Title:
NONAQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2010/082657
Kind Code:
A1
Abstract:
Provided is a nonaqueous electrolyte secondary cell wherein the capacity of the secondary cell can be prevented from being reduced in charge/discharge cycles at a high temperature (not less than 45°C). In the nonaqueous electrolyte secondary cell, an electrode element obtained by stacking a positive electrode and a negative electrode, an nonaqueous electrolytic solution containing a carbonate solvent, and a gel are contained in an exterior element of the secondary cell. The negative electrode contains silicon oxide designated by SiOx (0 < x ≤2) as a negative-electrode active material. The gel contains a cross-linked unsaturated carboxylate ester copolymer and a carbonate solvent identical to the carbonate solvent contained in the nonaqueous electrolytic solution.
Inventors:
IRIYAMA JIRO (JP)
NUMATA TATSUJI (JP)
KASAHARA RYUICHI (JP)
KAJITA TETSUYA (JP)
NUMATA TATSUJI (JP)
KASAHARA RYUICHI (JP)
KAJITA TETSUYA (JP)
Application Number:
PCT/JP2010/050528
Publication Date:
July 22, 2010
Filing Date:
January 19, 2010
Export Citation:
Assignee:
NEC TOKIN CORP (JP)
IRIYAMA JIRO (JP)
NUMATA TATSUJI (JP)
KASAHARA RYUICHI (JP)
KAJITA TETSUYA (JP)
IRIYAMA JIRO (JP)
NUMATA TATSUJI (JP)
KASAHARA RYUICHI (JP)
KAJITA TETSUYA (JP)
International Classes:
H01M10/0565; H01M4/48; H01M10/0525; H01M10/058
Foreign References:
| JP2007227301A | 2007-09-06 | |||
| JP2007209975A | 2007-08-23 | |||
| JP2997741B2 | 2000-01-11 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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