Battery packaging material
AssigneeResonac Packaging Corporation
InventorsYuuji MINAMIBORI, Makoto KARATSU
Life of this patent
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Abstract
Provided is a battery packaging material in which the seal strength gradually decreases as the temperature rises, resulting in a gradual unsealing. The battery packaging material is composed of a substrate layer 13 served as an outer layer, a sealant layer 20A served as an inner layer, and a barrier layer 11 arranged between these two layers. The sealant layer 20A is composed of one or more layers. A first sealant layer 21 served as the innermost layer is made of a resin blend containing a polyolefin resin A having a melting point of 120° C. or above and a polyolefin resin B having a melting point of less than 120° C.
Claims12
A battery packaging material comprising:
- a substrate layer served as an outer layer;
- a sealant layer served as an inner layer;
- a barrier layer arranged between the substrate layer and the sealant layer,
- wherein the sealant layer is composed of one or more layers, and
- wherein a first sealant layer served as an innermost layer is made of a resin blend containing a polyolefin resin A having a melting point of 120° C. or above and a polyolefin resin B having a melting point of less than 120° C.
Dependencies are inferred from the claim text.