| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery having excellent insulation quality and moisture barrier property.SOLUTION: A battery element including at least a positive electrode, a separator, a negative electrode and electrolyte, and an electrode lead wire having one end connected to the battery element are covered with an insulating resin layer, and a resin base material and an aluminum foil are laminated on the above resultant to form a battery jacket material. A battery is coated by the thus-obtained battery jacket material. Two battery jacket materials are prepared and arranged so that the aluminum foil face sides thereof face each other, and the aluminum foils at the peripheral end portions are welded and sealed.SELECTED DRAWING: Figure 3 |
