Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/065129
Kind Code:
A1
Abstract:
The present invention provides a battery which has high impact resistance with respect to impact when dropped or the like. A secondary battery which comprises a battery element that is obtained by stacking a positive electrode and a negative electrode with a separator being interposed therebetween, an outer package member in which the battery element is contained, and a fixation member, wherein: the battery element has a flat part to which at least a part of the fixation member is bonded; and an area ratio, which is a value obtained by dividing an area of the fixation member, said area being bonded to the flat part, by the area of the battery element when the flat part of the battery element is viewed in plan, is 0.40 or more.
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Inventors:
TAKEMIYA RIE (JP)
Application Number:
PCT/JP2021/033677
Publication Date:
March 31, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/04; H01M10/0585; H01M10/0587
Foreign References:
| JP2003151614A | 2003-05-23 | |||
| US20180287184A1 | 2018-10-04 | |||
| JP2009289662A | 2009-12-10 |
Attorney, Agent or Firm:
SUGIURA, Takuma et al. (JP)
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