| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin battery capable of minimizing the lowering of sealing force during the period of storing a battery (particularly at the high temperature storage) and preventing the increase of the battery manufacturing cost and preventing the solution leakage, leap of the generating elements from the battery and damage to the external equipment when the battery is dropped. SOLUTION: The thin battery specifies that a positive electrode and a negative electrode are provided with a generating elements 4 wound flat spiral by a separator and that the generating element 4 is accommodated in the laminated armor 1 produced by the thermal deposition of a laminated material in which the internal resin layer 1c and external resin layer 1b are coated on both side of aluminum layer 1c respectively. The aluminum laminated material is thermally fused in the state that the gas releasing valve 5 having a smaller width than the generating element 4 and consisting of a resin having a lower melting point than the internal resin layer 1c, is caught between the internal resin layers 1c. |
