Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/010085
Kind Code:
A1
Abstract:
A secondary battery according to the present invention is provided with: a positive electrode which contains a positive electrode active material that absorbs and desorbs lithium, and which achieves a positive electrode adsorption/desorption capacity when lithium is absorbed and desorbed at the positive electrode active material; a negative electrode which comprises a negative electrode collector, a base layer that is provided on the negative electrode collector and contains a carbon material, and a negative electrode active material layer that is provided on the base layer and contains a negative electrode active material which absorbs and desorbs lithium and contains a carbon-based active material and a silicon-based active material, said negative electrode active material achieving a negative electrode adsorption/desorption capacity, which is lower than the positive electrode adsorption/desorption capacity, when lithium is absorbed and desorbed at the negative electrode active material; and an electrolyte solution.
Inventors:
WATANABE MIKIO (JP)
Application Number:
PCT/JP2020/023942
Publication Date:
January 21, 2021
Filing Date:
June 18, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M4/13; H01M4/133; H01M4/134; H01M4/36; H01M4/38; H01M4/48; H01M4/587; H01M4/66; H01M10/052; H01M10/0566
Domestic Patent References:
| WO2011129066A1 | 2011-10-20 |
Foreign References:
| JPH0997625A | 1997-04-08 | |||
| JP2011228052A | 2011-11-10 | |||
| JP2017216090A | 2017-12-07 | |||
| JP2000228199A | 2000-08-15 | |||
| JP2001176557A | 2001-06-29 | |||
| JP2002151154A | 2002-05-24 | |||
| JP2005259617A | 2005-09-22 | |||
| JPS6313282A | 1988-01-20 | |||
| JP2011096643A | 2011-05-12 | |||
| JPH0229700B2 | 1990-07-02 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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