Title:
CYLINDRICAL BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/124813
Kind Code:
A1
Abstract:
Provided is a cylindrical battery with which it is possible to suppress an increase in weight while increasing capacity. A cylindrical battery (10) includes: an electrode body comprising a positive electrode and a negative electrode, which are wound together via a separator; an electrolyte; a bottomed cylindrical outer can (20) for accommodating the electrode body and the electrolyte; and a sealing body (30) that is fixed to an open end portion (20B) of the outer can (20) by swaging and is for sealing the outer can (20). In regard to the outer can (20), the outer diameter of a body part (20A) for accommodating the electrode body is 20 mm or greater, and the outer diameter of the open end portion (20B) for accommodating the sealing body (30) is less than the outer diameter of the body part (20A).
Inventors:
FUKUOKA TAKAHIRO
YAMASHITA SHUICHI
YOSHIDA SATOSHI
OKUDA KAZUHIRO
YAMASHITA SHUICHI
YOSHIDA SATOSHI
OKUDA KAZUHIRO
Application Number:
PCT/JP2020/043706
Publication Date:
June 24, 2021
Filing Date:
November 25, 2020
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M50/10; H01M50/147
Foreign References:
| JP2006185926A | 2006-07-13 | |||
| JP2016072102A | 2016-05-09 | |||
| JP2007066835A | 2007-03-15 | |||
| JP2018200826A | 2018-12-20 |
Attorney, Agent or Firm:
TOKUDA Yoshiaki et al. (JP)
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