| 摘要 |
PURPOSE:To prevent electrolytic solution from bedding during charging or discharging, by making dilute sulfuric acid electrolytic solution which is gelatinized with silica particles having specific diameters to be maintained in a group of electrode plates comprising a separating body mainly composed of glass fiber, a positive electrode plate, and a negative electrode plate. CONSTITUTION:A separator mainly composed of glass fiber having an average diameter less than 5mum, a positive electrode plate, and a negative electrode plate are combined together to form a group of electrode plates. Then it is made to uniformly absorb and keep dilute sulfuric acid electrolytic solution which is gelatinized with 1-7wt% of silica particles having diameters less than 100mum and is half fixed, thereby forming a closed type lead storage battery of the negative electrode absorbing type. And during charging or discharging, the dilute sulfuric acid electrolytic solution is prevented from bedding by sufficiently supplementing the dilute sulfuric acid electrolytic solution with the glass fibers and silica particles having very small diameters. Therefore, stable performance can be obtained by prevention of capacity decrease even if long electrode plates are used for a large capacity closed type lead storage battery. |
