| Patent application number | Description | Published |
|---|
| 20080241704 | Nonaqueous Electrolyte Solution and Lithium Secondary Battery Using Same - The present invention provides a lithium secondary battery having excellent battery characteristics such as battery cycling property, electrical capacity and storage property. | 10-02-2008 |
| 20080248399 | Nonaqueous Electrolytic Solution for Lithium Secondary Battery - Disclosed is a nonaqueous electrolytic solution useful for producing a lithium secondary battery having excellent cycle characteristics. Specifically disclosed is a nonaqueous electrolytic solution for lithium secondary batteries obtained by dissolving an electrolyte salt in a nonaqueous solvent which is characterized by containing 0.1 to 10 wt. % of a tert-alkylbenzene compound and also containing 0.001-0.5 wt. % of a benzene compound, wherein a hydrocarbon group having 1-4 carbon atoms is bonded to a benzene ring via the tertiary carbon atom, relative to the tert-alkylbenzene compound. | 10-09-2008 |
| 20080254367 | LITHIUM SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTIC SOLUTION - The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative electrode comprising metallic lithium, a lithium alloy or a material capable of occluding and releasing lithium, and a nonaqueous electrolyte solution comprising a nonaqueous solvent and an electrolyte dissolved therein can be efficiently prevented by the addition, to the nonaqueous electrolyte solution, of an organic compound which, when the lithium secondary cell is overcharged, decomposes into a decomposition product capable of dissolving out the cobalt or nickel contained in the positive electrode and depositing it ion the negative electrode (for example, a tert-alkylbenzene derivative). | 10-16-2008 |
| 20090053598 | NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME - The present invention provides a nonaqueous electrolytic solution exhibiting excellent battery characteristics such as electrical capacity, cycle property and storage property and capable of maintaining the battery characteristics for a long tire, and a lithium secondary battery using the nonaqueous electrolytic solution. | 02-26-2009 |
| 20090170006 | NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME - The present invention provides a nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, containing 0.01% to 30% by weight of a 1,2-cyclohexanediol derivative having a specific structure; and a lithium secondary battery using the nonaqueous electrolytic solution. The lithium secondary battery exhibits excellent battery characteristics such as electrical capacity, cycle property, and storage property and can maintain excellent long-term battery performance. | 07-02-2009 |
| 20090280404 | NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME - The present invention provides a nonaqueous electrolytic solution exhibiting excellent electrical capacity, long-term cycle property, and storage property in a charged state; and a lithium secondary battery using the nonaqueous electrolytic solution. | 11-12-2009 |
| 20100079110 | NON-AQUEOUS ELECTROLYTIC SOLUTION AND LITHIUM SECONDARY BATTERY - A non-aqueous electrolytic solution favorably employable for a lithium secondary battery employs a non-aqueous electrolytic solution which comprises a non-aqueous solvent and an electrolyte which further contains 0.001 to 0.8 weight % of a biphenyl derivative having the formula: | 04-01-2010 |
| 20100092872 | NONAQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME - The present invention provides (1) a sulfone compounds having a propargyl group, (2) a nonaqueous electrolytic solution for lithium secondary batteries, which comprises an electrolyte salt dissolved in a nonaqueous solvent and contains a sulfone compound having a specific structure that has an SO | 04-15-2010 |
| 20100119955 | ESTER COMPOUND, AND NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY EACH USING THE ESTER COMPOUND - The present invention includes (1) an ester compound having a specific structure, (2) a nonaqueous electrolytic solution for lithium secondary battery comprising an electrolyte dissolved in a nonaqueous solvent and containing an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution, which is excellent in initial battery capacity and cycle property, and (3) a lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution. | 05-13-2010 |
| 20100239919 | NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME - The present invention provides a nonaqueous electrolytic solution exhibiting excellent battery characteristics such as electrical capacity, cycle property and storage property and capable of maintaining the battery characteristics for a long time, and a lithium secondary battery using the nonaqueous electrolytic solution. | 09-23-2010 |
| 20100291437 | PHENYL SULFONATE COMPOUND, NONAQUEOUS ELECTROLYTE SOLUTION USING THE SAME, AND LITHIUM BATTERY - Provided are (1) a novel phenyl sulfonate compound, (2) a nonaqueous electrolytic solution comprising an electrolyte salt dissolved in a nonaqueous solvent and containing a phenyl sulfonate compound of the following general formula (II) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and (3) a lithium battery containing the nonaqueous electrolytic solution and excellent in low-temperature cycle property. | 11-18-2010 |
| 20110045361 | NONAQUEOUS ELECTROLYTE FOR LITHIUM BATTERY AND LITHIUM BATTERY USING SAME - A nonaqueous electrolytic solution for lithium battery comprises an electrolyte salt dissolved in a nonaqueous solvent and contains a carboxylate compound represented by the following general formula (I) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution. | 02-24-2011 |
| 20110064998 | NON-AQUEOUS ELECTROLYTE FOR A LITHIUM BATTERY, LITHIUM BATTERY WHEREIN SAID ELECTROLYTE IS USED, AND HYDROXY-ACID DERIVATIVE FOR USE IN SAID ELECTROLYTE - Disclosed are (1) a nonaqueous electrolytic solution for lithium battery comprising an electrolyte dissolved in a nonaqueous solvent, which contains at least one hydroxy acid derivative compound represented by the formulae (I) and (II) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and which can improve the low-temperature and high-temperature cycle property thereof (wherein R | 03-17-2011 |
| 20110152559 | METHOD FOR PRODUCING ASYMMETRIC CHAIN CARBONATE - An asymmetric chain carbonate can be produced in a single-step reaction comprising a step of reacting methyl nitrite, carbon monoxide, and 0.05-1.5 moles of an aliphatic alcohol having 2-6 carbon atoms or an alicyclic alcohol having 5-6 carbon atoms per one mole of methyl nitrile in a gaseous phase in the presence of a solid catalyst comprising a platinum group metal or a compound thereof placed on a support. | 06-23-2011 |
