Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/208978
Kind Code:
A1
Abstract:
This lithium ion secondary battery (1) comprises: a negative electrode (12); a positive electrode (10); a nonaqueous electrolyte (18) including a lithium salt; an aqueous electrolyte (16) including a lithium salt; and a partition wall layer (14) disposed between the negative electrode (12) and the positive electrode (10). The aqueous electrolyte (16) is in contact with the positive electrode (10), and the nonaqueous electrolyte (18) is in contact with the negative electrode (12). The partition wall layer (14) includes a nonaqueous solid electrolyte in which a matrix polymer and a nonaqueous electrolytic solution are formed into a complex. The matrix polymer includes a copolymer of acrylonitrile and at least one of methyl methacrylate, methyl acrylate, and vinyl acetate.
Inventors:
IIDA KAZUHIRO
TAKEZAWA HIDEHARU
TAKEZAWA HIDEHARU
Application Number:
PCT/JP2021/041878
Publication Date:
October 06, 2022
Filing Date:
November 15, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M10/36; H01M10/052; H01M10/0568; H01M50/42; H01M50/426; H01M50/449
Domestic Patent References:
| WO2011089710A1 | 2011-07-28 |
Foreign References:
| JP2018022655A | 2018-02-08 | |||
| JP2020198289A | 2020-12-10 | |||
| JP2019046687A | 2019-03-22 | |||
| JP2020149930A | 2020-09-17 | |||
| JP2012028017A | 2012-02-09 | |||
| JP2019160734A | 2019-09-19 | |||
| JPH0123453B2 | 1989-05-02 | |||
| JP2018198131A | 2018-12-13 | |||
| JP2018156895A | 2018-10-04 | |||
| JP2018156837A | 2018-10-04 |
Other References:
ELECTROCHIMICA ACTA, vol. 49, 2004, pages 3339 - 3345
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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