Battery outer packaging material, method for manufacturing battery outer packaging material, and battery

摘要

A battery outer packaging material having flexibility, in which a plurality of films are laminated, wherein a heat-weldable film and a plurality of gas barrier films laminated and arranged on one surface side of the heat-weldable film And a plurality of adhesive layers disposed between the plurality of films, the gas barrier film is a resin base material, and is disposed on one or both sides of the resin base material, a gas barrier containing an inorganic substance. A battery outer packaging material having a membrane, wherein at least the adhesive layer disposed between the heat-weldable film and the gas barrier film among the plurality of adhesive layers has electrolytic solution resistance. .