| 摘要 |
PURPOSE:To improve the storing characteristic of cell by providing ethylene-acryl acid salt copolymer resin layer on the contacting face with anode layer of celophane film constituting the separator layer between anode agent layer and cathode layer. CONSTITUTION:Water solution of ethylene-acryl acid salt copolymer resin is coated with dried depth of 40-100mu on at least anode agent layer 4 side of celophane film 1 constituting the separator layer, then it heated through roller to provide integrally laminated film 2. Said film 2 improves the acid-resistance of celophane film 1 thus prevent the inner shortcircuit of cell and the deterioration of cell characteristic resulting in the improvement of storing characteristic of cell. |
