Title:
SECONDARY BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC TOOL, ELECTRIC AIRCRAFT, ELECTRIC VEHICLE, AND METHOD FOR MANUFACTURING ELECTRODE WINDING BODY FOR SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/189636
Kind Code:
A1
Abstract:
Provided is a secondary battery having higher performance. The secondary battery comprises an electrode wound body in which a laminated structure obtained by laminating a positive electrode and a negative electrode via a separator is wound around a central axis extending in a first direction, an electrolyte, and a battery can that contains the electrode wound body and the electrolyte. The innermost peripheral portion of the electrode wound body has a shape including 6-12 vertices inclusive in a cross section orthogonal to the first direction.
Inventors:
OGAWA KYOHEI (JP)
MINATOYA RIKAKO (JP)
MINATOYA RIKAKO (JP)
Application Number:
PCT/JP2023/010213
Publication Date:
October 05, 2023
Filing Date:
March 16, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/0587; H01M4/13; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M10/052; H01M10/0566; H01M50/417; H01M50/489
Domestic Patent References:
| WO2021020237A1 | 2021-02-04 |
Foreign References:
| CN112768748A | 2021-05-07 | |||
| CN106025366A | 2016-10-12 | |||
| CN206076410U | 2017-04-05 | |||
| JP2010027415A | 2010-02-04 | |||
| JP2017226117A | 2017-12-28 | |||
| JP2021506078A | 2021-02-18 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
Download PDF:
Previous Patent: BRAIDED SHIELD MEMBER, AND WIRE HARNESS
Next Patent: OPTICAL GAS SENSOR DEVICE, GAS DETECTION METHOD, AND PROGRAM
Next Patent: OPTICAL GAS SENSOR DEVICE, GAS DETECTION METHOD, AND PROGRAM