Title:
METHOD FOR PRODUCING LITHIUM ION POWER STORAGE DEVICE, AND LITHIUM ION POWER STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/014476
Kind Code:
A1
Abstract:
A lithium ion power storage device according to the present invention comprises a step for forming a cylindrical cell (3) and a step for having the cylindrical cell (3) contained in a casing. In the step for forming a cylindrical cell (3), stacked electrode foils (9) and a separator (10) are rolled up, while applying a tension to the electrode foils (9) and the separator (10) in a stretching direction (De). In the step for forming a cylindrical cell (3), a cylindrical cell (3) is formed by rolling up the electrode foils (9) and the separator (10) into a cylindrical form. In the step for having the cylindrical cell (3) contained in a casing, the cylindrical cell (3) is contained in a tubular casing together with an electrolyte solution. In the step for forming a cylindrical cell (3), a cylindrical cell (3) wherein a pressure of 0.5 (MPa) to 0.7 (MPa) is applied between the electrode foils (9), which face each other with a separator (10) being interposed therebetween, is formed.
Inventors:
NOTO KENICHI (JP)
KASAMA RYOTA (JP)
KIMURA YUIMA (JP)
NAKAMURA FUMIYA (JP)
KASAMA RYOTA (JP)
KIMURA YUIMA (JP)
NAKAMURA FUMIYA (JP)
Application Number:
PCT/JP2023/025722
Publication Date:
January 18, 2024
Filing Date:
July 12, 2023
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
H01G11/84; H01G11/06; H01G13/02; H01M10/0587
Domestic Patent References:
| WO2020004343A1 | 2020-01-02 | |||
| WO2018168549A1 | 2018-09-20 |
Foreign References:
| JP2001057243A | 2001-02-27 | |||
| JP2017045561A | 2017-03-02 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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