Title:
NONAQUEOUS ELECTROLYTE SOLUTION AND SECONDARY BATTERY USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/115041
Kind Code:
A1
Abstract:
Disclosed is a nonaqueous electrolyte solution which contains a nonaqueous solvent, an electrolyte salt dissolved in the nonaqueous solvent, and a conjugated carbonyl compound represented by formula (1) and contained in the nonaqueous electrolyte solution. A secondary battery using this nonaqueous electrolyte solution has excellent cycle characteristics in a high temperature environment even in cases where a negative electrode active material containing silicon is used therein.
(In the formula, R1 represents R2a or -CO-R2a, and R2a represents the same as R2 which represents a hydrogen atom, an acyl group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a substituted or unsubstituted aromatic group, an oxyalkylene group, an alkoxy group, a cycloalkyloxy group, an alkenyloxy group, an alkynyloxy group, an aromatic oxy group, an oxyalkyleneoxy group or the like.)
Inventors:
SUGURO MASAHIRO (JP)
SHIMURA MIDORI (JP)
SHIMURA MIDORI (JP)
Application Number:
PCT/JP2013/051351
Publication Date:
August 08, 2013
Filing Date:
January 23, 2013
Export Citation:
Assignee:
NEC CORP (JP)
SUGURO MASAHIRO (JP)
SHIMURA MIDORI (JP)
SUGURO MASAHIRO (JP)
SHIMURA MIDORI (JP)
International Classes:
H01M10/0567; H01M2/02; H01M4/36; H01M4/38; H01M4/485; H01M4/62; H01M10/052
Foreign References:
| JP2007066864A | 2007-03-15 | |||
| JP2001256995A | 2001-09-21 | |||
| JP2008251212A | 2008-10-16 |
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)
Katsuhiro Ito (JP)
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Claims: