| 摘要 |
PURPOSE:To apply the adequate viscosity to an electrolyte and prevent the stratification of the electrolyte by adding silica fine grains to the electrolyte. CONSTITUTION:A dilute sulfuric acid electrolyte dispersed with 3-6wt.% of silica grains with the grain size of 5-100mmu is absorbed and held in an electrode plate group. If silica fine grains with the grain size of 5mmu or less are dispersed, the viscosity is made too high, the movement of sulfuric acid to the electrode plate is impaired, thus the capacity is decreased as compared with a battery not containing silica. If silica fine grains with the grain size of 100mmu or more are dispersed, the force to impair the flow down of sulfuric acid with high specific gravity is weak, thus the stratification of the electrolyte can not be prevented, and the discharge capacity is reduced. |
