Title:
FIRE SPREADING PREVENTION UNIT AND BATTERY PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2023/026458
Kind Code:
A1
Abstract:
[Problem] To provide: a fire spreading prevention unit that prevents fire spreading by reducing thermal conduction between heat sources during a rise in temperature of the heat sources, that is not easily damaged during expansion of the heat sources, and that can actively dissipate heat from the heat sources; and a battery provided with the same. [Solution] The present invention relates to a fire spreading prevention unit 1, comprising: fire spreading prevention sheets 20 each disposed so as to be sandwiched between a plurality of heat sources; and a thermally conductive member 10 disposed between the heat sources and a member to which heat from the heat sources is transmitted. The fire spreading prevention sheets 20 are multilayer sheets each obtained by laminating one or more rubber sheets 23, one or more heat resistant sheets 21, and one or more thermally conductive sheets 22. The thermally conductive sheets 22 each have a protrusion 25 that protrudes beyond the rubber sheet 23 and the heat resistant sheet 21 and has both surfaces in the thickness direction of the thermally conductive sheet 22 exposed. The fire spreading prevention sheets 20 are erected on the thermally conductive member 10 in a state in which the respective protrusions 25 are brought into contact with the thermally conductive member 10. The present invention also relates to a battery provided with the fire spreading prevention unit.
Inventors:
ANDO HITOSHI (JP)
HOSOYA SUKEMASA (JP)
HOSOYA SUKEMASA (JP)
Application Number:
PCT/JP2021/031461
Publication Date:
March 02, 2023
Filing Date:
August 27, 2021
Export Citation:
Assignee:
SHINETSU POLYMER CO (JP)
International Classes:
H01M10/647; H01M10/655; H01M10/658; H01M50/204
Domestic Patent References:
| WO2019146438A1 | 2019-08-01 |
Foreign References:
| JP2021099940A | 2021-07-01 | |||
| JP2021098308A | 2021-07-01 | |||
| JP2015090750A | 2015-05-11 | |||
| JP2020165483A | 2020-10-08 | |||
| JP2020140804A | 2020-09-03 | |||
| JP2015185535A | 2015-10-22 | |||
| JP2018206604A | 2018-12-27 |
Attorney, Agent or Firm:
MEBUKI IP LAW FIRM et al. (JP)
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