| abstract |
This electrical storage device outer-package material has a structure in which at least: a base material layer; a first adhesive layer; a metal foil layer having a corrosion prevention treated layer provided on either or both surfaces thereof; a second adhesive layer or an adhesive resin layer; and a sealant layer, are laminated in this order, wherein the sealant layer includes a layer formed by a resin composition containing (A) 60 to 95 mass% of a propylene-ethylene random copolymer and (B) 5 to 40 mass% of a polyolefin-based elastomer including 1-butene as a comonomer and having a melting point of 150°C or lower. |