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Patent Searching and Data


Title:
BATTERY CELL CASE AND BATTERY MANUFACTURING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/066112
Kind Code:
A1
Abstract:
[Problem] To provide a battery cell case with a novel configuration in which the periphery of an opening in a surface which serves as an outer surface of a container lid having the opening is not resin laminated. [Solution] A battery cell case in which a container body and a container lid are joined by twist fastening or welding, wherein: the container body is made of a steel plate that is resin laminated on a surface which serves as the inner surface of the container body; the resin laminate is made of a film of which a polyolefinic resin is the main ingredient; the container lid is made of a metallic plate; the container lid has an opening for releasing a gas generated by electrolyte injection or preliminary charging; and a range of at least 2 mm from the periphery of the opening in the surface which serves as the outer surface of the lid container is not resin laminated.

Inventors:
TAKAHASHI TAKEHIRO (JP)
KOBAYASHI AKINOBU (JP)
Application Number:
JP2020/037469
Publication Date:
April 08, 2021
Filing Date:
October 01, 2020
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
H01M50/10; H01M50/147; H01M50/172; H01M50/543; H01M50/60
Attorney, Agent or Firm:
AOKI, Atsushi et al. (Toranomon Hills Mori Tower 23-1, Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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