Laminate-type power storage element and card electronic device

A laminate-type power storage element, comprising:

• an exterior body that is formed in a flat bag shape by welding a first laminated film and a second laminated film by thermocompression bonding;
• and
• an electrode body that is sealed inside the exterior body, the electrode body having a sheet-shaped positive electrode and a sheet-shaped negative electrode, wherein
• the first laminated film and the second laminated film each includes
• a first resin layer that has a property of transmitting a laser beam,
• a metal foil that is layered to the first resin layer, and
• a second resin layer that is layered to the metal foil and has a thermal weldability,
• the exterior body is configured such that the second resin layer of the first laminated film opposes the second resin layer of the second laminated film,
• a label is formed in a surface of the metal foil facing the first resin layer of at least on of the first laminated film or the second laminated film by laser marking without altering the first resin layer of the first laminated film or the second laminated film by the laser beam, and
• the label is formed at a region where the first laminated film and the second laminated film are welded.