| 摘要 |
PROBLEM TO BE SOLVED: To improve the performance of a rolled type electrode plate unit and lessen the inner pressure by increasing the inner space of a battery can by the rolled type electrode plate unit with a jelly roll type structure. SOLUTION: In a rolled type electrode plate unit comprising a cathode plate 13, a cathode terminal, an anode plate 15, an anode terminal, a separator 17 installed between the cathode plate 13 and an anode plate 15, and an electrolytic substance and produced by rolling the cathode 13, the anode 15, and the separator 17, the separator 17 is formed by cutting the overlapping parts of the separator 17 in the center part of rolling. |
