Title:
SECONDARY BATTERY, ELECTRONIC DEVICE, AND ELECTRIC TOOL
Document Type and Number:
WIPO Patent Application WO/2022/070824
Kind Code:
A1
Abstract:
Provided is a battery in which it is possible to ensure electrical insulation between a battery lid and a battery can even when exposed to an aqueous solution such as seawater. A secondary battery in which a band-form positive electrode and a band-form negative electrode are laminated with a separator interposed therebetween, a wound electrode winding body and an electrolytic solution are accommodated in a battery can, and an opening in the battery can is hermetically sealed by a safety valve mechanism and a battery lid with a gasket interposed therebetween, wherein the battery lid has a terminal part and a flange part, and also has a metal layer between the gasket and an outer-side main surface from among the main surfaces of the flange part.
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Inventors:
SODEYAMA KUNIO (JP)
UMEKAWA MASAFUMI (JP)
UMEKAWA MASAFUMI (JP)
Application Number:
PCT/JP2021/033151
Publication Date:
April 07, 2022
Filing Date:
September 09, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/04; H01M50/159; H01M50/164; H01M50/186; H01M50/191; H01M50/197; H01M50/198; H01M50/342; H01M50/559; H01M50/562; H01M50/571
Foreign References:
JP2010238462A | 2010-10-21 | |||
JPH1040951A | 1998-02-13 | |||
JP2014103026A | 2014-06-05 |
Attorney, Agent or Firm:
SUGIURA, Takuma et al. (JP)
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