Toppan Printing Co., Ltd.

Hiroshi Dai

Masayoshi Suzuta

Yu Ogihara

Junya Imamoto

Yuki Muroi

Packaging material for a power storage device, comprising at least a substrate layer, an adhesive layer, a metal foil layer and a sealant layer wherein the sealant layer contains an inorganic filler and an occupying ratio of the inorganic filler relative to the total thickness of the sealant layer is 5 to 50%, and also to a packaging material for a power storage device, comprising a substrate layer, a barrier layer and also to a packaging material for power storage device, which comprises a substrate layer, a barrier layer and a sealant layer arranged in this order wherein the barrier layer is made of a metal foil and has a corrosion inhibition treatment layer at least at a side of the sealant layer, and the sealant layer is formed directly on the corrosion inhibition layer, has a thickness of 5 to 30 &#x3bc;m, and contains a high melting point material.

Packaging material for power storage device

A packaging material for a power storage device, the packaging material including, in order from a first surface of a metal foil, a first corrosion protection layer and a coating layer, and, in order from a second surface of the metal foil, a second corrosion protection layer, an adhesive layer, and a sealant layer. In the packaging material, the coating layer contains at least one selected from a group consisting of fluorine resins and amorphous polyester resins.

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Tokyo, Japan

Hiroshi Dai