| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for a battery-packaging material including a film-like laminate arranged by laminating at least a base layer, an adhesion layer, a metal layer and a sealant layer in turn, which enables the further increase in the resistance against an electrolyte because of the base layer arranged to include a polyester film, but is hard to form no crack nor pin hole when shaping the base layer including a polyester film, and which brings about superior formability. ! SOLUTION: A battery-packaging material comprises a laminate arranged by laminating at least, a base layer, an adhesion layer, a metal layer and a sealant layer in turn. The base layer includes a polyester film. The metal layer is composed of a piece of aluminum foil which exhibits a 0.2%-bearing force of 55-140 N/mm2 in a tensile test performed in a direction in parallel with a direction of rolling. ! COPYRIGHT: (C)2015,JPO&INPIT |
