| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate film for battery outer packaging which is high in seal strength and inter-layer bonding strength, superior in heat resistance, electrolyte resistance, and adhesiveness with a tab-seal layer and less in load on an environment, and which can be manufactured inexpensively.SOLUTION: A laminate film 10 for battery outer packaging comprises at least a base material layer 1, a first adhesion layer 2, a barrier layer 3, a second adhesion layer 4 and a sealant layer 5 which are laminated in this order. The sealant layer 5 has at least one (I) layer formed by a blend arranged by mixing polyethylene of a density of 0.930-0.950 g/cmand manufactured by use of a metallocene-based catalyst with a polypropylene-based elastomer including a polypropylene matrix and rubber dispersed in the polypropylene matrix.SELECTED DRAWING: Figure 1 |
