公开(公告)号：US20230125870A1

公开(公告)日：2023-04-27

申请号：US17974464

申请日：2022-10-26

Applicant: SHOWA DENKO PACKAGING CO., LTD.

Inventor： Naoya KODA

IPC: H01M50/126 ,  H01M50/133 ,  H01M50/14 ,  B32B15/085

Abstract: A battery packaging material is formed of a laminate. The laminate is composed of an outer layer including a substrate layer, a barrier layer as an intermediate layer, and a heat fusible resin layer as an innermost layer. The total thickness of the laminate is 60 μm to 220 μm. The barrier layer is formed of a metal foil. The product of a stress value and a thickness of the heat fusible resin layer at a time of 10% stretching is 1,200 Pa·m or more.