| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery and a battery pack structured so that control is easy when thermally fusing a seal part, the seal part is thermally fused with excellent adhesive strength and sealing performance, and a short-circuit between a metal layer and a lead conductor is prevented from being caused when thermally fusing the seal part. SOLUTION: A laminate film 41 includes a structure in which an outer layer resin film 41a, metal foil 41b, and an inner layer resin film 41c for fusion are laminated in this order toward an battery element 4 side from the outside. The inner layer resin film 41c for fusion contains a thermal fusible resin and fine resin fibers. COPYRIGHT: (C)2010,JPO&INPIT |
