| 摘要 |
PURPOSE:To make the improvement of liquid leak-proof and the prevention of self discharge, with the electrolyte prevented from intruding into the inside of cell can at the cathode side, by fixing the insulation layer of cathode compound and the peripheral edge part of separator with a welding portion. CONSTITUTION:In a cathode side cell can 8, with a cathode terminal 9 unified to be constructed through a glass unit 10, are placed an insulating sheet 11 and a current collector unit 12, with a welding processed between the cathode terminal 9 and the current collector unit 12. On top of this, are placed a cathode compound 4 and an impregnation material 5, with the electrolyte impregnated, and an anode compound 2, with its cathode compound 4-side face and lateral face wrapped by a separator 6 to the peripheral edge part of which an alkaline-resistant bonding agent 14 is previously applied, is inserted. Subsequently, an anode side cell can 13, having a shape of 13a with a thickness of its peripheral edge part being thicker than any other part, is placed, and a cell edge peripheral part 8a, 13a is welded. At this time, a peripheral edge part of the insulating sheet 11 and the separator 6 is fixed by a level difference portion 13b of the anode side cell can 13 and a contracted portion 8b of the cathode side cell can 8. |
