Casing material for power storage device, production method therefor, and power storage device
AssigneeDai Nippon Printing Co., Ltd.
InventorsDaisuke YASUDA, Takanori YAMASHITA
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Abstract
A casing material for a power storage device, comprising a laminate that comprises, in order, at least a base material layer, a barrier layer, and a heat-fusible resin layer. The heat-fusible resin layer comprises a single layer or a plurality of layers. A first heat-fusible resin layer, among the heat-fusible resin layers, that constitutes the surface of the laminate has a logarithmic decrement ΔE of no more than 0.20 in a rigid body pendulum measurement at 140° C.
Claims13
A power storage device outer packaging material which comprises a laminate including at least a base material layer, a barrier layer and a heat-sealable resin layer in this order, wherein the heat-sealable resin layer includes a single layer or multiple layers, and a first heat-sealable resin layer of the heat-sealable resin layer, which forms a surface of the laminate, has a logarithmic decrement ΔE of 0.20 or less at 140° C. in a rigid pendulum measurement.
A method for producing a power storage device outer packaging material, comprising the step of laminating at least a base material layer, a barrier layer and a heat-sealable resin layer in this order, wherein the heat-sealable resin layer includes a single layer or multiple layers, and a first heat-sealable resin layer of the heat-sealable resin layer, which forms a surface of the laminate, has a logarithmic decrement ΔE of 0.20 or less at 140° C. in rigid pendulum measurement.
Dependencies are inferred from the claim text.