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Title:
二次電池の非水電解液用添加剤、二次電池用非水電解液及び非水電解液二次電池
Document Type and Number:
Japanese Patent JP5738011
Kind Code:
B2
Abstract:
The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes at least one compound selected from a first compound group consisting of phosphazene compounds represented by the following general formula (1): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ(NPR 2 ) n €ƒ€ƒ€ƒ€ƒ€ƒ(1) wherein each R independently represents fluorine or a substituent including an organic group substituted with fluorine, at least one of the Rs represents the substituent including an organic group substituted with fluorine, and n is from 3 to 14; and includes at least one compound selected from a second compound group consisting of borate represented by the following general formula (2), bis(oxalato)borate, difluoro(oxalato)borate, tris(oxalato)phosphate, difluoro(bisoxalato)phosphate, and tetrafluoro(oxalato)phosphate: wherein A a+ represents a cation, and a represents the valency of the cation.

Inventors:
Otsuki Pearl
Koichi Sato
Shoichi Tsujioka
Aiichiro Fujiwara
Application Number:
JP2011048175A
Publication Date:
June 17, 2015
Filing Date:
March 04, 2011
Export Citation:
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Assignee:
Bridgestone Corporation
Central Glass Co., Ltd.
International Classes:
H01M10/0567; H01M10/052; H01M10/0568; H01M10/0569
Domestic Patent References:
JP2009129541A
JP2001052736A
Attorney, Agent or Firm:
Kenji Sugimura
Kazuyuki Tomita