comprises contacting an aqueous solution containing a metal-fluoro complex and lithium salt with lithium-containing metal oxide particles.05-20-2010
20100078591ACTIVE MATERIAL AND METHOD OF MANUFACTURING ACTIVE MATERIAL - An active material capable of forming an electrochemical device excellent in its discharge capacity and rate characteristic is provided. The active material in accordance with a first aspect of the present invention comprises a compound particle containing a compound having a composition represented by the following chemical formula (1), a carbon layer covering the compound particle, and a carbon particle. The active material in accordance with a second aspect of the present invention comprises a carbon particle and a compound particle having an average primary particle size of 0.03 to 1.4 μm, being carried by the carbon particle, and containing a compound represented by the following chemical formula (1):04-01-2010
20110062378CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material based on lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide has a nickel content of at least 40% among overall transition metals and is coated with a polymer having a melting point of 80 to 300° C. at a surface thereof. A lithium secondary battery having the disclosed cathode active material has advantages of not deteriorating electrical conductivity while maintaining high temperature stability, so as to efficiently provide high charge capacity.03-17-2011
20110062380PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium−ion reversible electrode material, which includes providing a precursor of said lithium−ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium−ion reversible electrode materials obtained by the aforesaid process.03-17-2011
20110062379NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY - A negative electrode comprising (A) particles having Si dispersed in SiO, and (B) a polyamide-imide resin which contains amide and imide groups in an amide/imide ratio of 25/75 to 99/1 and has a weight average molecular weight of 10,000-200,000 is suited for nonaqueous electrolyte secondary batteries. The electrode exhibits a high 1st cycle charge/discharge efficiency and improved cycle performance while maintaining a high battery capacity and a low volume expansion.03-17-2011
20090272940Li-Ni COMPOSITE OXIDE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL - The present invention relates to Li—Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a large charge/discharge capacity, an excellent packing density and excellent storage performance. The Li—Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a composition represented by the formula:11-05-2009
20110198532LITHIUM-CONTAINING TRANSITION METAL SULFIDE COMPOUNDS - The present invention provides a convenient process for making lithium-containing transition metal sulfides involving heating at least on transition metal sulfide with a lithium-containing compound, wherein the lithium-containing compound is selected from one or more of lithium oxide, lithium sulfate, lithium carbonate, anhydrous lithium hydroxide, lithium hydroxide monohydrate, lithium oxalate, lithium nitrate, and any material that is a precursor for any of these lithium-containing compounds.08-18-2011
20090278083POLYELECTROLYTE MEMBRANES COMPRISED OF BLENDS OF PFSA AND SULFONATED PFCB POLYMERS - A polymer blend useful as an ion conductor in fuel cells includes a first polymer having a cyclobutyl moiety and a second polymer include a sulfonic acid group.11-12-2009
20110168944CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material for a lithium secondary battery, including a lithium-transition metal composite oxide represented by the following formula (1), which contains an excess of lithium, so as to exhibit enhanced rate characteristics under high rate charge/discharge conditions: Lii+aNi′bNi″cMndCoeO2 (1) wherein each of a, b, c, d and e has the same meaning as defined in the disclosure. The cathode active material according to the present invention includes an excess of lithium and, different from conventional technologies, a lithium-transition metal composite oxide containing a nickel element with a predetermined oxidation number, so that the active material exhibits a stable crystal structure and excellent rate characteristics under high rate charge/discharge conditions.07-14-2011
20090283716Method for Producing a Fuel Cell Electrode, Involving Deposition on a Support - The invention relates to a method for producing carbon electrodes by deposition on a substrate, to produce a fuel cell. The method comprises the steps of alternately and/or simultaneously depositing porous carbon and a catalyst onto the substrate by plasma spaying in a vacuum chamber. The catalyst is used to accelerate at least one of the chemical reactions that takes place in the fuel cell. The thickness of each layer of porous carbon is chosen so that the catalyst deposited on this carbon layer is distributed essentially throughout this layer, thereby by providing a layer of catalyzed carbon. The total thickness of catalyzed carbon in the electrode is less than 2 micrometers, and preferably equal to no more than 1 micrometer.11-19-2009
20090289218LITHIUM-MANGANESE COMPOSITE OXIDES FOR LITHIUM ION BATTERY AND PROCESS FOR PREPARING SAME - A lithium-manganese composite oxide for a lithium ion battery having a good cycle property at high-temperature and battery property of high capacity is provided.11-26-2009
20090278082CATHODE ACTIVE MATERIAL AND PROCESS FOR PRODUCING THE SAME - It is an object of the present invention to provide a cathode active material capable of reducing degradation in an operation voltage and capacity as compared conventionally when used for a lithium ion secondary battery, and a method for manufacturing the same. The cathode active material contains a composite oxide of lithium and a transition metal (s), wherein a reduction loss of TLC in the composite oxide is 20 to 60%. Also, the composite oxide has a particle diameter of 0.5 to 100 μm, and is preferably fluorinated. The method for manufacturing the cathode active material includes the step of fluorinating the cathode active material. The composite oxide has a particle diameter of 0.5 to 100 μm. The fluorinating step is to fluorinate the composite oxide in a reaction vessel under conditions where fluorine gas partial pressure is 1 to 200 kPa, a reaction time is 10 minutes to 10 days, and a reaction temperature is −10 to 200° C.11-12-2009
20130099159PRODUCTION OF METAL OR METALLOID NANOPARTICLES - One embodiment may include a method of making nanoparticles comprising elemental metals or metalloids and/or alloys thereof. The method may include reducing a metal halide or a metalloid halide with an alkali metal to produce a reaction product comprising particles of the desired metal or metalloid and a halide salt. One embodiment may include introducing reactants to each other in the presence of a non-reactive solvent and/or inducing cavitation in the reactants and/or the non-reactive solvent when present. Certain metals or metalloids such as tin, aluminum, silicon, antimony, indium or bismuth may be useful in electrochemical cells such as lithium-ion cells when produced by these illustrative methods. One embodiment of a battery electrode may include nanoparticles that may be produced by these or other methods.04-25-2013
20110204284CARBON ELECTRODE BATCH MATERIALS AND METHODS OF USING THE SAME - The disclosure relates to carbon electrode batch materials and methods of using and products of the same. In particular, the disclosure relates to batch materials for forming carbon electrodes comprising at least one activated carbon, at least one binder, and a carrier substantially comprising water. The disclosure further relates to methods comprising extruding said batch materials.08-25-2011
20090261292METHOD FOR PRODUCING BATTERY ELECTRODES, ELECTRODES PRODUCED BY THIS METHOD, AND BATTERIES CONTAINING SUCH ELECTRODES - A method for producing at least one lead battery electrode, comprising the step of disposing an active paste on a support in such a manner as to form said electrode, and locating said electrode in a controlled atmosphere environment to expose said electrode to a gas enriched in ozone, characterised in that said electrode is exposed to an ozone-enriched gas of flow rate less than 100 litres per hour for each square metre of surface of said electrode.10-22-2009
20120292560METHOD FOR PRODUCING LITHIUM IRON PHOSPHATE - A method of producing lithium iron phosphate includes adding iron particles containing 0.5 mass % or more of oxygen to an aqueous solution containing a phosphoric acid, a carboxylic acid and a lithium source, and causing components contained in the aqueous solution and the iron particles to react with each other under an oxidizing atmosphere and thereby form a reaction liquid; drying the reaction liquid to form a lithium iron phosphate precursor; and baking the lithium iron phosphate precursor under a non-oxidizing atmosphere to obtain the lithium iron phosphate.11-22-2012
20120292562Positive Electrode Active Material For Lithium Ion Battery, Positive Electrode For Lithium Ion Battery, And Lithium Ion Battery - The present invention provides a positive electrode active material for a lithium ion battery with excellent battery characteristics can be provided. The positive electrode active material for a lithium ion battery is represented by the following composition formula:11-22-2012
20120292561POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING SAME AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME - A positive electrode active material for non-aqueous electrolyte secondary battery composed of a lithium nickel composite oxide having high capacity and superior heat stability, a production method that is suitable for its industrial production, and a non-aqueous electrolyte secondary battery having high safety. The positive electrode active material for non-aqueous electrolyte secondary battery includes a lithium nickel composite oxide having by the following general formula (1):11-22-2012
20120261610Core-Shell Lithium Transition Metal 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 LiF layer, where this layer consists of a reaction product of a fluorine-containing polymer and the primary particle surface. The lithium of the LiF originates from the primary particles surface. Examples of the fluorine-containing polymer are either one of PVDF, PVDF-HFP or PTFE. Examples of the lithium transition metal oxide are either one of —LiCo10-18-2012
20090166579Electrolyte Membrane and Method of Selecting the Same - The present invention is to provide an electrolyte membrane which retains durability even after having undergone a dimensional change accompanying chemical deterioration caused owing to radicals having high oxidizing ability such as hydroxyl radicals (.OH) or peroxide radicals (.OOH), and the selecting method thereof.07-02-2009
20080302999Negative Active Material for Rechargeable Lithium Battery, Method of Preparing Same and Rechargeable Lithium Battery - Disclosed is a negative active material for a rechargeable lithium battery comprising a Si phase, a SiM phase and at least one of a X phase and a SiX phase, wherein each of phases has a crystal grain size of 100 nm and 500 nm. The element M is at least one selected from the group consisting of Ni, Co, B, Cr, Cu, Fe, Mn, Ti, and Y, the element X is at least one selected from the group consisting of Ag, Cu, and Au. However, where M is Cu, X is not Cu.12-11-2008
20100276632Alkali/Transition Metal Halo-And Hydroxy-Phosphates And Related Electrode Active Materials - The invention provides a novel polyanion-based electrode active material for use in a secondary or rechargeable electrochemical cell, wherein the electrode active material is represented by the general formula A11-04-2010
20120043499NOVEL PRECURSOR FOR THE PREPARATION OF A LITHIUM COMPOSITE TRANSITION METAL OXIDE - Provided is a transition metal precursor comprising a composite transition metal compound represented by Formula 1, as a transition metal precursor used in the preparation of a lithium-transition metal composite oxide:02-23-2012
20130119306COMPOSITE, METHOD OF MANUFACTURING THE COMPOSITE, NEGATIVE ELECTRODE ACTIVE MATERIAL INCLUDING THE COMPOSITE, NEGATIVE ELECTRODE INCLUDING THE NEGATIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A composite, method of manufacturing the composite, negative electrode active material including the composite, negative electrode including the negative electrode active material, and lithium secondary battery including the same, the composite including a lithium titanium oxide, and a bronze phase titanium oxide.05-16-2013
20130119307LITHIUM COMPOSITE COMPOUND PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AWUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention aims to provide lithium composite compound particles which can exhibit good cycle characteristics and an excellent high-temperature storage property when used as a positive electrode active substance of a secondary battery, and a secondary battery using the lithium composite compound particles. The present invention relates to lithium composite compound particles having a composition represented by the compositional formula: Li05-16-2013
20110006253HIGHLY REVERSIBLE LITHIUM INTERCALATING ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, ELECTRODE AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an electrode active material, having a composition of SnPx (0.9≦x≦0.98), an electrode comprising the same, and a lithium secondary battery comprising the electrode. Also disclosed is a method for preparing an electrode active material having a composition of SnPx (0.9≦x≦0.98), the method comprising the steps of: preparing a mixed solution of a Sn precursor, trioctyl phosphine (TOP) and trioctyl phosphine oxide (TOPO); and heating the solution. The application of the teardrop-shaped single-crystal SnPO-94 particles as an anode active material for lithium secondary batteries can provide an anode having very excellent cycling properties because the active material has a reversible capacity, which is about two times as large as that of a carbon anode, along with a very low irreversible capacity, and it is structurally very stable against Li ion intercalation/deintercalation in a charge/discharge process, indicating little or no change in the volume thereof.01-13-2011
20110006254PROCESS TO MAKE ELECTROCHEMICALLY ACTIVE/INACTIVE NANOCOMPOSITE MATERIAL - A process for making an first material/second material nanocomposite is disclosed. The process can include providing a precursor that contains an electrochemically active and an electrochemically inactive material. Thereafter, the precursor can be suspended in an aerosol gas to produce an aerosol and a plasma having a high field zone can be provided. The aerosol can be passed through the high field zone of the plasma and result in the vaporization of at least part of the precursor in the aerosol. The precursor that has been vaporized in the high field zone is subsequently removed therefrom and allowed to condense into an first material/second material nanocomposite with at least one electrochemically active material.01-13-2011
20090090891Aromatic Compound Gelling Agent Having Perfluoroalkyl Group - Aromatic compounds having a perfluoroalkyl group and a gelling agent for gelling an organic liquid which is composed of any one of them. This gelling agent can gel many kinds of organic liquids by adding a small amount thereof.04-09-2009
20100140540Method For Producing Positive Electrode Material For Secondary Battery - The present invention has features in that a lithium transition metal silicate obtained by sintering a mixture containing a transition metal compound containing at least one transition metal selected from the group consisting of Mn, Fe, Co and Ni; a lithium compound; and a silicon-based polymer compound, is used as a positive electrode material for a secondary battery. The lithium transition metal silicate of the present invention has a high lithium occlusion and release efficiency per unit amount of a transition metal. A secondary battery in which the cost is low, stability and safety are high, and superior charge and discharge characteristics are exhibited can be provided.06-10-2010
20100193730POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY - A method for manufacturing positive electrode active material includes: forming a fluorine-based coat film on a surface of a positive electrode active material by subjecting the positive electrode active material to a fluorine treatment; and forming a fluorine-oxygen-containing active material layer that contains fluorine and oxygen on the surface of the positive electrode active material by firing the fluorine-based coat film under an oxygen atmosphere.08-05-2010
20120068109CATHODE MATERIAL FOR SECONDARY LITHIUM BATTERIES AND PREPARATION METHOD - In the invention, a cathode material for secondary lithium batteries was disclosed. It is a material with composite structures formed with more than two different components selected from a general formula [Li03-22-2012
20120068108PROCESS FOR PREPARING MODIFIED MIXED TRANSITION METAL OXIDES - A process for preparing modified mixed transition metal oxides, which comprises treating a precursor of a mixed oxide which comprises lithium and at least two transition metals as cations with at least one substance which is selected from compounds of phosphorus, silicon, titanium, boron or aluminum having at least one phenoxy or alkoxy group or at least one halogen.03-22-2012
20120068107RECOVERY AND SYNTHESIS METHOD FOR METALOXIDIC CATHODIC ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY - Disclosed are a recovery for a metaloxidic cathodic active material for a lithium ion secondary battery and a synthesis thereof by the recovery method, wherein the recovery method includes (a) dissolving a cathodic active material from a waste lithium ion secondary battery using sulfuric acid solution containing sulfurous acid gas to generate a solution containing metal ions, (b) injecting sodium hydroxide solution and ammonia solution in the solution containing the metal ions to fabricate an electrode active material precursor, and (c) filtrating the active material precursor, followed by drying and grinding, thus to fabricate a solid-state cathodic active material precursor, and the synthesis method is achieved by mixing the electrode active material precursor fabricated according to the recovery method with lithium carbonate or lithium hydroxide, followed by heat treatment, to generate a metaloxidic cathodic active material.03-22-2012
20090050841POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a positive electrode active material for a non-aqueous electrolyte secondary battery, comprising a complex oxide containing M02-26-2009
20120267566LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL - Provided is a positive electrode material for a lithium ion secondary battery, including a crystallized glass powder including an olivine-type crystal represented by General Formula LiM10-25-2012
20110220842ACID-TREATED MANGANESE DIOXIDE AND METHODS OF MAKING THEREOF - A primary battery includes a cathode having an acid-treated manganese dioxide, an anode, a separator between the cathode and the anode, and an alkaline electrolyte.09-15-2011
20090101865Electrode Material for a Lithium Secondary Battery, Lithium Secondary Battery, and Preparation Method for the Electrode Material for a Lithium Secondary Battery - Disclosed is an electrode material for a lithium secondary battery, a lithium secondary battery comprising the same, and a method for preparing the electrode material for a lithium secondary battery. The electrode material for a lithium secondary battery includes Si as a principal component, wherein the interplanar spacing of an Si (111) surface is between 3.15 Å and 3.20 Å using X-ray diffraction. This is achieve by first alloying Si with an element selected from the group consisting of Al, B, P, Ge, Sn, Pb, Ni, Co, Mn, Mo, Cr, V, Cu, Fe, Ni, W, Ti, Zn, alkali metals, alkaline earth metals, and combinations thereof, and then eluting X from the resulting alloy.04-23-2009
20110140036CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO06-16-2011
20110226985CATHODE ACTIVE MATERIAL, CATHODE INCLUDING THE SAME, AND LITHIUM BATTERY INCLUDING CATHODE - A cathode active material including a lithium metal oxide represented by Formula 1 below:09-22-2011
20090200510METHOD OF MANUFACTURING CATHODE ACTIVE MATERIAL - A method of manufacturing a cathode active material is provided. The method includes the step of precipitating step for providing a solution of a deposition component onto composite oxide particles including lithium Li and nickel Ni, removing a solvent from the solution on the composite oxide particles within a short time period, and precipitating the deposition component on surfaces of the composite oxide particles; and heating step for heating under an oxidation atmosphere the composite oxide particles with the deposition component precipitated on the surfaces.08-13-2009
20090230349METHOD OF PRODUCING LITHIUM ION CATHODE MATERIALS - A method of producing Li09-17-2009
20090224201Process of making cathode material containing Ni-based lithium transition metal oxide - The present invention provides for a process of making a Ni-based lithium transition metal oxide cathode active materials used in lithium ion secondary batteries. The cathode active materials are substantially free of Li09-10-2009
20120104312NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - The present invention relates to negative active materials for rechargeable lithium batteries, manufacturing methods thereof, and rechargeable lithium batteries including the negative active materials. A negative active material for a rechargeable lithium battery includes a core including a material capable of carrying out reversible oxidation and reduction reactions and a coating layer formed on the core. The coating layer has a reticular structure.05-03-2012
20120104311Non-Homogenous Positive Electrode Materials Combining High Safety and High Power in a Li Rechargeable Battery - The invention relates to a Li05-03-2012
20090242830ANODE POWDERS FOR BATTERIES - Methods and compositions relate to anode powders for use in batteries. The powders may provide limited surface area per volume of powder material. Further, the powders may include limited amounts of particles below a threshold size within a particle size distribution. Some embodiments utilize regular or anode grade petroleum coke as a precursor.10-01-2009
20110226986Ni-, Co-, and Mn- MULTI-ELEMENT DOPED POSITIVE ELECTRODE MATERIAL FOR LITHIUM BATTERY AND ITS PREPARATION METHOD - A Ni—, Co—, and Mn— multi-element doped positive electrode material for lithium ion batteries and its preparation method are provided. The method for preparing said material consists of: first forming a Ni—, Co—, and Mn— multi-element doped intermediate compound by coprecipitation or chemical synthesis; mixing said multi-element intermediate compound with lithium salt and pre-processing the resulting mixture; adding polyvinyl alcohol into the mixture and mixing uniformly, then pressing the resulting mixture into blocks, and calcining these at 800˜930° C.; cooling outside the furnace, crushing and passing through a 400-mesh sieve; calcining the resulting powder at 700˜800° C., cooling outside the furnace and crushing to obtain the product. The positive electrode material obtained by the method described is in the form of non-agglomerated monocrystal particles, with a particle diameter of 0 5˜30 μm, the chemical formula LiNi09-22-2011
20090127504POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF PREPARING SAME - Disclosed in a positive active material for a lithium secondary battery including a compound represented by formula 1 and having a 10% to 70% ratio of diffracted intensity of diffraction lines in 2θ=53° (104 plane) with respect to diffracted intensity of diffraction lines in the vicinity of 2θ=22° (003 plane) in X-ray diffraction patterns using a CoKα-ray,05-21-2009
20100012886Cathode Active Material and Lithium Secondary Battery Containing Them - Provided is a high-power, non-aqueous electrolyte lithium secondary battery having a long lifespan and superior safety at both room temperature and high temperatures, even after repeated high-current charging and discharging. The battery comprises a mixture of a manganese spinel oxide and a lithium/nickel/cobalt/manganese composite oxide, as a cathode active material.01-21-2010
20100148115CATHODE 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), 1.106-17-2010
20090314985PULVERULENT COMPOUNDS, A PROCESS FOR THE PREPARATION THEREOF AND THE USE THEREOF IN LITHIUM SECONDARY BATTERIES - The present invention relates to pulverulent compounds of the formula Li12-24-2009
20090314984ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - There is provided a method for producing an active material for a nonaqueous secondary battery, including firing an adherend in which a compound containing an element A (at least one element selected from among B, Al, Ga, In, Si, Ge, Sn, Mg and transition metal elements) is adhered to a particle surface of a material capable of being doped and dedoped with lithium ions, in a water-containing atmosphere so that weight increasing rate of the adherend is in a range of 0.1% by weight or more and 5.0% by weight or less, and firing the adherend.12-24-2009
20100187471COMPOSITE PRECURSOR FOR ALUMINUM-CONTAINING LITHIUM TRANSITION METAL OXIDE AND PROCESS FOR PREPARATION OF THE SAME - The present invention provides a powdery composite precursor, which comprises a core of a lithium transition metal oxide, and an aluminum hydroxide-based precipitate layer coated on the surface of the core, and a process to prepare the composite precursor. The preparation process comprises the formation of a water based slurry by dispersing lithium transition metal oxide powder in water, and a precipitation reaction of an aluminum salt solution with a base solution where the lithium transition metal particles act as seed particles, whereby a mechanically stable precipitate layer of homogeneous thickness can be achieved. The composite precursor can be converted into aluminum-containing, e.g., aluminum-doped, lithium transition metal oxide suitable for a cathode active material of lithium rechargeable battery by heat treatment.07-29-2010
20100258761ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL - An anode active material comprises metal core particles, metal nano wires formed on the metal core particles, pores between the metal core particles and the metal nano wires, and a carbon-based coating layer formed on a surface of the metal core particles and metal nano wires. In the anode active material according to the present invention, the metal core particles and metal nano wires are combined to form a single body, and a carbon-based coating layer is formed on the surface of the metal nano wires and metal core particles. Thus, volume changes in the pulverized metal core particles can be effectively buffered during charging and discharging, and the metal core particles are electrically connected through the metal nano wires. As a result, volume changes in the anode active material and degradation of the electrode can be prevented, thereby providing excellent initial charge/discharge efficiency and enhanced charge/discharge capacity.10-14-2010
20120032109ELECTROACTIVE MATERIAL, AND USE THEREOF IN ANODES FOR LITHIUM-ION CELLS - The present invention relates to a novel electroactive material which comprises a graphitic carbon phase C and a (semi)metal phase and/or a (semimetal) oxide phase (MO02-09-2012
20100213407NIOBIUM MONOXIDE POWDER, NIOBIUM MONOOXIDE SINTERED BODY AND CAPACITOR USING THE SINTERED BODY - (1) A niobium monoxide powder for a capacitor represented by formula: NbO08-26-2010
20100148114POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD OF PRODUCING THE SAME AND NONAQUEOUS ELECTROLYTE BATTERY HAVING POSITIVE ELECTRODE CONTAINING POSITIVE ELECTRODE ACTIVE MATERIAL - The present invention provides an olivine-type positive electrode active material that is an inexpensive and very safe positive electrode active material that also exhibits excellent battery properties even at high energy densities. The present invention also provides a method of producing this olivine-type positive electrode active material and a nonaqueous electrolyte battery that has a positive electrode that contains this olivine-type positive electrode active material. The present invention relates to a positive electrode active material that comprises an olivine-type lithium manganese phosphate compound represented by the following general formula (1)06-17-2010
20100243951NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, MAKING METHOD AND LITHIUM ION SECONDARY BATTERY - A negative electrode material comprising composite particles having silicon nano-particles dispersed in silicon oxide is suited for use in nonaqueous electrolyte secondary batteries. The silicon nano-particles have a size of 1-100 nm. The composite particles contain oxygen and silicon in a molar ratio: 009-30-2010
20100219370POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY - The present invention provides a nonaqueous electrolyte battery that exhibits high energy density and excellent cycle characteristics, as well as a cathode for use in such a battery, and a cathode active material for use in such a cathode. The cathode active material of the present invention has a composition represented by the formula (1) and a crystallite size in the (110) plane of not smaller than 85 nm:09-02-2010
20100237277NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND POSITIVE ELECTRODE ACTIVE MATERIAL - A nonaqueous electrolyte battery includes a case, a positive electrode housed in the case and including a positive electrode active material containing a lithium-nickel composite oxide and at least one of lithium hydroxide and lithium oxide, the sum of lithium hydroxide and lithium oxide falling within not less than 0.1% to not more than 0.5% by weight based on the total amount of the positive electrode active material, a negative electrode housed in the case and capable of lithium intercalation-deintercalation, and a separator sandwiched between the positive electrode and the negative electrode and impregnated with a nonaqueous electrolyte containing γ-butyrolactone.09-23-2010
20100237275METHOD FOR PREPARING LITHIUM METAL PHOSPHATE - Disclosed is a method for preparing a lithium metal phosphate represented by the following Formula 1 by using a mixture of a metal (M) with a metal oxide containing the same metal:09-23-2010
20100237276ELECTROCHEMICAL COMPOSITION AND ASSOCIATED TECHNOLOGY - A composition including a first material and a metal or a metal oxide component for use in an electrochemical redox reaction is described. The first material is represented by a general formula M09-23-2010
20100155656PROCESS FOR MAKING FLUORINATED LITHIUM VANADIUM POLYANION POWDERS FOR BATTERIES - Processes produce a lithium vanadium fluorophosphate or a carbon-containing lithium vanadium fluorophosphate. Such processes include forming a solution-suspension of precursors having V06-24-2010
20100243952Spinel Type Lithium Transition Metal Oxide - In order to provide a novel spinel type lithium transition metal oxide (LMO) having excellent power performance characteristics, in which preferably both the power performance characteristics and the cycle performance at high temperature life characteristics may be balanced, a novel spinel type lithium transition metal oxide with excellent power performance characteristics is proposed by defining the inter-atomic distance Li—O to be 1.978 Å to 2.006 Å as measured by the Rietveld method using the fundamental method in a lithium transition metal oxide represented by the general formula Li09-30-2010
20100301267METHODS OF MAKING LITHIUM VANADIUM OXIDE POWDERS AND USES OF THE POWDERS - Methods relate to making lithium vanadium oxide powders. Applications for the lithium vanadium oxide powders include use as a negative electrode or anode material for lithium ion batteries. Liquid phase reactions and reduction in vanadium oxidation state of precursor material facilitate in the making of the lithium vanadium oxide powders. Particles forming the lithium vanadium oxide powders may further contain carbon to provide electrical conductivity.12-02-2010
20110127462ELECTRODE COMPOSITION FOR INKJET PRINT, ELECTRODE PREPARED USING THE ELECTRODE COMPOSITION, AND LITHIUM BATTERY COMPRISING THE ELECTRODE - A negative electrode composition for inkjet print including beta phase TiO06-02-2011
20110127463POSITIVE ELECTRODE MATERIAL, ITS MANUFACTURING METHOD AND LITHIUM SECONDARY BATTERY - The object of the invention is to provide positive electrode material in which a discharge rate characteristic and battery capacity are hardly deteriorated in the environment of low temperature of −30° C., its manufacturing method and a lithium secondary battery using the positive electrode material. The invention is characterized by the positive electrode material in which plural primary particles are flocculated and a secondary particle is formed, and the touch length of the primary particles is equivalent to 10 to 70% of the length of the whole periphery on the section of the touched primary particles.06-02-2011
20110001084ELECTRODE MATERIAL AND LITHIUM ION SECONDARY BATTERY - The electrode material according to the present invention has a crystal phase in the form of a lattice containing lithium vanadium oxide, such as Li01-06-2011
20100224824Anode material for lithium-ion chemical current sources and method of obtaining thereof - Field of use: the electrotechnical industry, in particular, anode materials for lithium-ion ECCs. Essence of the invention: Anode material based on lithium-titanium spinel that contains doping components, chromium and vanadium, in equivalent quantities, of the chemical formula Li09-09-2010
20110017947LITHIUM METAL PHOSPHATES, METHOD FOR PRODUCING THE SAME AND USE THEREOF AS ELECTRODE MATERIAL - The invention describes a process for producing a compound of the formula LiMPO.sub.4, in which M represents at least one metal from the first transition series, comprising the following steps: a) production of a precursor mixture, containing at least one Li.sup.+ source, at least one M.sup.2+ source and at least one PO.sub.4.sup.3− source, in order to form a precipitate and thereby to produce a precursor suspension; b) dispersing or milling treatment of the precursor mixture and/or the precursor suspension until the D90 value of the particles in the precursor suspension is less than 50 .mu.m; and c) the obtaining of LiMPO.sub.4 from the precursor suspension obtained in accordance with b), preferably by reaction under hydrothermal conditions. The material obtainable by this process has particularly advantageous particle size distributions and electrochemical properties when used in electrodes.01-27-2011
20110108760ELECTRODE MATERIAL, PRODUCTION METHOD OF SAME AND LITHIUM ION SECONDARY BATTERY - An electrode material uses, as an active material, sodium vanadium oxide represented by Na05-12-2011
20110042610METHOD FOR PREPARING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed is a method for preparing a cathode active material for a lithium secondary battery, and the preparing method includes: adding a phosphorus compound to a transition metal oxide dispersion liquid to prepare a coating liquid; drying the coating liquid to prepare a powder including phosphorus oxide coated on the surface of the transition metal oxide; and dry-mixing the powder coated with the phosphorus oxide with a lithium intercalation compound, and then firing the mixture to form a solid solution compound of Li-M02-24-2011
20110114875ELECTROCHEMICALLY ACTIVE MATERIALS AND PRECURSORS THERETO - The invention provides unique methods and compositions useful for preparing high-quality, nano-scale powdery precursor materials that are efficiently converted to electrochemically active materials, for example those useful in rechargeable lithium-ion batteries as electrode materials and various applications.05-19-2011
20110114873MATERIAL FOR LITHIUM SECONDARY BATTERY OF HIGH PERFORMANCE - Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of Li05-19-2011
20110114874METHOD OF PREPARING MATERIAL FOR LITHIUM SECONDARY BATTERY OF HIGH PERFORMANCE - Provided is a method for preparing a lithium mixed transition metal oxide, comprising subjecting Li05-19-2011
20100171071LITHIUM IRON PHOSPHATE HAVING OXYGEN VACANCY AND DOPED IN THE POSITION OF FE AND METHOD OF QUICK SOLID PHASE SINTERING FOR THE SAME - The present invention relates to a lithium ion cathode material lithium iron phosphate having oxygen vacancy and doped in the position of Fe and a preparation method of quick micro-wave sintering for the same. The molecular formula of the product in present invention is expressed as LiFe07-08-2010
20090146103Cathode material for Li-ion battery applications - A family of Li-ion battery cathode materials and methods of synthesizing the materials. The cathode material is a defective crystalline lithium transition metal phosphate of a specific chemical form. The material can be synthesized in air, eliminating the need for a furnace having an inert gas atmosphere. Excellent cycling behavior and charge/discharge rate capabilities are observed in batteries utilizing the cathode materials.06-11-2009
20100163791Porous Silicon-Containing Carbon-Based Composite Material, Electrode and Battery Formed Therefrom - The present invention relates to a porous silicon-containing carbon-based composite material produced by carbonizing both (1) a silicon metal or a silicon-containing compound and (2) an organic compound containing no silicon atoms and having a softening point or a melting point, in an inert gas or in a vacuum at a temperature ranging from 300 to 1,500° C. The porous silicon-containing carbon-based composite material of the present invention can be used as an electrode of a battery. Thereby, a battery which has an increased reversible capacity and stable charge and discharge cycle characteristics, and has a reduced loss of potential at the time of discharging lithium can be produced with a simple production process.07-01-2010
20110073803METHOD FOR PREPARING CATHODE ACTIVE MATERIAL - A method for preparing a cathode active material includes mixing a phosphorus source material, a lithium source material, and a dispersing agent together to form a first liquid mixture. An iron powder is added into the first liquid mixture. The first liquid mixture with the iron powder therein is dried to achieve a precursor. The precursor is calcined in a protective gas at a temperature of about 600° C. to about 800° C. for more than about 2 hours.03-31-2011
20090321678Method and apparatus for ultracapacitor electrode with controlled binder content - Particles of active electrode material are made by blending or mixing a mixture of activated carbon, optional conductive carbon, and binder. In selected implementations, binder content in the electrode material is relatively low, typically the binder content of the mixture being between about 3 percent and about 10 percent by weight. The electrode material may be attached to a current collector to obtain an electrode for use in various electrical devices, including a double layer capacitor. The composition of the mixture increases the energy density and the integrity of the electrode.12-31-2009
20110210288Method of Making Active Materials for Use in Secondary Electrochemical Cells - The present invention provides for the preparation of an “optimized” VPO09-01-2011
20110210287PROCESS FOR PRODUCING LITHIUM MANGANATE PARTICLES AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - According to the present invention, there is provided a process for producing lithium manganate particles having a high output and an excellent high-temperature stability. The present invention relates to a process for producing lithium manganate particles comprising the steps of mixing a lithium compound, a manganese compound and a boron compound with each other; and calcining the resulting mixture in a temperature range of 800 to 1050° C., wherein an average particle diameter (D09-01-2011
20110089367PRECURSOR FOR PREPARATION OF LITHIUM TRANSITION METAL OXIDE - Provided is a precursor for the preparation of a lithium transition metal oxide that is used for the preparation of a lithium transition metal oxide as a cathode active material for a lithium secondary battery, through a reaction with a lithium-containing compound, wherein the precursor contains two or more transition metals, and sulfate ion (SO04-21-2011
20120145953LITHIUM PRECURSORS FOR LixMyOz MATERIALS FOR BATTERIES - Disclosed are lithium-containing compounds and methods of utilizing the same. The disclosed compounds may be used to deposit alkali metal-containing layers using vapor deposition methods such as chemical vapor deposition or atomic layer deposition. In certain embodiments, the lithium-containing compounds include a ligand and at least one aliphatic group as substituents selected to have greater degrees of freedom than the usual substituent.06-14-2012
20120241666CATHODE ACTIVE MATERIAL PRECURSOR AND ACTIVE MATERIAL FOR A RECHARGEABLE LITHIUM BATTERY COMPRISING HOLLOW NANOFIBROUS CARBON, AND PRODUCTION METHOD THEREOF - A cathode active material precursor for a rechargeable lithium battery including hollow nanofibrous carbon may be a composite cathode active material precursor for a rechargeable lithium battery including hollow nanofibrous carbon; and a cathode active material precursor joined to the skeleton of the hollow nanofibrous carbon, wherein the cathode active material precursor includes a metal composite of Ma(PO09-27-2012
20120241667BINDER COMPOSITION FOR ELECTRODES AND ELECTRODE MIX SLURRY - A binder composition for electrodes with greater binding strength that does not inhibit the formation of a stable electrode interface (SEI) on the surface of an active substance is provided. The binder composition for electrodes includes at least one type of tetracarboxylic acid ester compound, at least one type of diamine compound, and an organic solvent. Furthermore, the organic solvent preferably has a boiling point that is 250° C. or less. In addition, the organic solvent preferably has a highest occupied molecular orbital (HOMO) that is −10 eV or less.09-27-2012
20100065775NOVEL MARTERIALS INCLUDING ELEMENTS OF GROUP 14 - The invention relates to a method for preparing a material including at least one member of the Group 14 by thermal degradation of a ternary phase, also known as the Zintl phase, or by reaction therewith an oxidising solvent. The invention also relates to the material containing at least one element of Group 14 that can be obtained by this method, and to the use thereof mainly in the field of electrochemistry, particularly for batteries. The material is more particularly suited for the field of batteries of the alkaline metal and/or alkaline-earth ions type, in particular of the lithium-ion type.03-18-2010
20110068293POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The invention provides a polyanion-based positive active material which can improve storage stability (especially, high temperature storage stability), charge and discharge cycle performance and the like of a lithium secondary battery, and a lithium secondary battery using the same. The positive active material for a lithium ion secondary battery contains lithium iron cobalt phosphate represented by the general formula: Li03-24-2011
20110068296Manganese Phosphates and Related Electrode Active Materials - The invention provides electrode active materials comprising lithium or other alkali metals, manganese, a +3 oxidation state metal ion, and optionally other metals, and a phosphate moiety. Such electrode active materials include those of the formula:03-24-2011
20110068297CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES - The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO03-24-2011
20110068298ELECTRODE MATERIAL WITH ENHANCED IONIC TRANSPORT PROPERTIES - Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.03-24-2011
20110068295FERRIC PHOSPHATE AND METHODS OF PREPARATION THEREOF - High-purity crystalline ferric phosphate material with desirable characteristics for use in synthesis of nano-sized LFP cathode material are described. The ferric phosphate dihydrate material has as disclosed herein has a molar ratio of phosphorous to iron is from about 1.001 to about 1.05, a surface area of from about 25 m03-24-2011
20110068294COMPOSITE ELECTRODE MATERIAL - The invention relates to a composite electrode material consisting of a carbon coated complex oxide, fibrous carbon and a binder. Said material is prepared by a method which comprises co-grinding an active electrode material and fibrous carbon, and adding a binder to the co-grinded mixture to lower the viscosity of the mixture. The fibrous carbon is preferably vapor grown carbon fibers.03-24-2011
20090026412Preparation of a hydrogen source for fuel cells - A method for preparing a hydrogen source for a fuel cell by adding an ammonium salt to a slurry of sodium borohydride and a sodium alkoxide in a liquid hydrocarbon.01-29-2009
20100294985POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR LITHIUM SECONDARY BATTERY AND PROCESS FOR PRODUCING THE SAME - A positive electrode active material for a lithium secondary battery containing a lithium-cobalt composite oxide, which has a large volume capacity density, has a high safety and is excellent in charge and discharge cyclic durability, and its production process, are provided.11-25-2010
20100264363ELECTRODE ACTIVE MATERIAL POWDER WITH SIZE DEPENDENT COMPOSITION AND METHOD TO PREPARE THE SAME - The present invention relates to a powderous electrode active material of lithium transition metal oxide Li10-21-2010
20110248212METHODS OF PREPARING CARBONACEOUS MATERIAL - Methods and apparatus relate to methods of making carbonaceous material or coating from a precursor. Oxidation of hydrocarbons forming the precursor occurs upon adding an oxidation agent to a mixture of the precursor and a solvent for the precursor. The oxidation of the hydrocarbons yields constituents that are insoluble in the solvent and may not melt. The constituents that are insoluble in the solvent may further coat solid particles, if the solid particles are provided in the mixture. Carbonization of solids recovered by separation from liquids in the mixture increases carbon weight percent of the constituents that are insoluble in the solvent. The methods result in products that provide the carbonaceous material or coating and are suitable for use in electrodes.10-13-2011
20120199785TRANSITION METAL PHOSPHATE, AND SODIUM SECONDARY BATTERY - The present invention provides a transition metal phosphate and a sodium secondary battery. The transition metal phosphate contains Na, P and M where M represents one or more elements selected from the group consisting of transition metal elements, wherein a value of I/I08-09-2012
20090127503Active Material for Lithium Ion Battery Having A1-Containing Lithium Titanate and Lithium Ion Battery - It is an object of the present invention to provide an active material for lithium ion battery capable of producing a lithium ion battery having an excellent high rate charge and discharge performance and a lithium ion battery having an excellent high rate charge and discharge performance.05-21-2009
20120168675Additive for nickel-zinc battery - A composition that contains nickel oxyhydroxide, nickel metal, ruthenium oxide (Ru02) and a binder is prepared as the cathode for a nickel-zinc battery. Metal oxide or hydroxide with a rare earth oxide may be included in the cathode to improve the electrode capacity and shelf life. Optionally, zinc oxide is added to the cathode to facilitate charger transfer and improve the characteristics of high rate discharging. The cathode significantly increases the charging efficiency, promotes the overpotential of oxygen evolution, and intensifies the depth of discharging, thereby increasing the overall efficiency and lifespan of the battery.07-05-2012
20120199784ELECTRODE MATERIAL WITH ENHANCED IONIC TRANSPORT PROPERTIES - Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.08-09-2012
20110133118CRYSTALLIZED GLASS AND METHOD FOR PRODUCING THE SAME - The crystallized glass according to the present invention contains a LiVOPO06-09-2011
20110133117Method for manufacturing lithium titanate for lithium secondary battery active material - The present invention provides a method for manufacturing lithium titanate for a lithium secondary battery active material in which substantially no titanium dioxide, raw material, is present and which can provide excellent rapid charge and discharge characteristics and high-temperature storage characteristics to a lithium secondary battery when used as a negative electrode active material. The method for manufacturing lithium titanate for a lithium secondary battery active material according to the present invention comprises a first step of preparing a mixture comprising a Li compound, titanium dioxide having a specific surface area of 1.0 to 50.0 m06-09-2011
20100181527NITROXIDE CONTAINING ELECTRODE MATERIALS FOR SECONDARY BATTERIES - This invention relates to a stable secondary battery utilizing as active principle the oxidation and reduction cycle of a sterically hindered nitroxide radical, a sterically hindered oxoammonium cation, a sterically hindered hydroxylamine or a sterically hindered aminoxide anion containing a piperazin-2,6-dione, a piperazin-2-one or morpholin-2-one structural unit. 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 compounds.07-22-2010
20110168945Positive active material and method of preparing the same - Provided are a positive active material and a method of preparing the same. The positive active material includes LiM07-14-2011
20110260099Doped Lithium Transition Metal Oxides Containing Sulfur - The invention covers a powderous lithium transition metal oxide having a layered crystal structure Li10-27-2011
20110260100Novel Metal-Organic Frameworks as Electrode Material for Lithium Ion Accumulators - Described is an electrode material which is suitable for a lithium ion accumulator and comprises a porous metal-organic framework, wherein the framework comprises lithium ions and optionally at least one further metal ion and at least one bidentate organic compound and the at least one bidentate organic compound is based on a dihydroxydicarboxylic acid which can be reversibly oxidized to a quinoid structure. Also described is a porous metalorganic framework, the use thereof and also lithium ion accumulators comprising such electrode materials.10-27-2011
20110133119NICKEL OXIDE-STABILIZED ZIRCONIA COMPOSITE OXIDE, PROCESS FOR PRODUCTION THEREOF, AND ANODE FOR SOLID OXIDE TYPE FUEL CELL COMPRISING THE COMPOSITE OXIDE - The present invention relates to a nickel oxide-stabilized zirconia composite in which nickel oxide is dispersed uniformly, a process for readily producing the composite oxide, and an anode for a solid oxide fuel cell having excellent output characteristics.06-09-2011
20120145952HIGH POLYMER SOLUTION, NEGATIVE ELECTRODE MATERIAL AND NEGATIVE ELECTRODE - A high polymer solution used as a negative electrode material is provided in the present application. The high polymer solution comprises a compound prepared from metal ions and acid ions, high polymer and solvent, and each of them has a concentration of 0.1 mol/L to 10 mol/L. A negative electrode material and a negative electrode both with a material formed by said high polymer solution are also provided.06-14-2012
20110175020NEGATIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND A METHOD FOR PREPARING SAME - Provided are an anode active material for a lithium secondary battery having high reversible capacity and excellent charge/discharge efficiency, comprising a complex composed of ultra-fine Si phase particles and an oxide surrounding the ultra-fine Si phase particles, and a carbon material; and a method for preparing the same. The present invention also provides a method for preparing an anode active material for a lithium secondary battery comprising producing a complex composed of ultra-fine Si particles and an oxide surrounding the ultra-fine Si particles by mixing a silicon oxide and a material having an absolute value of oxide formation enthalpy (ΔH07-21-2011
20110175019METHOD FOR PREPARING CATHODE ACTIVE MATERIAL OF LITHIUM BATTERY - A method for preparing a cathode active material of lithium battery is shown. The method includes providing MnOOH and lithium source material, and mixing the MnOOH and the lithium source material in a liquid solvent to achieve a mixture. Then, the mixture is dried to remove the liquid solvent, thereby achieving a precursor. A temperature of the precursor is elevated from room temperature to a sintering temperature of about 500° C. to about 900° C. at a uniform rate, and the precursor is sintered at the sintering temperature for about 3 hours to about 24 hours.07-21-2011
20100059707Mixed metal hydroxides and their preparation and use - The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.03-11-2010
20090309062LITHIUM COMPOSITE METAL OXIDE - Provided is a lithium composite metal oxide containing Li, Ni and M (wherein, M is Mn and/or Co), characterized by exhibiting Signal B below in a spectrum at a rotational speed of 10 kHz among the solid-state nuclear magnetic resonance spectra of 12-17-2009
20100193731COMPOSITE ANODE ACTIVE MATERIAL, ANODE INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE ANODE, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - A composite anode active material including metal core particles and carbon nanotubes that are covalently bound to the metal core particles, an anode including the composite anode active material, a lithium battery employing the anode, and a method of preparing the composite anode active material.08-05-2010
20100025627REACTION METHOD, METAL OXIDE NANOPARTICLE OR CARBON CARRYING THE NANOPARTICLE, OBTAINED BY THE METHOD, ELECTRODE CONTAINING THE CARBON, AND ELECTROCHEMICAL DEVICE WITH THE ELECTRODE - The present invention aims at: providing an accelerated reaction in a liquid-phase reaction; forming, by way of the reaction, a metal oxide nanoparticle and carbon that carries the metal oxide nanoparticle in a highly dispersed state; and providing an electrode containing the carbon and an electrochemical device using the electrode. In order to solve the above-mentioned problem, shear stress and centrifugal force are applied to the reactant in the rotating reactor so that an accelerated chemical reaction is attained in the course of the reaction. Further, the carbon carrying a metal oxide nanoparticle in a highly dispersed state comprises: a metal oxide nanoparticle produced by the accelerated chemical reaction, wherein shear stress and centrifugal force are applied to a reactant in a rotating reactor in the course of the reaction; and carbon dispersed in the rotating reactor by applying shear stress and centrifugal force. An electrochemical device produced by using the carbon carrying the metal oxide nanoparticle as an electrode has high output and high capacity characteristics.02-04-2010
20100019193METHOD OF MANUFACTURING A FUEL CELL ELECTRODE (AS AMENDED) - Encapsulated electrode catalyst particles 01-28-2010
20100019194POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE AND SECONDARY BATTERY - Provided is a cathode active material for nonaqueous electrolyte rechargeable batteries which allows production of batteries having improved load characteristics with stable quality, and also allows production of batteries having high capacity. Also provided are a cathode for nonaqueous electrolyte rechargeable batteries and a nonaqueous electrolyte rechargeable battery. The cathode active material includes secondary particles each composed of a plurality of primary particles, and/or single crystal grains, and has a specific surface area of not smaller than 20 m01-28-2010
20120145954ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - It is an object of the present invention to provide an active material for a lithium secondary battery having high discharge capacity and excellent in high rate discharge characteristics and a lithium secondary battery using the same. The active material for a lithium secondary battery containing a solid solution of a lithium-transition metal composite oxide having an α-NaFeO06-14-2012
20100181529PROCESS FOR SYNTHESIZING LixFeMZO4 / CARBON AND LixMZO4 / CARBON COMPOSITE MATERIALS - The present invention provides a cost effective process of generating Li07-22-2010
20100181528SOLID SOLUTION LITHIUM ALLOY CERMET ANODES - A metal-ceramic composite (“cermet”) has been produced by a chemical reaction between a lithium compound and another metal. The cermet has advantageous physical properties, high surface area relative to lithium metal or its alloys, and is easily formed into a desired shape. An example is the formation of a lithium-magnesium nitride ceiniet by reaction of lithium nitride with magnesium. The reaction results in magnesium nitride grains coated with a layer of lithium. The nitride is inert when used in a battery. It supports the metal in a high surface area form, while stabilizing the electrode with respect to dendrite formation. By using an excess of magnesium metal in the reaction process, a cermet of magnesium nitride is produced, coated with a lithium-magnesium alloy of any desired composition. This alloy inhibits dendrite formation by causing lithium deposited on its surface to diffuse under a chemical potential into the bulk of the alloy.07-22-2010
20100327223Lithium Iron Phosphate Cathode Materials With Enhanced Energy Density And Power Performance - The invention is related to a cathode material comprising particles having a lithium metal phosphate core and a pyrolytic carbon deposit, said particles having a synthetic multimodal particle size distribution comprising at least one fraction of micron size particles and one fraction of submicron size particles, said lithium metal phosphate having formula LiMPO12-30-2010
20120037844MIXED PHOSPHATE-DIPHOSPHATE ELECTRODE MATERIALS AND METHODS OF MANUFACTURING SAME - This invention relates generally to electrode materials, electrochemical cells employing such materials, and methods of synthesizing such materials. The electrode materials have a crystal structure with a high ratio of Li to metal M, which is found to improve capacity by enabling the transfer of a greater amount of lithium per metal, and which is also found to improve stability by retaining a sufficient amount of lithium after charging. Furthermore, synthesis techniques are presented which result in improved charge and discharge capacities and reduced particle sizes of the electrode materials.02-16-2012
20120305835POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - A positive electrode active material for a lithium secondary battery provided by the present invention is obtained by mixing a nickel-containing lithium-manganese complex oxide having a spinel structure and an aluminum- and/or magnesium-containing lithium-nickel complex oxide having a lamellar structure. The lamellar-structure lithium-nickel complex oxide is a compound represented by general formula LiNi12-06-2012
20120305834Negative Electrode Material for Nonaqueous Electrolyte Secondary Batteries and Manufacturing Method Thereof - The present invention provides a negative electrode material for a nonaqueous electrolyte secondary battery which can improve the cycle properties of a lithium ion secondary battery and a method for manufacturing the negative electrode material. The negative electrode material comprises at least two types of powdery alloy materials A and B in which powdery alloy material A contains Co, Sn, and Fe and does not contain Ti and powdery alloy material B contains Fe, Ti, and Sn, and the proportion of the mass of powdery alloy material B to the sum of the mass of powdery alloy material A and the mass of powdery alloy material B is at least 10 mass % and at most 30 mass %.12-06-2012
20120037846POSITIVE ACTIVE MATERIAL AND LITHIUM BATTERY INCLUDING THE SAME - A positive active material including a lithium composite oxide and a transition metal oxide including a transition metal having an oxidation number smaller than an oxidation number when the transition metal is in the most stable state hinders generation of oxygen occurring during charging and provides a lithium battery with high-temperature preservation characteristics and high stability.02-16-2012
20120037845MIXED CARBON MATERIAL AND NEGATIVE ELECTRODE FOR A NONAQUEOUS SECONDARY BATTERY - A negative electrode material provided by the present invention capable of suppressing a decrease in charge acceptance and high temperature storage properties in an electrode with a high capacity and a high density is a mixed carbon material comprising carbon material A having cores of graphite powder with amorphous carbon and/or turbostratic carbon adhered to or coated on the surface of the cores and carbon material B which is graphite powder, the compressibility which is the density (g/cm02-16-2012
20110031437Positive Electrode Active Material for Lithium Ion Battery, Positive Electrode for Secondary Battery, and Lithium Ion Battery - Provided is a positive electrode active material for a lithium ion battery positive electrode material made of lithium-containing nickel-manganese-cobalt composite oxide of a layered structure represented with LiaNixMnyCozO02-10-2011
20110108759Positive electrode active material for alkaline storage battery, positive electrode for alkaline storage battery, alkaline storage battery, and method for manufacturing positive electrode active material for alkaline storage battery - There are provided a positive electrode active material for an alkaline storage battery, a positive electrode for an alkaline storage battery, and an alkaline storage battery each of which has an excellent output characteristics and also has an excellent self-discharge characteristic and an excellent cycle lifetime characteristic. The positive electrode active material for an alkaline storage battery according to the present invention has nickel hydroxide particles each containing at least magnesium in a solid solution state and a cobalt compound layer coating the surface of each of the nickel hydroxide particles. Among them, the cobalt compound layer contains cobalt having an average valence of not less than 2.6 and not more than 3.0 and also contains sodium at a proportion of less than 0.10 wt % to the total weight of the cobalt compound layer. The positive electrode active material for an alkaline storage battery according to the present invention has a conductivity smaller than 1.0×1005-12-2011
20100264362Method of producing trichlorosilane (TCS) rich Chlorosilane product stably from a fluidized gas phase reactor (FBR) and the structure of the reactor - A fluidized bed reactor (FBR) for producing chlorosilane mixture, which has high contents of tri-chlorosilane (TCS), by hydro chlorination of metallurgical silicon (MGSI) and a method of producing high contents of TCS stably with the FBR is disclosed. A cooling jacket, which surrounds the lower reactor section, combined with inert initial charging material, which does not react with HCl during the reaction at a temperature of above 300° C. and pressure of above 5 bar, controls the extreme exothermal heat of the reaction. In addition to this, combination of an optimized gas distributor and a feeder that can feed the metallurgical silicon with accuracy of ±5% enabled to realize uniform temperature profile within the reaction zone within ±1 degree ° C. deviation at 350° C. of average reaction temperature and at 5 bar of reaction pressure.10-21-2010
20110315919PRODUCTION PROCESS FOR LITHIUM-BORATE-SYSTEM COMPOUND - A process is provided, process which makes it possible to produce lithium-borate-system materials by means of relatively simple means, lithium-borate-system materials which are useful as positive-electrode active materials for lithium-ion secondary battery, and the like, whose cyclic characteristics, capacities, and so forth, are improved, and which have better performance. The present production is characterized in that a divalent metallic compound including at least one member of compounds that is selected from the group consisting of divalent-iron compounds and divalent-manganese compounds, and boric acid as well as lithium hydroxide are reacted at 400-650° C. in a molten salt of a carbonate mixture comprising lithium carbonate and at least one member of alkali-metal carbonates that is selected from the group consisting of potassium carbonate, sodium carbonate, rubidium carbonate and cesium carbonate in a reducing atmosphere.12-29-2011
20120043500Polycrystalline cobalt-nicke-manganese ternary positive material, preparation method thereof and lithium ion secondary battery - A polycrystalline cobalt-nickel-manganese ternary positive material is provided. The polycrystalline cobalt-nickel-manganese ternary positive material comprises more than two basic crystalline structures of Li02-23-2012
20120001119High Energy Density Cathode Materials for Lithium Ion Batteries - Compounds and materials for improved cathodes are provided. A compound of the present invention can be of the general form Li01-05-2012
20120001120Manufacturing Method of Electrode Material - One object is to provide a manufacturing method of an electrode material with which a characteristic of a power storage device can be improved. Another object is to provide a power storage device to which the above-mentioned electrode material is applied, and an application mode thereof. In a manufacturing method of an electrode material comprising a compound represented by a general formula A01-05-2012
20110006255METHOD FOR FABRICATING A MOLTEN PRODUCT BASED ON LANTHANUM AND MANGANESE - The present invention relates to a molten product comprising: the element lanthanum (La), an element (Ln) selected from the group consisting of praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), yttrium (Y), and mixtures thereof, the element cerium (Ce), an element Qa selected from the group consisting of calcium (Ca), strontium (Sr), barium (Ba) and mixtures thereof, the element manganese (Mn), an element Qb selected from the group consisting of magnesium (Mg), nickel (Ni), chromium (Cr), aluminum (Al), iron (Fe), cobalt (Co), titanium (Ti), tin (Sn), tantalum (Ta), indium (In), niobium (Nb) and mixtures thereof, the element oxygen (O).01-13-2011
20090200508Lithium Nickel Manganese Cobalt Composite Oxide and Lithium Rechargeable Battery - This invention provides a lithium nickel manganese cobalt composite oxide having a composition of LiaNixMnyCozO08-13-2009
20120007021PROCESS FOR PRODUCING LITHIUM IRON PHOSPHATE PARTICLES AND METHOD FOR PRODUCING SECONDARY CELL - For production of NASICON type lithium iron phosphate particles, it is desired to increase the uniformity of the particle size and the chemical composition and further to improve the crystallinity.01-12-2012
20120007020METHOD FOR PRODUCING INORGANIC COMPOUNDS - Compounds (I) A01-12-2012
20120012780CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO01-19-2012
20100181526NITRIC ACID BATTERY - This invention discloses the method of producing a nitric acid battery suitable for high or low power applications. These batteries provide significant improvements over existing technology. The battery's cell(s) are comprised of three major components: an anode and a cathode or two electrodes of predetermined size; a primarily nitric acid (HNO07-22-2010
20110049421COMPOSITIONS AND PROCESSES FOR MAKING THE SAME - Compositions and processes of for forming the same are described. In some embodiments, the compositions include lithium-based compounds which may be used as electrode materials in electrochemical cells including batteries.03-03-2011
20110049420Homogeneous Nanoparticle Core Doping of Cathode Material Precursors - This invention describes a heterogeneous metal bearing material, comprising a host material composed of primary particles agglomerated into secondary particles, and a particulate dopant material, characterised in that the particulate dopant material is homogeneously distributed within the secondary particles of said host material. In particular, the dopant material is TiO03-03-2011
20110049419CATHODE ACTIVE MATERIAL, CATHODE INCLUDING THE SAME AND LITHIUM BATTERY INCLUDING CATHODE - A cathode active material, a cathode including the cathode active material, and a lithium battery including the cathode. A lithium manganese phosphate cathode active material having an olivine structure represented by Li03-03-2011
20110049418CATHODE COMPOSITIONS FOR LITHIUM-ION ELECTROCHEMICAL CELLS - Compositions useful for cathodes in lithium-ion batteries are described. In some examples, an electrochemical cell includes an electrode, the electrode comprising a composition including the elements of Li, Fe, and F, where the composition includes a first phase including a disordered trirutile structure. Cathodes including such a composition may exhibit reversible reactivity with lithium. In some examples, this reaction takes place via an intercalation mechanism.03-03-2011
20120061612Electrode Active Material for Secondary Battery and Method for Producing the Same, Precursor for Same, and Secondary Battery - A method for producing an electrode active material for a secondary battery, which contains a lithium containing phosphate compound with a olivine-type framework represented by LiMPO03-15-2012
20110073804Titanic Acid Compound, Process For Producing The Titanic Acid Compound, Electrode Active Material Containing The Titanic Acid Compound, And Storage Device Using The Electrode Active Material - This invention provides a titanic acid compound-type electrode active material having a high battery capacity and, at the same time, having excellent cycle characteristics. The titanic acid compound exhibits an X-ray diffraction pattern corresponding to a bronze-type titanium dioxide except for a peak for a (200) plane and having a peak intensity ratio between the (001) plane and the (200) plane, i.e., I03-31-2011
20120153220Si ALLOY NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DEVICE06-21-2012
20120153219POLYSILOXANE BINDER FOR LITHIUM ION BATTERY ELECTRODES - An electrode includes a binder and an electroactive material, wherein the binder includes a polymer including a linear polysiloxane or a cyclic polysiloxane. The polymer may be generally represented by Formula I:06-21-2012
20120119138NEGATIVE ELECTRODE ACTIVE MATERIAL OF LITHIUM SECONDARY BATTERY, SECONDARY BATTERY USING THE SAME, METHOD FOR MANUFACTURING THE SAME - A negative electrode active material of lithium secondary battery includes: at least one of a petroleum-derived green coke and a coal-derived green coke, and at least one of a petroleum-derived calcined coke and a coal-derived calcined coke within a mass ratio range of 90:10 to 10:90, and a phosphorous compound within a range of 0.1 to 6.0 parts by mass in amount equivalent to phosphor relative to 100 parts by mass of the at least one of the green cokes and the at least one of the calcined cokes.05-17-2012
20110089369POSITIVE ELECTRODE MATERIAL FORMED BY A LAMELLAR-TYPE OXIDE FOR A LITHIUM BATTERY - A lamellar-type oxide, in particular used as active material of a positive electrode for a lithium battery and to a method for synthesizing such an oxide. The oxides are used as active materials for the positive electrode of a lithium battery. With such oxides, the specific capacity of a lithium battery is improved and stabilized on cycling.04-21-2011
20110089368Composite Positive Active Material of Lithium Battery and Method for Manufacturing the Same - The composite positive active material of a lithium battery is composed of a main active material containing lithium and a sheathing active material containing lithium, whose particle diameter is far smaller than that of the main active material. A pulp containing these two active materials is sprayed and dried to form a mixed powder. The composite positive active material is obtained by means of sintering the mixed powder.04-21-2011
20120161069POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND USE THEREOF - A positive electrode active material provided in the present invention is characterized in that it is substantially formed of a lithium nickel cobalt manganese composite oxide and that a molar content ratio (Ni06-28-2012
20100288970NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, MAKING METHOD AND LITHIUM ION SECONDARY BATTERY - A negative electrode material for nonaqueous electrolyte secondary batteries comprises composite particles which are prepared by coating surfaces of particles having silicon nano-particles dispersed in silicon oxide with a carbon coating, and etching the coated particles in an acidic atmosphere. The silicon nano-particles have a size of 1-100 nm. The composite particles contain oxygen and silicon in a molar ratio: O11-18-2010
20100207059LITHIUM MANGANATE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D08-19-2010
20120132850HYDROGEN STORAGE MATERIALS - The invention provides a hydrogen storage material consisting essentially of a hydride of lithium and magnesium, the material having the general formula: Li05-31-2012
20120132849ELECTROACTIVE PARTICLES, AND ELECTRODES AND BATTERIES COMPRISING THE SAME - Provided herein is a coated electroactive particle, comprising i) an electroactive agglomerated particle that comprises a first and second electroactive materials; and ii) a polymeric overcoating on the surface of the electroactive agglomerated particle. Also provided herein is a coated electroactive particle, comprising i) an agglomerated particle that comprises subparticles of a first electroactive material and subparticles of a second electroactive material; and ii) a polymeric overcoating on the surface of the electroactive agglomerated particle.05-31-2012
20110180749BATTERY COMPONENT AND BATTERY - Disclosed is a lithium ion battery that can easily be manufactured and comprises a negative-electrode active material formed of a burned product of any of soybean hulls, rapeseed meal, cotton hulls, sesame, and cotton seeds.07-28-2011
20110180748POWDERED NIAM1 BM2C(O)X(OH)YCOMPOUNDS, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF IN BATTERIES - The invention is directed to a pulverulent compound of the formula Ni07-28-2011
20120211695NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY - Provided is a negative electrode active material for a lithium-ion secondary battery, comprising SiO08-23-2012
20100051858NON-AQUEOUS ELECTROLYTE SECONDARY CELL NEGATIVE ELECTRODE MATERIAL AND METALLIC SILICON POWDER THEREFOR - A metallic silicon powder is prepared by effecting chemical reduction on silica stone, metallurgical refinement, and metallurgical and/or chemical purification to reduce the content of impurities. The powder is best suited as a negative electrode material for non-aqueous electrolyte secondary cells, affording better cycle performance.03-04-2010
20100051857NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY - A storage battery or a secondary battery is capable of improving the utilization of an active material and obtaining a high energy density, using raw materials having costs substantially equal to those of a conventional lead storage battery especially as a negative-electrode plate of the secondary battery. The negative-electrode active material for the secondary battery is a kneaded mixture including: a raw active material having a metal and an oxide of the metal; and carbon in such an amount that the total absorption number thereof is at least 4.7 ml per mol of the raw active material, in which the kneaded mixture contains no sulfates or sulfates in an amount of 7×1003-04-2010
20100051856POROUS ANODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME, ANODE COMPRISING THE SAME, AND LITHIUM BATTERY COMPRISING THE ANODE - A porous anode active material including a Group 14 element oxide and a non-active material having no reactivity with lithium; a method of manufacturing the porous anode active material; an anode including the porous anode active material; and a lithium battery including the anode. The non-active material may be silica.03-04-2010
20120175551Si ALLOY NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DEVICE07-12-2012
20120175552POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND LITHIUM SECONDARY BATTERY - There is provided a positive electrode active material for lithium secondary batteries which suppresses gelation when kneaded with a binder resin in producing a positive electrode material and provides excellent coating properties. The positive electrode active material for lithium secondary batteries comprises a lithium composite oxide represented by the following general formula (1) and a Ca atom contained in the lithium composite oxide. When the positive electrode active material is analyzed by X-ray diffraction using Cu—Kα radiation as a radiation source, the intensity ratio (b/a) of (b) the diffraction peak at 2θ=18.7±0.2° to (a) the diffraction peak at 2θ=37.4±0.2° derived from CaO is from 10 to 150. Li07-12-2012
20100270498LITHIUM MANGANESE COMPOUNDS AND METHODS OF MAKING THE SAME - Electrode materials such as Li10-28-2010
20100270497ACTIVE MATERIAL COMPOSITION FOR THE NEGATIVE ELECTRODE OF A LITHIUM-ION ACCUMULATOR - An alloy comprising tin, silicon and carbon, and containing a crystalline M-Sn phase, M being an inert metal.10-28-2010
20100270496BURNED COMPOSITE METAL OXIDE AND PROCESS FOR PRODUCING THE SAME - The burned composite metal oxide of the present invention is a burned composite metal oxide which is porous and particulate and which is obtained by subjecting a slurry comprising at least one metal oxide (a), at least one metal compound (b) and a solvent to spray granulation to obtain granules, and burning the granules, the metal oxide (a) selected from the group consisting of a transition metal oxide and an oxide of a metal belonging to 3B, 4B and 5B of a periodic table, the metal compound (b) selected from the group consisting of an alkali metal compound and an alkali earth metal compound, wherein the metal oxide (a) and the metal compound (b) are sparingly soluble in the solvent; the burning is conducted after a heat-maintaining step of heating the granules obtained by the spray granulation at a temperature in a range of ±200° C. based on the decomposition temperature of the metal compound (b); and the metal compound (b) contains at least a nonmetallic element component desorbed in the heat-maintaining step.10-28-2010
20120074351Positive Electrode Materials Combining High Safety and High Power in a Li Rechargeable Battery - The invention relates to a Li03-29-2012
20120228544POSITIVE ELECTRODE MATERIAL FOR ELECTRICAL DEVICE, AND ELECTRICAL DEVICE PRODUCED USING SAME - [Problems to be Solved] Provided is a positive electrode material for an electrical device, which has high capacity and improved initial charge-discharge efficiency.09-13-2012
20110121226Method for manufacturing lithium titanate for lithium secondary battery active material - The present invention provides a method for manufacturing lithium titanate for a lithium secondary battery active material that can provide excellent rapid charge and discharge characteristics to a lithium secondary battery when used as a negative electrode active material, by which method lithium titanate that is a single phase by X-rays can be obtained. The method for manufacturing lithium titanate for a lithium secondary battery active material according to the present invention comprises a first step of preparing a mixture comprising a lithium compound, and anatase type titanium dioxide obtained by a sulfuric acid method and having a specific surface area of 10.0 to 50.0 m05-26-2011
20110121225HYBRID TWO- AND THREE-COMPONENT HOST-GUEST NANOCOMPOSITES AND METHOD FOR MANUFACTURING THE SAME - A hybrid organic-inorganic nanocomposite useful as a cathode in high discharge capacity lithium batteries is provided. The nanocomposite includes macromolecules that are located inside interlayer galleries of V05-26-2011
20100327222Synthesis of Crystalline Nanometric LiFeMPO4 - The present invention relates to lithium secondary batteries and more specifically to positive electrode materials operating at potentials greater than 2.8 V vs. Li12-30-2010
20100327221LITHIUM MANGANATE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to lithium manganate particles having a primary particle diameter of 1 to 8 μm and forming substantially single-phase particles, which have a composition represented by the following chemical formula:12-30-2010
20100327220METHODS FOR MANUFACTURING SPINEL-TYPE LITHIUM MANGANESE AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - A manufacturing method of the present invention includes (a) a material preparation step of preparing a material containing lithium, manganese, and bismuth, and (b) a firing step of firing the material prepared by the material preparation step at a temperature of 830° C. to 1,000° C. In the material preparation step, the material is prepared such that the residual amount of bismuth in spinel-type lithium manganate yielded by the firing step is 0.01 mol % or less with respect to manganese.12-30-2010
20110037018CATHODE MATERIALS AND METHODS FOR PRODUCTION - Embodiments of the present invention relate to a method for producing materials having the formula Li[Ni02-17-2011
20110037019METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERIES, CATHODE ACTIVE MATERIAL FOR LITHIUM ION BATTERIES OBTAINED BY THE PRODUCTION METHOD, LITHIUM ION BATTERY ELECTRODE, AND LITHIUM ION BATTERY - A method for producing a cathode active material for lithium ion batteries includes a step of synthesizing LiFePO02-17-2011
20120319035PRODUCING OXIDIC COMPOUNDS - A process for producing oxidic compounds of the general formula (I) LizMxOy (I) wherein M is one or more elements from groups 2 to 12 of the periodic table, more particularly selected from Co, Mn, Ni, Fe, Al, Mg, x is 1 to 2, y is 2 to 4, and z is 0.5 to 1.5, comprises heating mixtures selected from oxides, hydroxides, carbonates and nitrates of Li and of M together to temperatures in the range from 600 to 1200° C. in a reaction vessel performing incomplete rotary motions about one axis.12-20-2012
20110226987ANODE FOR ELECTROCHEMICAL SYSTEM - The present invention provides an anode including a host material capable of absorbing or desorbing lithium in an electrochemical system. A stabilized lithium metal powder coated with a wax is dispersed in the host material.09-22-2011
20120319036Positive Electrode Active Material For Lithium Ion Battery, Positive Electrode For Lithium Ion Battery, And Lithium Ion Battery - The present invention provides a positive electrode active material for a lithium ion battery with excellent battery characteristics can be provided. The positive electrode active material for a lithium ion battery is represented by the following composition formula:12-20-2012
20120319034LITHIUM SECONDARY BATTERY ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY USING THE SAME - A lithium secondary battery active material in which lithium titanate that can supply excellent rapid charge and discharge characteristics to a lithium secondary battery when used as a negative electrode active material of the lithium secondary battery is used, and a lithium secondary battery that is manufactured using the lithium secondary battery active material and is excellent in terms of, particularly, rapid charge and discharge characteristics. The lithium secondary battery active material of the invention is composed of lithium titanate which has a spinel structure, has a content of sulfate radicals of 100 ppm to 2500 ppm in terms of sulfur atoms and a content of chlorine of 1500 ppm or less, and is expressed by a general formula Li12-20-2012
20120080642Process For Preparing Alloy Composite Negative Electrode Material for Lithium Ion Batteries - The present invention relates to a process for preparing an alloy composite negative electrode material having a spherical carbon matrix structure for lithium ion batteries by spray-drying carbothermal reduction. The invention covers a process for preparing a negative electrode material for a lithium ion battery with a general formula A-M/Carbon, wherein A is a metal selected from the group consisting of Si, Sn, Sb, Ge and Al; and wherein M is different from A and is at least one element selected from the group consisting of B, Cr, Nb, Cu, Zr, Ag, Ni, Zn, Fe, Co, Mn, Sb, Zn, Ca, Mg, V, Ti, In, Al, Ge; and comprising the steps of: —providing a solution comprising an organic polymer and either chemically reducible nanometric A- and M-precursor compounds, or nanometric Si and a chemically reducible M-precursor compound, when said metal A is Si; —spray-drying said solution whereby a A- and M-precursor bearing polymer powder is obtained, and—calcining said powder in a neutral atmosphere at a temperature between 500 and 1000° C. for 3 to 10 hours whereby, in this carbothermal reduction, a carbon matrix is obtained bearing homogeneously distributed A-M alloy particles.04-05-2012
20120319040Positive Electrode Active Substance For Lithium Ion Batteries, Positive Electrode For Lithium Ion Batteries, And Lithium Ion Battery - The present invention provides a positive electrode active material for lithium ion battery which has a high capacity and good rate characteristics can be provided. The positive electrode active material for lithium ion battery has a layer structure represented by the compositional formula: Li12-20-2012
20110240913POSITIVE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM BATTERY INCLUDING POSITIVE ACTIVE MATERIAL - A positive active material includes first and second lithium nickel complex oxides. A positive electrode and lithium battery include the positive active material. The positive active material, and the lithium battery including the positive active material have increased filling density, are thermally stable, and have improved capacity.10-06-2011
20100230632HIGH ENERGY BATTERY MATERIALS - This invention relates to a high energy density cathode material for batteries.09-16-2010
20120319037Method For Producing Positive Electrode Active Material For Lithium Ion Battery And Positive Electrode Active Material For Lithium Ion Battery - The present invention provides a method for producing a positive electrode active material for lithium ion battery, having excellent tap density, at excellent production efficiency, and a positive electrode active material for lithium ion battery. The method for producing a positive electrode active material for lithium ion battery including a step of conducting a main firing after increasing mass percent of all metals in lithium-containing carbonate by 1% to 105% compared to the mass percent of all metals before a preliminary firing, by conducting the step of a preliminary firing to the lithium-containing carbonate, which is a precursor for positive electrode active material for lithium ion battery, with a rotary kiln.12-20-2012
20120319039Positive Electrode Active Material For Lithium Ion Battery, Positive Electrode For Lithium Ion Battery, And Lithium Ion Battery - The present invention provides a positive electrode active material for lithium ion battery which attains a lithium ion battery having high safety. The positive electrode active material has a layer structure for a lithium ion battery, in which the positive electrode active material is represented by the following composition formula:12-20-2012
20120319038NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY - A negative electrode active material for nonaqueous secondary batteries containing a silicon solid solution. The silicon solid solution has one or more than one of a group 3 semimetal or metal element, a group 4 semimetal or metal element except silicon, and a group 5 nonmetal or semimetal element incorporated in silicon. The solid solution shows an XRD pattern in which the position of the XRD peak of the solid solution corresponding to the XRD peak position assigned to the (422) plane of silicon shifts to the smaller or greater angle side relative to the position of the XRD peak assigned to the (422) plane of silicon peak by 0.1° to 1°. The solid solution has a lattice strain of 0.01% to 1% as determined by XRD.12-20-2012
20120280173PRODUCTION METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - The production method for a positive electrode active material according to the present invention is a method of producing a positive electrode active material for a lithium secondary battery mainly composed of an olivine-type lithium manganese phosphate compound, wherein the olivine-type lithium manganese phosphate compound is a compound represented by the general formula Li(Mn11-08-2012
20120280171PRODUCTION OF BATTERY GRADE MATERIALS VIA AN OXALATE METHOD - An active electrode material for electrochemical devices such as lithium ion batteries includes a lithium transition metal oxide which is free of sodium and sulfur contaminants. The lithium transition metal oxide is prepared by calcining a mixture of a lithium precursor and a transition metal oxalate. Electrochemical devices use such active electrodes.11-08-2012
20120280172METHOD FOR PRODUCING POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR PRODUCING NON-AQUEOUS ELECTROLYTE SECONDARY CELL - A method for producing a non-aqueous electrolyte secondary cell by preparing a positive electrode by applying a positive electrode mixture onto a positive electrode core material, the mixture containing a positive electrode active material mainly made of a lithium nickel composite oxide and a binding agent containing polyvinylidene fluoride; measuring the amount of carbon dioxide gas generated when a layer of the positive electrode mixture is removed out of the positive electrode and the layer is heated to 200° C. or higher and 400° C. or lower in an inactive gas atmosphere; selecting a positive electrode satisfying the following formulas:11-08-2012
20120326079COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY INCLUDING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE CATHODE ACTIVE MATERIAL - A composite cathode active material, a cathode and a lithium battery including the composite cathode, and a method of preparing the composite cathode active material, the composite cathode active material including a compound with an olivine crystal structure; and an inorganic material, the inorganic material including a nitride or carbide of at least one element selected from the group of Group 2, Group 13, Group 14, and Group 15 of the periodic table of elements.12-27-2012
20120091391METHOD FOR PROCESSING BATTERY MEMBER - It is a major object of the invention to provide a method for processing a battery member, by which a cathode active material and a sulfide solid electrolyte material can be efficiently separated from each other and the cathode active material and Li contained in the sulfide solid electrolyte material can be efficiently recovered. To achieve the object, the present invention provides a method for processing a battery member containing at least a Li-containing cathode active material and a Li-containing sulfide solid electrolyte material, comprising the steps of: bringing the battery member into contact with a process solution to generate hydrogen sulfide as well as to dissolve the Li contained in the sulfide solid electrolyte material in the process solution; recovering the cathode active material as an insoluble component from the process solution containing the Li dissolved therein; and recovering a Li compound from the process solution, from which the cathode active material as an insoluble component is recovered.04-19-2012
20120326080Positive Electrode Active Substance For Lithium Ion Batteries, Positive Electrode For Lithium Ion Batteries, And Lithium Ion Battery - The present invention provides a positive electrode active material for lithium ion battery which has a high capacity and good rate characteristics can be provided. The positive electrode active material for lithium ion battery has a layer structure represented by the compositional formula: Li12-27-2012
20120326078METHOD OF PREPARING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERIES USING THE SAME - Disclosed is a method for preparing a cathode active material represented by Li12-27-2012
20120326077Process for Synthesis of a Layered Oxide Cathode Composition - A method for preparing a layered oxide cathode using a two step calcination procedure, wherein the first step includes pre-calcination utilizing a rotary calciner.12-27-2012
20090272939CORE-SHELL SPINEL CATHODE ACTIVE MATERIALS FOR LITHIUM SECONDARY BATTERIES, LITHIUM SECONDARY BATTERIES USING THE SAME AND METHOD FOR PREPARING THEREOF - Disclosed herein is a core-shell spinel cathode active material for lithium secondary batteries. The core portion of the active material is made of a spinel manganese-containing material substituted with fluorine or sulfur, having 4V-grade potential and showing low-cost and high-output characteristics, and the shell portion, which comes into contact with an electrolyte, is made of a spinel transition metal-containing material, having excellent thermal stability and cycle life characteristics and showing low reactivity with the electrolyte. Thus, the cathode active material shows significantly improved cycle life characteristics and excellent thermal stability.11-05-2009
20130009091COMPOSITE, METHOD OF MANUFACTURING THE COMPOSITE, ANODE ACTIVE MATERIAL INCLUDING THE COMPOSITE, ANODE INCLUDING THE ANODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING THE ANODE - Provided are a composite including a lithium titanium oxide and a bismuth titanium oxide, a method of manufacturing the composite, an anode active material including the composite, an anode including the anode active material, and a lithium secondary battery having improved cell performance by including the anode.01-10-2013
20130015396LITHIUM SECONDARY BATTERY AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR THE LITHIUM SECONDARY BATTERYAANM Terashima; JunpeiAACI Susono-shiAACO JPAAGP Terashima; Junpei Susono-shi JP - The present invention provides a lithium secondary battery having a positive electrode provided with a positive electrode active material formed of a lithium-manganese complex oxide represented by the general formula01-17-2013
20080237536PRODUCTION METHOD OF ACTIVE MATERIAL, AND ACTIVE MATERIAL - A production method of an active material, and the active material are provided to realize an active material containing metal-containing particles and being capable of achieving satisfactory cycle performance and rate performance. The active material is produced by a method of polymerizing a mixture of a metal ion, a hydroxy acid, and a polyol to obtain a polymer, and a step of carbonizing the polymer. The active material used is one having a carbonaceous porous material, and metal particles and/or metal oxide particles supported in pores of the carbonaceous porous material, and particle diameter of the metal-containing particles are in the range of 10 to 300 nm.10-02-2008
20090200509ACTIVE MATERIAL, ELECTRODE, AND METHODS OF MANUFACTURE THEREOF - An active material having a good cycle performance is produced by bringing a metal-fluoro complex-containing aqueous solution into contact with particles of a first metal oxide so as to form, on surfaces of the first metal oxide particles, particles of a second metal oxide that is an oxide of the metal in the metal-fluoro complex. The active material is composed of particles of the first metal oxide and particles of the second metal oxide which coat the first metal oxide particles and have an average diameter of 50 nm or less. The second metal oxide particles have an adhesive force to the first metal oxide particles of at least 0.1 μN.08-13-2009
20130168601POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, AND SECONDARY BATTERY USING THE SAME - There is provided a novel positive electrode active material for a secondary battery. A positive electrode active material for a secondary battery according to the present exemplary embodiment is represented by the following formula (I):07-04-2013
20130168599PRECURSOR, PROCESS FOR PRODUCTION OF PRECURSOR, PROCESS FOR PRODUCTION OF ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY - Active material is obtained by sintering a precursor, has a layered structure and is represented by the following formula (1). The temperature at which the precursor becomes a layered structure compound in its sintering in atmospheric air is 450° C. or less. Alternatively, the endothermic peak temperature of the precursor when its temperature is increased from 300° C. to 800° C. in its differential thermal analysis in the atmospheric air is 550° C. or less.07-04-2013
20130168600Mixed Metal Oxidized Hydroxide and Method for Production - Disclosed are mixed metal oxidized hydroxide precursors that can be used for the preparation of lithium mixed metal oxide cathode materials for secondary lithium ion batteries and methods of making such mixed metal precursors. The precursors typically are particles of nickel, cobalt, and manganese mixed metal oxidized hydroxides with varying metal molar ratios prepared in co-precipitation reactions in two sequential reactors.07-04-2013
20130140487CATHODE MATERIAL USABLE FOR BATTERIES AND METHOD OF MAKING SAME - A method for preparing a cathode material. In one aspect, the method includes: (1) providing a mixture of at least one iron-containing compound, at least one lithium-containing compound, at least one phosphorus-comprising compound, and at least one oxygen-containing compound, and (2) sintering the mixture, in which the decomposition temperature of the iron-containing compound and the lithium-containing compound is lower than that of the phosphorus-comprising compound and/or the oxygen-containing compound. The cathode material thus prepared, for example, a LiFePO06-06-2013
20130140488ANODE ACTIVE MATERIAL FOR USE IN LITHIUM SECONDARY BATTERY - An anode active material for use in a lithium secondary battery including a mixture of graphite I that has, according to X-ray powder diffraction, d06-06-2013
20130175469Aluminum Dry-Coated and Heat Treated Cathode Material Precursors - Aluminum dry-coated and heat treated cathode material precursors. A particulate precursor compound for manufacturing an aluminum coated lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-oxide core and a non-amorphous aluminum oxide coating layer covering the core. By providing a heat treatment process for mixed metal precursors that may be combined with an aluminum thy-coating process, novel aluminum containing precursors that may be used to form high quality nickel based cathode materials are obtained. The aluminum dry-coated and heat treated precursors include particles have, compared to prior art precursors, relatively low impurity levels of carbonate and/or sulfide, and can be produced at lower cost.07-11-2013
20090289219ANODE ACTIVE MATERIAL WITH IMPROVED ELECTROCHEMICAL PROPERTIES AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME - Disclosed is an anode active material, comprising: (a) a carbonaceous material; and (b) a carbide coating layer partially or totally formed on a surface of the carbonaceous material, the carbide coating layer comprising at least one element selected from the group consisting of metals and metalloids. An anode obtained by using the anode active material and an electrochemical device comprising the anode are also disclosed. The carbonaceous material comprises a coating layer of metal-/metalloid-carbide obtained by treating it at high temperature under inert atmosphere, wherein the coating layer has increased interfacial boding force to the carbonaceous material and thus shows minimized reactivity to lithium. The carbonaceous material as anode active material can minimize the irreversible anode capacity needed for the formation of an SEI film during the first charge/discharge cycle, thereby providing high capacity, high efficiency and significantly improved anode qualities.11-26-2009
20130134349Positive Electrode Active Material for Lithium-Ion Battery and Lithium-Ion Battery - Provided is a lithium ion battery wherein the content of an iron element contained in a positive electrode active material (measured with an ICP emission spectrophotometer) is 10 ppm or more, and magnetic materials having a size of 0.70 times or greater than the thickness of a separator layer are substantially not included in order to provide a lithium ion battery which has small voltage drop during a charge state or under storage at high temperatures.05-30-2013
20100276631POSITIVE ELECTRODE MATERIAL OF NONAQUEOUS LITHIUM-BASED ELECTRICITY STORAGE DEVICE - A positive electrode material of an electricity storage device maintaining a high capacity at a high output density is provided.11-04-2010
20130181160STABILIZED, PURE LITHIUM METAL POWDER AND METHOD FOR PRODUCING THE SAME - The invention relates to a stabilized lithium metal powder and to a method for producing the same, the stabilized, pure lithium metal powder having been passivated in an organic inert solvent under dispersal conditions with fatty acids or fatty acid esters according to the general formula (I) R—COOR′, in which R stands for C07-18-2013
20130146808ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY06-13-2013
20130146809CONTINUOUS MANUFACTURING METHOD FOR ELECTRODE MATERIAL - The present invention relates to a process for continuously manufacturing a lithium secondary battery electrode material comprising: dispersing a transition metal compound in a solution of a lithium compound in an aqueous medium to give a mixture; and charging the mixture in a rotatory cylinder and drying and calcining the mixture, wherein the mixture is stirred by an impeller mounted in the interior of the rotatory cylinder.06-13-2013
20130146806POROUS LITHIUM PHOSPHATE METAL SALT AND METHOD FOR PREPARING THE SAME - The present invention relates to a porous lithium phosphate metal salt and method for preparing the same. The method includes the following steps, which comprises: (A) providing starting materials including a phosphate-containing precursor, a lithium-containing precursor, a metal source, and a carbon source; (B) grinding the starting materials at room temperature to obtain a mixture; (C) spray-granulating the mixture to form a granular mixture; and (D) sintering the granular mixture to obtain a porous lithium phosphate metal salt, wherein the spray granulation process in the step (C) uses a spray granulation device having a plurality of spray nozzles.06-13-2013
20130146807ELECTRODE ACTIVE MATERIAL AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY HAVING THE SAME - An electrode active material that contains a lithium-nickel-manganese-cobalt composite oxide having a hexagonal, layered rock-salt type crystal structure that belongs to the space group R3m. The lithium-nickel-manganese-cobalt composite oxide is represented by the general formula Li06-13-2013
20130175470Cathode Active Material For Lithium Ion Battery And Method For Producing The Same - An object of the present invention is to reduce the time required for the calcination of a lithium metal salt complex to thereby provide a high-quality cathode active material for a lithium ion battery at low cost. The method for producing a cathode active material for a lithium ion battery comprises the steps of:07-11-2013
20100288969LITHIUM MANGANATE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to lithium manganate particles having a primary particle diameter of not less than 1 μm and an average particle diameter (D11-18-2010
20120256123POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - The present invention relates to a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. More particularly, the present invention relates to a positive active material for a rechargeable lithium battery including a compound that can reversibly intercalate/deintercalate lithium and a lithium metal phosphate produced through binding with lithium of the compoound, the lithium metal phosphate existing from the surface of the compound to a predetermined depth, a method of preparing the positive active material, and a rechargeable lithium battery having the positive active material. The positive active material can accomplish excellent cycle-life characteristic and also, suppress battery swelling at a high temperature.10-11-2012
20120273717LiMPO4-based compositions of matter for cathodes for high-performance Li batteries11-01-2012
20120273716LITHIUM-ION BATTERY MATERIALS WITH IMPROVED PROPERTIES - A cobalt-containing phosphate material can comprise lithium (Li) (or, alternatively or additionally other alkali metal(s)), cobalt (Co), phosphate (PO11-01-2012
20100314577CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES - The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO12-16-2010
20110253928METHOD OF PRODUCING ANODE MATERIAL - There are provided a method of producing an anode material for a non-aqueous electrolyte secondary battery which is suitable for use in a high input/output current-type non-aqueous electrolyte secondary battery exemplified by a non-aqueous electrolyte secondary battery for a hybrid electric vehicle (HEV), has reduced irreversible capacity and superior charge-discharge efficiency, and an anode material obtained by the above production method.10-20-2011
20130153821SYNTHETIC PROCESS FOR PREPARATION OF HIGH SURFACE AREA ELECTROACTIVE COMPOUNDS FOR BATTERY APPLICATIONS - A process is disclosed for the preparation of electroactive cathode compounds useful in lithium-ion batteries, comprising exothermic mixing of low-cost precursors and calcination under appropriate conditions. The exothermic step may be a spontaneous flameless combustion reaction. The disclosed process can be used to prepare any lithium metal phosphate or lithium mixed metal phosphate as a high surface area single phase compound.06-20-2013
20110309293BINDER COMPOSITION FOR ELECTRODES AND ELECTRODE MIX SLURRY - A binder composition for electrodes relating to the present invention includes an ester compound derived from at least one type of tetracarboxylic acid, at least one type of compound having 3 or more amino groups, and an organic solvent. Furthermore, this binder composition for electrodes preferably contains at least one type of diamino compound. In addition, it is preferable to use a solvent with a boiling point ≦250° C. in this binder composition for electrodes.12-22-2011
20110309292NEGATIVE ELECTRODE MATERIAL AND METHOD OF MANUFACTURE THEREOF - A silicate negative electrode material comprising a smectite wherein, when the smectite is measured with a powder x-ray diffractometer, a peak is found in a case where 2θ is in a range from 7.45° to 9.18°.12-22-2011
20110309291METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY - The method for producing a cathode active material for a lithium secondary battery is characterized by including (1) a forming step of forming a sheet-form compact containing, as raw substances, a lithium compound serving as a first ingredient, a compound of a transition metal other than lithium serving as a second ingredient, and at least one of boron oxide and vanadium oxide serving as a third ingredient; and (2) a firing step of firing the compact at 700 to 1,300° C.12-22-2011
20110309290STOICHIOMETRIC LITHIUM COBALT OXIDE AND METHOD FOR PREPARATION OF THE SAME - The present invention provides a LiCoO12-22-2011
20130187083MANGANESE OXIDE AND METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING LITHIUM MANGANESE COMPOSITE OXIDE USING SAME - There is provided manganese oxide having a pore volume fraction of no greater than 20% for pores with diameters of 10 μm or greater, as measured by mercury porosimetry, and a tap density of 1.6 g/cm07-25-2013
20130187082LITHIUM SECONDARY BATTERY CONTAINING CATHODE MATERIALS HAVING HIGH ENERGY DENSITY AND ORGANIC/INORGANIC COMPOSITE POROUS MEMBRANE - Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume between the inorganic particles.07-25-2013
20120018670NICKEL HYDROXIDE ELECTRODE FOR RECHARGEABLE BATTERIES - The nickel hydroxide particles for a nickel hydroxide electrode may be treated using an alkaline solution of a strong oxidizing agent such as sodium or potassium persulfate to modify the surface nickel hydroxide structure. The resulting modified surface structure has been found to impart various benefits to electrodes formed from the nickel hydroxide. It is believed that the oxidation of cobalt compounds at the surface of the nickel hydroxide particles results in a highly conductive cobalt compound that plays an important role in the high reliability, high stability and high capacity utilization of nickel electrodes as described herein.01-26-2012
20120018669PASTED NICKEL HYDROXIDE ELECTRODE FOR RECHARGEABLE NICKEL-ZINC BATTERIES - Active material for a positive electrode of a rechargeable alkaline electrochemical cell is made with nickel hydroxide particles or cobalt-coated nickel hydroxide particles treated with strongly oxidizing reagents such as alkali metal persulfate in alkaline solution. The active material also may be made with cobalt-coated nickel hydroxide particles having a high percentage of cobalt(III) on a surface or an average cobalt oxidation state of about 3 measured across the particles. The treated nickel hydroxide or cobalt-coated nickel hydroxide decreases the cobalt solubility in the alkaline electrolyte and increases the high-rate charge and discharge capability. The lower cobalt solubility decreases cobalt migration that can increase self discharge and lead to premature failure.01-26-2012
20130193371METHOD OF MANUFACTURING SECONDARY BATTERY - A method of manufacturing a secondary battery, using an electrode plate having an electrode mixture layer formed from an electrode mixture paste, includes performing wet preliminary kneading to knead a powder and a solvent with a stirrer, while measuring kneading torque, determining a mixing ratio of the powder to the solvent used in the wet preliminary kneading in the case where the kneading torque once increases as kneading time passes from start of kneading, reaches a peak value, and then decreases, as a desirable mixing ratio, and performing main kneading to mix and knead the powder and the solvent of the electrode mixture paste, at the mixing ratio determined as the desirable mixing ratio, at a shearing speed that does not exceed a speed of shearing a mixture of the powder and the solvent with the stirrer during the wet preliminary kneading, and producing the electrode mixture paste.08-01-2013
20120085968ELECTRODE MATERIAL AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE - To provide a power storage device including an electrode material having a large capacity. First heat treatment is performed on a mixture of a compound containing lithium; a compound containing a metal element selected from manganese, iron, cobalt, and nickel; and a compound containing phosphorus. A cleaning step is performed on the mixture subjected to the first heat treatment. Second heat treatment is performed on the mixture subjected to the cleaning step, so that a lithium phosphate compound is produced. With the use of the lithium phosphate compound, an electrode is formed.04-12-2012
20120085967CATHODE ACTIVE MATERIAL PLATE-LIKE PARTICLE FOR LITHIUM SECONDARY BATTERY - An object of the present invention is to realize more effective intercalation and deintercalation of lithium ions in a cathode active material. The preset invention provides a cathode active material plate-like particle for a lithium secondary battery, the particle having a layered rock salt structure, wherein lithium-intercalation/deintercalation-plane-oriented grains (primary crystal grains whose (003) plane is oriented so as to intersect a plate surface of the plate-like particle) are present in a dispersed state among numerous (003)-plane-oriented grains (primary crystal grains whose (003) plane is oriented in parallel with the plate surface of the plate-like particle).04-12-2012
20130207032LITHIUM IRON SILICATE CATHODE MATERIAL AND ITS PRODUCTION - A method for producing a lithium insertion material including the steps of: providing an iron containing compound, a lithium containing compound and a silicate containing compound; providing a solvent; subjecting the compounds in said solvent to dissolution; obtaining precipitate; and filtering the obtained precipitate from the solution and subject the precipitate to washing and drying.08-15-2013

Patent applications in class HAVING UTILITY AS A REACTIVE MATERIAL IN AN ELECTROCHEMICAL CELL; E.G., BATTERY, ETC.