公开(公告)号：US12018189B2

公开(公告)日：2024-06-25

申请号：US17428823

申请日：2020-03-16

Applicant: SHOWA DENKO K.K.

Inventor： Kazuhiko Oga ,  Takeshi Kawamoto ,  Kai Suzuki ,  Ryunosuke Yamamoto

IPC: C09J7/29 ,  B32B7/12 ,  B32B15/085 ,  B32B15/20 ,  B32B27/32 ,  C09J7/38 ,  H01M50/197

CPC classification number: C09J7/29 ,  B32B7/12 ,  B32B15/085 ,  B32B15/20 ,  B32B27/32 ,  C09J7/38 ,  H01M50/197 ,  B32B2255/06 ,  B32B2255/26 ,  B32B2457/10 ,  C09J2203/33 ,  C09J2301/16 ,  C09J2400/163 ,  C09J2475/00

Abstract: Provided are an outer package material that is for electricity storage devices such as batteries and has such a sufficient anti-electrolytic solution property that the time-dependent reduction of the adhesive strength between a metal foil layer and a sealant layer by an electrolytic solution is suppressed over a long time and a composition for adhesives for giving the outer package material. In an outer package material that is for electricity storage devices and has a structure in which at least a base material layer, a first adhesive layer, a metal foil layer, a second adhesive layer, and a sealant layer are stacked in sequence, a composition containing an isocyanato group and a (meth) acryloyl group and further containing an acid-modified polyolefin (component 1), an active energy ray polymerization initiator (component 3), and a solvent (component 4) is used as a composition for adhesives to form the second adhesive layer.