| abstract |
A battery packaging material having excellent insulating properties is provided. [Solution] It consists of a laminate comprising at least a base material layer, a metal layer, an adhesive layer, and a heat-fusible resin layer in this order, The adhesive layer is a battery packaging material having a logarithmic decay rate ΔE1 at 80 ° C. in a rigid pendulum measurement of 0.08 or less. [Selection figure] None |