Title:
FLAME-RETARDANT SHEET, MANUFACTURING METHOD THEREFOR, AND BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2023/189975
Kind Code:
A1
Abstract:
Provided is a flame-retardant sheet that is capable of further suppressing heat propagation between battery cells not only in a normal state but also in an abnormal state, that has excellent resistance to external forces such as bending and twisting, and that can be easily manufactured. A flame-retardant sheet (1) is formed by layering flame-retardant materials (10) and an elastic member (20). By using, for example, resin staples (50) or resin tag pins (60), the joining surfaces (40) of the flame-retardant materials (10) with the elastic member (20) and the joining surfaces (40) of the elastic member (20) with the flame-retardant materials (10) can be joined so as to be moveable along the surfaces of the joining surfaces (40). Further, a battery pack (100) has: a plurality of battery cells (110); a battery case (120) that accommodates the battery cells (110); and the flame-retardant sheet (1).
Inventors:
YAMAGUCHI MASATAKA (JP)
Application Number:
PCT/JP2023/011331
Publication Date:
October 05, 2023
Filing Date:
March 22, 2023
Export Citation:
Assignee:
IBIDEN CO LTD (JP)
International Classes:
B32B7/08; H01M10/658; H01M50/204; H01M50/262
Foreign References:
| JP2021188383A | 2021-12-13 | |||
| JP2020503464A | 2020-01-30 | |||
| JP2021140968A | 2021-09-16 | |||
| JP2002225189A | 2002-08-14 | |||
| JP2018053470A | 2018-04-05 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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