US 11,837,750 B2
Lithium ion battery using crosslinkable separator
Xun Zhang, Tokyo (JP); Ryo Kuroki, Tokyo (JP); Yuki Fukunaga, Tokyo (JP); Hiromi Kobayashi, Tokyo (JP); and Mitsuko Saito, Tokyo (JP)
Assigned to Asahi Kasei Kabushiki Kaisha, Tokyo (JP)
Filed by Asahi Kasei Kabushiki Kaisha, Tokyo (JP)
Filed on Oct. 17, 2022, as Appl. No. 17/966,990.
Application 17/966,990 is a continuation of application No. 16/957,421, previously published as PCT/JP2019/040343, filed on Oct. 11, 2019.
Claims priority of application No. 2018-192975 (JP), filed on Oct. 11, 2018; application No. 2018-192978 (JP), filed on Oct. 11, 2018; application No. 2018-206944 (JP), filed on Nov. 1, 2018; application No. 2019-082084 (JP), filed on Apr. 23, 2019; application No. 2019-141211 (JP), filed on Jul. 31, 2019; and application No. 2019-141513 (JP), filed on Jul. 31, 2019.
Prior Publication US 2023/0120715 A1, Apr. 20, 2023
Int. Cl. H01M 4/02 (2006.01); H01M 50/446 (2021.01); C08J 3/24 (2006.01); H01M 10/0568 (2010.01); H01M 50/403 (2021.01); H01M 50/494 (2021.01); H01M 50/491 (2021.01); H01M 50/417 (2021.01); H01M 50/406 (2021.01); H01M 50/489 (2021.01)
CPC H01M 50/446 (2021.01) [C08J 3/24 (2013.01); H01M 10/0568 (2013.01); H01M 50/403 (2021.01); H01M 50/406 (2021.01); H01M 50/417 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 50/494 (2021.01)] 19 Claims
OG exemplary drawing
 
19. A separator for an electricity storage device comprising 5 to 40 weight % of a silane-modified polyolefin and 60 to 95 weight % of a polyolefin other than the silane-modified polyolefin, wherein the transition temperature is 135° C. to 150° C. for the rubber plateau and the crystal melt flow region, in the temperature-dependent change of the storage modulus of the separator for an electricity storage device.