| abstract |
The present invention pertains to: an exterior material for a power storage device, said material being provided with at least a substrate layer, an adhesive layer, a metal foil layer, and a sealant layer, the sealant layer containing an inorganic filler, the proportion occupied by the inorganic filler in relation to the total thickness of the sealant layer in a cross-section along the lamination direction being 5-50%; or an exterior material for a power storage device, said material being provided with a substrate layer, a barrier layer, and a sealant layer in the stated order, the barrier layer comprising a metal foil, the barrier layer having an anti-corrosion treatment layer on at least the sealant layer side, the sealant layer being directly formed on the anti-corrosion treatment layer, the thickness of the sealant layer being 5-30 μm, and the sealant layer containing a high-melting-point substance. |