公开(公告)号：US20220328871A1

公开(公告)日：2022-10-13

申请号：US17845176

申请日：2022-06-21

Applicant: TOPPAN INC.

Inventor： Taketo NUMAZAWA ,  Tomohiko YAMAZAKI ,  Koji MURATA ,  Takuya MURAKI

IPC: H01M10/0562 ,  H01M50/183 ,  H01M50/124 ,  B32B7/12 ,  B32B15/08 ,  B32B15/20 ,  B32B27/32 ,  B32B27/36 ,  C08G18/32 ,  C09J175/06 ,  C08G18/75

Abstract: A power storage device packaging material of the present disclosure includes: a laminate at least including a substrate layer, a barrier layer, and a sealant layer, which are disposed in this order; and an adhesive layer interposed between the substrate layer and the barrier layer, the adhesive layer containing a polyurethane-based compound made of a reaction product of at least one polyester polyol resin and at least one polyfunctional isocyanate compound, wherein the polyfunctional isocyanate compound contains an isocyanurate of isophorone diisocyanate, and a content of isocyanate groups derived from the isocyanurate of isophorone diisocyanate in the polyfunctional isocyanate compound is 5 mol % to 100 mol % relative to a total amount of isocyanate groups contained in the polyfunctional isocyanate compound of 100 mol %.