Title:
NON-AQUEOUS ELECTROLYTE AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/115690
Kind Code:
A1
Abstract:
The present invention provides a non-aqueous electrolyte and an electricity storage device. The non-aqueous electrolyte is capable of improving electrochemical characteristics when the electricity storage device is used at a high temperature, and is also capable of suppressing the generation of gas as well as the capacity retention after high-temperature cycling. The non-aqueous electrolyte is used in the electricity storage device. A non-aqueous electrolyte in which an electrolyte salt is dissolved in a non-aqueous solvent, the non-aqueous electrolyte characterized in containing a phenyl ester compound represented by formula (I) (in the formula, Rf represents a C1-6 fluoroalkyl, X represents a halogen atom, p and q represent integers of 1 to 4, and (p+q) is 5 or less; A has a structure represented by -S(=O)2-, -C(=O)-, -C(=O)-O-, -C(=O)-L1-C(=O)-, -C(=O)-L2-P(=O)(OR)-O- or -P(=O)(OR-O-); Y represents a fluorine, hydrogen, alkyl, alkenyl, alkynyl or an aryl; L1 represents an alkylene, alkenylene, alkynylene, or a direct bonding; L2 represents an alkylene, and R represents an alkyl; Y can be a fluorine only when A is -S(=O)2-; and Y can be a hydrogen only when A is -C(=O)-; and at least one hydrogen in each of the alkyl, alkenyl, alkynyl, aryl, alkylene, alkenylene, and alkynylene groups may be substituted by a halogen).
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Inventors:
SHIKITA SHOJI (JP)
Application Number:
PCT/JP2014/051020
Publication Date:
July 31, 2014
Filing Date:
January 20, 2014
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
International Classes:
H01M10/0567; H01G11/64; H01M6/16
Domestic Patent References:
| WO2011025016A1 | 2011-03-03 | |||
| WO2009107786A1 | 2009-09-03 |
Foreign References:
| JP2000106209A | 2000-04-11 | |||
| JP2011165583A | 2011-08-25 |
Attorney, Agent or Firm:
KATAOKA, Makoto et al. (JP)
Makoto Kataoka (JP)
Makoto Kataoka (JP)
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