PACKING FILM FOR BATTERY PACK AND BATTERY PACK EMPLOYED WITH THE SAME

摘要

A packing film is provided to perform the labeling of a pack case by using an easy method in laser printing, and to increase the battery capacity by reducing the thickeness. A packing film(100) comprises a transparency polymer resin layer(110) with high tensile strength and weather resistance as an outermost layer; a polymer resin layer(130) for shielding the inside as a material of a packing film; a colored coating layer(160) for displaying the information; and an adhesive layer(140) stuck to a pack case as an inner-most layer. The polymer resin layer for shielding exposes the site of the colored coating layer via the transparency polymer resin layer by transforming the irradiated site in radiating the laser light into a visible light-permeable type.