| abstract |
A cell device (50) comprises a cell case (51) made of a sheet (10) for cell cases, a cell (50a) housed in the cell case (51), and tabs (59, 60) projecting from the cell case (51). The sheet (10) comprises a first base film layer (1a), a metal foil layer (2), and a thermally adhesive resin layer (3) formed in order of mention from the outside. The first base film layer (1a) is made of a biaxially oriented polyethylene terephthalate film or a biaxially oriented nylon film. The metal foil layer (2) is made of an aluminum or copper film. The thermally adhesive resin layer (3) is made of polyolefin resin, especially of acid-modified polyolefin resin. |