| 摘要 |
PURPOSE:To achieve a tubular or a rectangular air electrode having high mechanical strength, liquid tightness and the excellent liquid-proof performance, bybending or folding a pressure contacted three-layer structure then welding and jointing the current collector layer at the heavy portion while mending the defective portion at the joint with perphloro-alkoxy resin. CONSTITUTION:It is made of a three layer structure sheet of a water repellent layer, porous catalytic layer and a current collecting layer laminated and pressed in thid order, where said sheet is bent or folded such that the current collecting layer will come to the inside while the water repellent layer will come to the outside then a portion of both ends of th sheet is ovelapped to produce a cylinder. Thereafter the exposed current collecting layer except a portion of the water repellent layer and the porous catalytic layer at the overlapped section is welded by a welder. Then a fluororesin is filled at the defective section not at the liquid-tight state thus to mend luquid-tightly. Perphloro-alkoxy resin is preferable as the fluororesin then the filled section is heated to the fusing temperature of the resin and cooled as it is to be secured. |
