Title:
CYLINDRICAL BATTERY GASKET, AND CYLINDRICAL BATTERY PROVIDED WITH SAID GASKET
Document Type and Number:
WIPO Patent Application WO/2024/053272
Kind Code:
A1
Abstract:
A cylindrical battery gasket (32) has insulation properties and is to be fitted with a sealing body (24) for sealing an opening of a bottomed exterior can (10) for a cylindrical battery. The gasket has a bottom part, and a cylindrical circumferential wall rising upwardly from a peripheral portion of the bottom part. An inclined surface (32A) is provided to the entire circumference of the outer circumference portion of the gasket in a manner such that the outer diameter of the circumferential wall increases upward and becomes larger than the inner diameter of an opening end part (10A) of the exterior can. The circumferential wall has a shape in which the thickness of the wall gradually increases toward the upper portion of the wall.
Inventors:
NOMURA FUMIHIRO (JP)
Application Number:
PCT/JP2023/027320
Publication Date:
March 14, 2024
Filing Date:
July 26, 2023
Export Citation:
Assignee:
FDK CORP (JP)
International Classes:
H01M50/184; H01M50/107; H01M50/152; H01M50/167; H01M50/586; H01M50/593
Domestic Patent References:
| WO2022085318A1 | 2022-04-28 | |||
| WO2022091934A1 | 2022-05-05 | |||
| WO2021200439A1 | 2021-10-07 |
Foreign References:
| JP2022531845A | 2022-07-12 | |||
| JP2007184270A | 2007-07-19 |
Attorney, Agent or Firm:
YAMAZAKI, Takahiro (JP)
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