US 12,148,911 B2
Heat transfer suppression sheet and battery pack
Naoki Takahashi, Ogaki (JP); and Hisashi Ando, Ogaki (JP)
Assigned to IBIDEN CO., LTD., Ogaki (JP)
Appl. No. 17/635,783
Filed by Ibiden Co., Ltd., Ogaki (JP)
PCT Filed Jul. 5, 2021, PCT No. PCT/JP2021/025377
§ 371(c)(1), (2) Date Feb. 16, 2022,
PCT Pub. No. WO2022/009851, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 2020-119429 (JP), filed on Jul. 10, 2020.
Prior Publication US 2023/0118928 A1, Apr. 20, 2023
Int. Cl. H01M 10/658 (2014.01); H01M 10/613 (2014.01)
CPC H01M 10/658 (2015.04) [H01M 10/613 (2015.04)] 20 Claims
OG exemplary drawing
 
1. A heat transfer suppression sheet comprising:
inorganic particles,
first inorganic fibers, and
second inorganic fibers,
wherein an average fiber diameter of the first inorganic fibers is larger than an average fiber diameter of the second inorganic fibers,
the first inorganic fibers have a linear shape or a needle shape, and
the second inorganic fibers have a dendritic shape or a crimped shape.