| abstract |
(57) [Summary] [Problem] To reduce the thickness and weight of a secondary battery. SOLUTION: A thin battery comprising a battery element formed by sequentially laminating a positive electrode layer, an electrolyte layer, and a negative electrode layer with a laminate formed by laminating at least a metal layer and an adhesive resin layer. A secondary battery, comprising a plurality of battery elements, wherein at least one side of the laminate is a continuous one. A thin secondary battery composed of a single sheet. |