| 摘要 |
PURPOSE:To generate the active material in a short time, and to improve the utilization factor of the positive electrode active material, and to obtain a lightweight lead-acid battery having a high output by using a fluidization tank to electrically deposit lead dioxide onto the surface of the conductive fibers. CONSTITUTION:A fluidization tank 1 is filled with the solution of lead nitrate and nitric acid, and electric deposit is performed to the conductive fibers, which are obtained by performing the electroless plating to coat the carbon fibers or glass fibers with lead, at a constant current. At this stage, as a collector 3 for holding the fibers in the tank and as a reference electrode 4, platinum wire is used, and the electrolyte is fed from a liquid inlet 5 to a liquid outlet 6, and the electrolyte is agitated by an agitating bar 7 for circulation. Thereafter, a predetermined quantity of the binder made of tetrafluoroethylene is added to the fibers, on which surface lead dioxide is electrically deposited, and the fibers are pressed onto a sheet made of Pb-Ca-Sn alloy to obtain a positive electrode plate. |
