Toppan Printing Co., Ltd.

Naoto Oono

Koji Murata

Tomoaki Taniguchi

Kazuki Nishijima

A packaging material for a power storage device includes a base material layer which has at least a first adhesive layer, a metal foil layer, a corrosion prevention-treated layer, a second adhesive layer, and a sealant layer, sequentially laminated on the side of the first surface thereof; and a base material protective layer formed from at least one selected from the group consisting of a polyester polyol and an acrylic polyol, each containing a group having a hydroxyl group in a side chain thereof, and an aliphatic isocyanate curing agent, laminated on the side of the second surface of in the base material layer.

Packaging material for power storage device

A packaging material for a power storage device of the present invention includes: a base layer having a first surface and a second surface, the first surface having at least a first adhesive layer, a metal foil layer, an anticorrosive treatment layer, a second adhesive layer, and a sealant layer laminated thereon in this order; and a base protective layer laminated on the second surface of the base layer, and formed containing at least one base resin selected from a group consisting of a polyester polyol and an acrylic polyol, each of which has a group having a hydroxyl group on a side chain, and a curing agent containing at least one of a biuret type and an isocyanurate type of isocyanate.

A power storage device packaging material includes: a base material layer; a metal foil layer formed on one surface of the base material layer via an adhesive layer; and a sealant layer arranged on a surface of the metal foil layer, the surface of the metal foil layer being on the opposite side to the base material layer, wherein the base material layer contains a polyester resin that contains a polyester elastomer and/or an amorphous polyester.

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Tokyo, Japan

Naoto Oono