ELECTROCHEMICAL CELL PACKAGING MATERIAL

Provided is an electrochemical cell packaging material with excellent electrolyte resistance. An electrochemical cell packaging material (110) is comprised of the following in a laminated structure: a substrate layer (112) that, at a minimum, is comprised of resin film; a protective layer (111) that is arranged as the outermost layer and protects the substrate layer (112); a thermal adhesion layer (116) that is arranged as the innermost layer and which is comprised of thermal adhesion resin; and a barrier layer (114) that comprises metal foil and is arranged between the substrate layer (112) and the thermal adhesion layer (116). The protective layer (111) is formed of an epoxy resin that has bisphenol A or bisphenol F as an element in the backbone.