| 摘要 |
PURPOSE:To enhance the coefficient of utilization of an entire electrode plate and improve the discharge characteristic, capacity and life thereof, by sandwiching a nonwoven fabric made of carbon fibers and holding an electrolytic solution, between lattices, and by integrating the lobes of the lattices with each other, and causing an active material to be held by a base body having a three-layer construction consisting of the lattice, the nonwoven fabric and the other lattice. CONSTITUTION:To compose a three-layer base body of a lattice 1, a nonwoven fabric 2 of carbon fibers and another lattice 1, the nonwoven fabric is interposed between the lattices and the lobes of the lattices are integrated with each other by arc welding. After a paste is filled in both the sides of the base body and dried, they are subjected to a conventional formation process so that a cathode plate is manufactured. An enclosed lead storage battery is made of the cathode plate and two conventional anode plates. Since an electrolytic solution of sulfuric acid is supplied from outside the cathode plate and from the nonwoven fabric in the center of the three-layer base body, the utilization of the central portion of the cathode plate is enhanced so that the entire cathode plate is uniformly utilized. |
