Nonaqueous electrolyte solution and lithium secondary...

Details Nonaqueous electrolyte solution and lithium secondary... Nonaqueous electrolyte solution and lithium secondary...

2011-08-30

2011-08-30

Michener, Jennifer K. (Department: 1728)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S324000, C429S327000, C429S329000, C429S330000, C429S331000, C540S006000, C540S017000, C540S031000, C549S200000, C549S330000, C549S333000, C549S335000

Reexamination Certificate

active

08007938

ABSTRACT:
A non-aqueous electrolyte solution is provided that realizes a large capacity, exhibits high storage characteristics and cycle characteristics, and is capable of inhibiting gas generation. The non-aqueous electrolyte solution comprises a lithium salt; at least one non-aqueous solvent selected from the group consisting of a chain carbonate, a cyclic carbonate, a chain carboxylic acid ester, a cyclic carboxylic acid ester, a chain ether, and a cyclic ether; and a compound expressed by the following formula (II)awherein R41-R52independently of each other, represent a hydrogen atom, an alkyl group having 1-12 carbon atoms that may be substituted by a fluorine atom, an alkenyl group having 1-12 carbon atoms that may be substituted by a fluorine atom, an aryl group having 6-12 carbon atoms that may be substituted by a fluorine atom, or an aralkyl group having 7-12 carbon atoms that may be substituted by a fluorine atom, wherein each group R41-R52may have an ether linkage in its chain, and R41may be linked with R42, and R43may be linked with R44, to form a ring, said ring optionally comprising an oxygen atom.

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