| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate for a nonaqueous battery exterior package, which enables the increase in the production efficiency of a nonaqueous battery by increasing the mechanical strength of the same, and preventing the occurrence of a failure in drawing.SOLUTION: Provided is a laminate 10 for a battery exterior package. The laminate comprises a base material layer 11, SUS foil 12, and a sealant layer 13 composed of a multilayer including a polyolefin-based resin, which are laminated in this order. The laminate further comprises a surface-covering layer 17 formed on the SUS foil 12 at least on the side of the sealant layer 13, the surface-covering layer 17 having a thickness of 0.05-1.0 μm, and being obtained by drying and curing a water-soluble coating material containing a water-soluble resin, a metal fluoride compound and an organic chelating agent. The sealant layer 13 has, on the side of an interface with the SUS foil 12, a heat adhesive polyolefin resin layer including at least one kind of resin selected from a resin group consisting of a maleic anhydride-modified polyolefin resin, an alloy material of a resin having an epoxy group and a polyolefin resin, and an alloy material of a resin having an oxazoline group and a polyolefin resin.SELECTED DRAWING: Figure 1 |
