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Hideo Sakata, Settsu-Shi JP

Hideo Sakata, Settsu-Shi JP

Patent application numberDescriptionPublished
20090305144ELECTROCHEMICAL DEVICE - There is provided an electrochemical device provided with an electrolytic solution comprising (I) a solvent for dissolving an electrolyte salt comprising (A) a fluorine-containing ether represented by the formula (1):12-10-2009
20100062344NON-AQUEOUS ELECTROLYTIC SOLUTION - There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1):03-11-2010
20100310943SOLVENT FOR DISSOLVING ELECTROLYTE SALT OF LITHIUM SECONDARY BATTERY - There are provided a solvent for dissolving an electrolyte salt of lithium secondary battery comprising at least one fluorine-containing solvent (I) selected from the group consisting of a fluorine-containing ether, a fluorine-containing ester and fluorine-containing chain carbonate, 1,2-dialkyl-1,2-difluoroethylene carbonate (II) and other carbonate (III), a non-aqueous electrolytic solution comprising the solvent and an electrolyte salt, and a lithium secondary battery using the non-aqueous electrolytic solution. The solvent for dissolving an electrolyte salt provides a lithium secondary battery being excellent particularly in discharge capacity, rate characteristic and cycle characteristic and has enhanced incombustibility (safety) and the non-aqueous electrolytic solution comprises the solvent and an electrolyte salt.12-09-2010
20110008681ELECTROLYTIC SOLUTION - There is provided an electrolytic solution causing no phase separation even at low temperatures, being excellent in flame retardancy and noncombustibility, assuring high solubility of an electrolyte salt, having a high discharge capacity, being excellent in charge-discharge cycle characteristics and being suitable for electrochemical devices such as lithium ion secondary batteries. The electrolytic solution comprises a solvent (I) for dissolving an electrolyte salt comprising a fluorine-containing ether (A) represented by the formula: Rf01-13-2011
20110111307LITHIUM SECONDARY CELL - There is provided a lithium secondary cell having specifically excellent discharge capacity, rate characteristics and further cycle characteristics and improved incombustibility (safety). The lithium secondary cell comprises a negative electrode, a non-aqueous electrolytic solution and a positive electrode, in which an active material for the negative electrode comprises lithium titanate and the non-aqueous electrolytic solution comprises a fluorine-containing solvent.05-12-2011
20110123872NON-AQUEOUS ELECTROLYTIC SOLUTION - There is provided a non-aqueous electrolytic solution assuring good solubility of an electrolyte salt and having enough cell characteristics (charge and discharge cycle characteristic, discharge capacity, and the like), and the non-aqueous electrolytic solution comprises a solvent for dissolving an electrolyte salt comprising (A) at least one fluorine-containing solvent selected from the group consisting of fluorine-containing ethers and fluorine-containing carbonates, (B) a non-fluorine-containing cyclic carbonate and (C) a chain ester represented by the formula (C): R05-26-2011
20110195317SOLVENT FOR DISSOLVING ELECTROLYTE SALT OF LITHIUM SECONDARY CELL - A solvent for a non-aqueous electrolytic solution providing a lithium secondary cell being specifically excellent in discharge capacity, rate characteristic and cycle characteristic and having improved incombustibility (safety), a non-aqueous electrolytic solution using the solvent, and further a lithium secondary cell are provided. The solvent for dissolving an electrolyte salt of a lithium secondary cell comprises at least one fluorine-containing solvent (I) selected from the group consisting of fluorine-containing ether, fluorine-containing ester and fluorine-containing chain carbonate, a fluorine-containing aromatic compound (II), in which a part or the whole of hydrogen atoms are replaced by fluorine atoms, and other carbonate (III), the non-aqueous electrolytic solution comprises the solvent and an electrolyte salt, and the lithium secondary cell uses the non-aqueous electrolytic solution.08-11-2011
20110318638POSITIVE ELECTRODE MIXTURE SLURRY FOR LITHIUM SECONDARY BATTERIES, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY THAT USE SAID SLURRY - The invention provides a stable positive-electrode mixture slurry that is not subject to gelation, a positive electrode with abundant flexibility, and a lithium secondary battery with excellent battery characteristics. The slurry comprises a positive-electrode active material, a binder, and an organic solvent, the positive-electrode active material is a lithium-containing complex metal oxide represented by Formula: Li12-29-2011

Patent applications by Hideo Sakata, Settsu-Shi JP