Title:
SEALING MEMBER AND CYLINDRICAL LITHIUM ION BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/054356
Kind Code:
A1
Abstract:
Provided is a sealing member which is not broken when caulking an end part thereof. This sealing member used in a cylindrical lithium ion battery is used in a state of being interposed between a bottomed cylindrical container and a lid, composed of a perfluoropolymer, and characterized in that the dimension satisfies the following relational expressions. (Relational expressions) When the distance in the axial direction from the upper surface part to the tip part of the lid in the container is defined as HC, the distance in the axial direction from the upper surface part to the tip part of the lid in the sealing member is defined as HG, the thickness of the sealing member is defined as TG, the value obtained by dividing TG by HG is defined as X (=TG/HG), and the value obtained by dividing HG by HC is defined as Y (=HG/HC), X>0.800TG-0.324 (1) Y<-0.778TG+1.670 (2) Y>0.594X2-1.176X+0.913 (3)
Inventors:
USHIJIMA TAKERU (JP)
YANAGIGUCHI TOMIHIKO (JP)
AOYAMA TAKAHISA (JP)
LIU JIHONG (JP)
SUKEGAWA MASAMICHI (JP)
TSUDA HAYATO (JP)
YANAGIGUCHI TOMIHIKO (JP)
AOYAMA TAKAHISA (JP)
LIU JIHONG (JP)
SUKEGAWA MASAMICHI (JP)
TSUDA HAYATO (JP)
Application Number:
PCT/JP2021/022452
Publication Date:
March 17, 2022
Filing Date:
June 14, 2021
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F16J15/10; H01M50/107; H01M50/184; H01M50/19
Domestic Patent References:
| WO2019163440A1 | 2019-08-29 |
Foreign References:
| JP2015178899A | 2015-10-08 | |||
| JP2020074290A | 2020-05-14 | |||
| JPH10302737A | 1998-11-13 | |||
| JP2010282824A | 2010-12-16 | |||
| JP2001028259A | 2001-01-30 | |||
| JP2014524118W | ||||
| JP2001313011A | 2001-11-09 |
Attorney, Agent or Firm:
TASS MEISTER PATENT FIRM (JP)
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