Title:
SECONDARY BATTERY, BATTERY PACK, ELECTRONIC DEVICE, POWER TOOL, ELECTRICALLY POWERED AIRCRAFT, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/090367
Kind Code:
A1
Abstract:
In this secondary battery, a plurality of radially adjacent first edge parts of an electrode winding body in a wound positive electrode exposed part and/or a plurality of radially adjacent second edge parts in a wound negative electrode exposed part are bent toward a central axis to overlap each other. In the present invention, an electrolytic solution contains LiPF6 as an electrolyte salt, and the concentration of the electrolyte salt in the electrolytic solution is 1.25 mol/kg or greater and 1.45 mol/kg or less.
Inventors:
IWAMA MASAYUKI (JP)
Application Number:
PCT/JP2022/042586
Publication Date:
May 25, 2023
Filing Date:
November 16, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/0587; H01M4/13; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M10/052; H01M10/0567; H01M10/0568; H01M10/0569
Domestic Patent References:
| WO2021020237A1 | 2021-02-04 | |||
| WO2021044968A1 | 2021-03-11 |
Foreign References:
| JP2010015968A | 2010-01-21 | |||
| JP2005056841A | 2005-03-03 | |||
| JP2008210767A | 2008-09-11 | |||
| JP2021028957A | 2021-02-25 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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