| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery-packaging material in which a post-molding curl is suppressed effectively.SOLUTION: A battery-packaging material comprises: a laminate having at least, a base material layer, a metal layer, and a sealant layer laminated in turn. The battery-packaging material satisfies relations given by: (A1-A2)≥60 N/15 mm and (B1-B2)≥50 N/15 mm, where A1 is a stress when stretching the laminate by 10% in MD direction, B1 is a stress when stretching by 10% in TD direction, A2 is a stress when stretching the base material layer by 10% in MD direction, and B2 is a stress when stretching by 10% in TD direction.SELECTED DRAWING: None |
