| Patent application number | Description | Published |
|---|
| 20080226983 | NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE SAME - The invention provides a non-aqueous electrolyte including: at least one kind selected from the compounds represented by Chemical formula 1: | 09-18-2008 |
| 20080286648 | ELECTROLYTIC SOLUTION AND BATTERY - A battery capable of securing the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The electrolytic solution contains a solvent, an electrolyte salt, and a sulfone compound having a given structure (sulfonic acid, carboxylic acid anhydride not having an aromatic ring). Compared to a case that an electrolytic solution does not contain the foregoing sulfone compound, the decomposition reaction of the electrolytic solution is prevented. | 11-20-2008 |
| 20080292970 | ELECTROLYTIC SOLUTION AND BATTERY - A battery capable of improving cycle characteristics is provided. A separator arranged between a cathode and an anode is impregnated with an electrolytic solution. The electrolytic solution includes: a solvent; and an electrolytic salt, in which the solvent includes a compound having a difluoroalkene structure. The content of the compound having a difluoroalkene structure in the solvent is within a range from 1 wt % to 5 wt % both inclusive. | 11-27-2008 |
| 20080292971 | ELECTROLYTIC SOLUTION AND BATTERY - A battery capable of improving high-temperature characteristics is provided. The battery includes a cathode, an anode and an electrolytic solution. A separator provided between the cathode and the anode is impregnated with the electrolytic solution. A solvent of the electrolytic solution includes a main solvent such as a cyclic carbonate which includes halogen and a sub solvent such as carbonate dimer. | 11-27-2008 |
| 20080311472 | ANODE AND METHOD OF MANUFACTURING THE SAME, AND BATTERY AND METHOD OF MANUFACTURING THE SAME - A battery capable of improving cycle characteristics is provided. An anode includes: an anode current collector; an anode active material arranged on the anode current collector; and a coating arranged on the anode active material layer, in which the coating includes at least one of a metal salt represented by Chemical Formula 1 and a metal salt of oxocarbonic acid. | 12-18-2008 |
| 20090004568 | ANODE AND BATTERY - A battery capable of improving the cycle characteristics is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode current collector, an anode active material layer provided on the anode current collector, and a coat provided on the anode active material layer, in which the coat contains a fluorine resin having an ether bond. | 01-01-2009 |
| 20090053612 | ELECTROLYTIC SOLUTIONS AND BATTERY - A battery capable of improving battery characteristics is provided. The battery includes a cathode, an anode and an electrolytic solution, and a separator arranged between the cathode and the anode is impregnated with the electrolytic solution. The solvent of the electrolytic solution includes a sulfone compound having a sulfonyl fluoride type structure in which a sulfonyl group and a fluorine group are bonded together, and at least one kind selected from the group consisting of a chain carbonate which includes a halogen and a cyclic carbonate which includes a halogen. | 02-26-2009 |
| 20090061325 | ANODE, METHOD OF MANUFACTURING SAME, SECONDARY BATTERY, AND METHOD OF MANUFACTURING SAME - A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode current collector, an anode active material layer that is provided on the anode current collector, and contains an anode active material containing at least one of a simple substance of silicon, an alloy of silicon, a compound of silicon, a simple substance of tin, an alloy of tin, and a compound of tin, and a coat that is provided on the anode active material layer, and contains an ionic polymer containing lithium. | 03-05-2009 |
| 20090092892 | ANODE AND METHOD OF MANUFACTURING THE SAME, AND BATTERY AND METHOD OF MANUFACTURING THE SAME - An anode capable of improving charge-discharge efficiency, and a method of manufacturing the anode, and a battery using the anode are provided. An anode | 04-09-2009 |
| 20090111020 | ANODE AND METHOD OF MANUFACTURING THE SAME, AND SECONDARY BATTERY - An anode and a secondary battery capable of improving the charge and discharge efficiency are provided. The anode includes an anode current collector, and an anode active material layer provided on the anode current collector. The anode active material layer has a plurality of anode active material particles containing at least one of a simple substance of silicon, a compound of silicon, a simple substance of tin and a compound of tin, and has a coat containing an oxo acid salt in at least part of the surface of the anode active material particles. | 04-30-2009 |
| 20090123849 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more. | 05-14-2009 |
| 20090136855 | ANODE, BATTERY, AND METHODS OF MANUFACTURING THEM - A battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has a coat on an anode active material layer provided on an anode current collector. The coat contains a metal salt. The metal salt has a hydroxyl group and at least one of a sulfonic acid group and a carboxylic acid group. Thereby, lithium ions are easily inserted in the anode and extracted from the anode, and decomposition of the electrolytic solution is prevented. | 05-28-2009 |
| 20090169985 | ELECTROLYTIC SOLUTION, SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME, AND SULFONE COMPOUND - A battery capable of improving the cycle characteristics is provided. The battery includes a cathode and an anode oppositely arranged with a separator in between, and an electrolytic solution. At least one of the cathode, the anode, the separator, and the electrolytic solution contains a sulfone compound having an acid anhydride group and a sulfonyl group. | 07-02-2009 |
| 20090233179 | ELECTROLYTIC SOLUTION AND SECONDARY BATTERY - A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains a solvent contains a sulfone compound having a structure in which —S(═O) | 09-17-2009 |
| 20090233180 | SECONDARY BATTERY - A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode contains an anode active material containing a material that is capable of inserting and extracting an electrode reactant and has at least one of metal elements and metalloid elements. Further, the electrolytic solution contains a solvent containing a sulfone compound having a structure in which —S(═O) | 09-17-2009 |
| 20090263726 | ANODE AND METHOD OF MANUFACTURING SAME, SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME, AND SULFONE COMPOUND - A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode and an anode oppositely arranged with a separator in between, and an electrolytic solution. At least one of the cathode, the anode, the separator, and the electrolytic solution contains a sulfone compound having a carbonate group and a sulfonyl group. | 10-22-2009 |
| 20100035161 | BATTERY AND ELECTRODE - An electrode includes: an electrode collector and an electrode active material layer, wherein a film containing a salt represented by the following formula (I) is provided on the electrode active material layer: | 02-11-2010 |
| 20100075233 | BATTERY AND ELECTRODE - A positive electrode includes: a salt represented by the following formula (1) on the surface of an active material contained in a positive electrode active material layer provided on a positive electrode collector, or at least on the surface of the positive electrode active material layer | 03-25-2010 |
| 20100178569 | ELECTROLYTE AND SECONDARY BATTERY - An electrolyte includes a solvent and an electrolyte salt. The solvent contains at least one selected from ester compounds, lithium monofluorophosphate, and lithium difluorophosphate, and at least one selected from anhydrous compounds. The ester compounds are chain compounds having ester moieties, such as (—O—C(═O)—O—R), at both ends. The anhydrous compounds are cyclic compounds having, for example, a disulfonic anhydride group, (—S(O═) | 07-15-2010 |
| 20100190054 | BATTERY - A battery includes: a positive electrode; a negative electrode; a nonaqueous electrolyte; and a separator, wherein the nonaqueous electrolyte contains at least one sulfonic anhydride selected from the group consisting of compounds represented by the following chemical formulae (1) to (4) and an aromatic compound represented by the following chemical formula (5). | 07-29-2010 |
| 20100190065 | ELECTROLYTE AND SECONDARY BATTERY - An electrolyte contains a solvent and an electrolyte salt. The solvent contains an organic acid and a sulfone compound in combination. The organic acid has a moiety containing an electron-withdrawing group such as a carbonyl group (—C(═O)—) or a sulfonyl group (—S(═O) | 07-29-2010 |
| 20100194347 | BATTERY METHOD OF CHARGING AND DISCHARGING THE BATTERY AND CHARGE-DISCHARGE CONTROL DEVICE FOR THE BATTERY - A method of charging and discharging a battery that includes an anode. The anode includes silicon and is capable of inserting and extracting lithium. At the time of charge, the potential of the anode vs. lithium metal as a reference potential is 0.04 V or more. At the time of discharge, the potential of the anode vs. lithium metal as a reference potential is 1.4 V or less. | 08-05-2010 |
| 20100196764 | ELECTROLYTE AND SECONDARY BATTERY - A secondary battery capable of achieving superior cycle characteristics, superior storage characteristics, and superior swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolyte containing a solvent and an electrolyte salt. The solvent contains halogenated cyclic ester carbonate. The halogenated cyclic ester carbonate is a cyclic compound that has one or more fluorine groups, one or more fluorinated alkyl groups, and a carbonyl group. | 08-05-2010 |
| 20100216017 | BATTERY - A battery capable of improving the cycle characteristics even if the thickness of an anode active material layer is increased is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode active material layer on an anode current collector, and the anode active material layer contains a carbon material and has a thickness of 30 μm or more. The electrolytic solution contains a solvent and an electrolyte salt, and the solvent contains at least one of sulfone compounds such as a cyclic disulfonic acid anhydride. | 08-26-2010 |
| 20100216034 | SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein an open circuit voltage in a completely charged state per pair of a positive electrode and a negative electrode is from 4.25 to 6.00 V; and at least one member selected from the group consisting of sulfonic anhydrides represented by the following formulae (1) to (4) is contained in a nonaqueous electrolytic solution | 08-26-2010 |
| 20100304224 | NONAQUEOUS ELECTROLYTIC SOLUTION, POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolytic solution includes an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolyte solution contains at least one compound selected from the group consisting of a chain compound having a hydroxyl group and a carbon-carbon double bond, a light metal alkoxide thereof and a derivative thereof obtained by substituting the hydroxyl group with a protective group. | 12-02-2010 |
| 20100316908 | BATTERY - A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; a nonaqueous electrolyte containing an electrolyte salt; and a separator, wherein in the electrolyte salt, a molar fraction x of at least one member selected among electrolyte salts represented by the following formulae (1) and (2) occupying in the whole electrolyte salt satisfies a relationship of (0.5| 12-16-2010 | |
| 20110052953 | NEGATIVE ELECTRODE, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A negative electrode includes: a negative electrode collector; and a negative electrode active material layer covering at least one principal plane of the negative electrode collector and containing at least a negative electrode active material, wherein the negative electrode active material contained in a region of up to at least 50% of a thickness from the surface of the negative electrode active material layer is covered with a solid electrolyte interface coating, and the solid electrolyte interface coating contains a product with a crosslinked isocyanate group in an isocyanate compound. | 03-03-2011 |
| 20110086269 | ANODE AND METHOD OF MANUFACTURING THE SAME, AND BATTERY AND METHOD OF MANUFACTURING THE SAME - An anode in which an anode active material layer is arranged on an anode current collector. The anode active material layer includes anode active material particles made of an anode active material including at least one of silicon and tin as an element. An oxide-containing film including an oxide of at least one kind selected from the group consisting of silicon, germanium and tin is formed in a region in contact with an electrolytic solution of the surface of each anode active material particle by a liquid-phase method such as a liquid-phase deposition method. The region in contact with the electrolytic solution of the surface of each anode active material particle is covered with the oxide-containing film, to thereby improve the chemical stability of the anode and the charge-discharge efficiency. The thickness of the oxide-containing film is preferably within a range from 0.1 nm to 500 nm both inclusive. | 04-14-2011 |
