US 11,990,629 B2
Casing material for power storage device, production method therefor, and power storage device
Daisuke Yasuda, Tokyo (JP); and Takanori Yamashita, Tokyo (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Appl. No. 17/287,193
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
PCT Filed Oct. 24, 2019, PCT No. PCT/JP2019/041797
§ 371(c)(1), (2) Date Apr. 21, 2021,
PCT Pub. No. WO2020/085462, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 2018-200441 (JP), filed on Oct. 24, 2018.
Prior Publication US 2022/0013306 A1, Jan. 13, 2022
Int. Cl. H01M 50/124 (2021.01); H01G 11/30 (2013.01); H01G 11/82 (2013.01)
CPC H01M 50/1243 (2021.01) [H01G 11/30 (2013.01); H01G 11/82 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A power storage device outer packaging material which comprises a laminate including at least a base material layer, a barrier layer and a heat-sealable resin layer in this order, wherein the heat-sealable resin layer includes a single layer or multiple layers, and a first heat-sealable resin layer of the heat-sealable resin layer, which forms a surface of the laminate, has a logarithmic decrement ΔE of 0.20 or less at 140° C. in a rigid pendulum measurement.