Patent ID: 8323827

Claim:
A laminated external packaging material for a battery, comprising: a base film having a first surface and a second surface opposite to the first surface; a metallic foil adhered to the first surface of the base film; and a coated film layer formed on the second surface of the base film, wherein the coated film layer comprises a thermal adhesive resin having a softening point of 160° C. or below and capable of thermally bonding to a surface film of a battery main body such that the laminated external packaging material is wrapped around the battery main body with the coated film layer in contact with the battery main body and thermally bonded thereto, the base film comprises a thermoplastic resin capable of thermally bonding to an end portion reinforcing plastic component of a laminate battery, and the coated film layer is formed to have a thickness of 0.5 to 10 μm such that a portion of the coated film layer subjected to thermal pressure bonding is removed upon the base film being thermally bonded to the end portion reinforcing plastic component.