SEALED LEAD-STORAGE BATTERY

摘要

PURPOSE:To obtain a sealed lead-storage battery whose discharge performance is remarkably increased by impregnating and holding an electrolyte in a separator made of fine glass fibers and granules of fine silica particles filled around a plate group. CONSTITUTION:A plate group comprising a positive plate, a negative plate, and a separator having high porosity and large surface area, made of fine glass fibers is put in a container by applying pressure. Porous granules prepared with 10-40mum fine silica particles and a binder are filled around the plate group. The amount of sulfuric acid electrolyte necessary and enough for charge- discharge is impregnated and held in the separator and the granules. By tilling the granules around the plate group, larger amount of electrolyte than a retainer type battery is held and specific gravity of the electrolyte is heightened than a gelled type battery. Low rate and high rate discharge performance is increased.