US 12,472,723 B2
Casing material for power storage device, production method therefor, and power storage device
Daisuke Yasuda, Tokyo (JP); Makoto Amano, Tokyo (JP); and Takanori Yamashita, Tokyo (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed on Jul. 11, 2024, as Appl. No. 18/770,036.
Application 18/770,036 is a continuation of application No. 17/287,216, granted, now 12,064,951, previously published as PCT/JP2019/041798, filed on Oct. 24, 2019.
Claims priority of application No. 2018-200444 (JP), filed on Oct. 24, 2018.
Prior Publication US 2024/0399709 A1, Dec. 5, 2024
Int. Cl. B32B 7/12 (2006.01); B32B 27/08 (2006.01)
CPC B32B 7/12 (2013.01) [B32B 27/08 (2013.01); B32B 2307/31 (2013.01); B32B 2307/7265 (2013.01); B32B 2457/10 (2013.01)] 28 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,
the heat-sealable resin layer comprising a resin containing a polyolefin backbone,
the heat-sealable resin layer including a single layer or multiple layers,
the heat-sealable resin layer including at least one layer having a hardness of 70 MPa or more as measured from a cross-section in a lamination direction of the laminate under a load of indentation of 100 μN in a nanoindentation method.