| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode capable of reducing the internal short- circuiting by arranging a sheet type electrode made of a sheet type metallic foil current collector coated with an electrode binder, a lead to be connected to the exposed part of the current collector and an insulation tape positioned in such a state as clamped with the current collector and the lead. SOLUTION: The center part of a positive electrode lead 8 is covered with an insulation tape 21 and, then, the exposed lower end 8a of the positive electrode lead 8 is welded to a positive electrode 3. Also, the exposed upper end 8b of the positive electrode lead 8 is welded to an explosion-proof valve body 9. Then, the flexible part 8c of the positive electrode lead 8 is bent, and a sealing body is coupled to a battery can. Furthermore, the insulation tape 21 is attached to the center part of the positive electrode lead 8 except for the lower end 8a and the upper end 8b thereof, and the positive electrode lead 8 is covered with the insulation tape 21 except for a connected part 8a with the positive electrode 3 and a connected part 8b with the explosion-proof valve body 9. Also, the insulation tape 21 has such a part as positioned in such a state as clamped with the positive electrode 3 and the positive electrode lead 8. |
