ADHESIVE FILM FOR SEALING LITHIUM BATTERY METALLIC TERMINAL PART

摘要

PROBLEM TO BE SOLVED: To provide an adhesive film for sealing a lithium battery metallic terminal part capable of sealing in a stable state by preventing short circuit between a barrier layer made of a metallic foil of a packaging for a lithium battery and a metallic terminal projecting from a lithium battery body.

SOLUTION: The adhesive film for sealing the lithium battery metallic terminal part is interposed between an inner layer of a peripheral heat bonding part and the metallic terminal of the packaging including at least polyolefin resin having heat bonding property and the barrier layer made of metallic foil in the inner layer in which metallic terminals connected to a positive electrode and a negative electrode respectively are projected to the outside and sealed in the peripheral heat bonding part, and the adhesive film 1 for sealing the lithium battery metallic terminal part has polyolefin layers 4 on both surfaces of a biaxially oriented polyethylenenaphthalate film 2, and at least one of the polyolefin layers is an acid modified polyolefin layer.

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