An outer covering material for a power storage device includes a base material layer, a barrier layer including a metal foil layer, and a thermally fusible resin layer in this order. The outer covering material for a power storage device comprises a lubric...

An electrode catalyst layer that is used in a polymer electrolyte fuel cell comprises: a catalyst material; a conductive carrier that supports the catalyst material; a polymer electrolyte; and a fibrous material containing nitrogen atoms. The ratio of the ...

A power storage device packaging material at least includes a substrate layer, a barrier layer including a metal layer, an adhesive layer, and a sealant layer in this order. The adhesive layer contains a hydrophobic insulating inorganic filler. The content...