| abstract |
The present invention provides a battery packaging material comprising a laminate in which at least a base material layer, a metal layer, and a sealing layer are laminated in this order, the total thickness is thin, and the moldability and puncture strength are excellent. The battery packaging material includes a laminated body in which at least a substrate layer, a metal layer, and a sealing layer are laminated in sequence, the total thickness of the laminated body is in the range of 50 to 80 μm, and the thickness of the substrate layer and the metal layer is The ratio with respect to the total thickness of the said laminated body exists in the range of 0.380-0.630. |