| 摘要 |
PURPOSE:To provide a positive plate for a lead-acid battery having a long life, a high formability, and a high initial capacity by controlling the product quantity of tetrabasic lead sulfate. CONSTITUTION:Water and sulfuric acid, having a specific gravity of 1.260 (value at 20 deg.C), are added to lead powder of an oxidation degree of 80% manufactured with a ball mill lead powder manufacturing machine, to make paste. An additive, composed of a given quantity of fibrous lead, is added to the paste to be stirred for 5 minutes. Such paste containing the additive is charged in a grid body to provide positive a plate. This positive plate is placed in an atmosphere of high temperature and humidity, to be aged for 16 hours in an atmosphere at a temperature of 80 deg.C and a humidity of 95%, and then is dried at 100 deg.C for 6 hours to provide the positive plate. |
