| 摘要 |
PURPOSE: To provide a sealed lead acid battery excellent in a low temperature high efficient discharge characteristic and in life performance, by using a storage battery use separator of solidifying a paper making unit, composed of silica pelletized with water-contained non-crystal silicon oxide and fine glass fiber, by a resin binder. CONSTITUTION: A constitutional material of a separator uses silica of aiming holding a dilute sulfuric acid electrolyte and preventing thickness deforming the separator, fine glass fiber for improving porosity and wettability and for reducing electric resistance and thick glass fiber for reducing a cost. In fixed compound ratio of these members, wet paper making technique is utilized to prepare 16 kinds of separators by trial experiment. As a result, water-contained non-crystal silicon oxide is pelletized, to use a paper making unit of 20 to 90wt.% silica of 30μm to 200μm grain size, 10 to 50wt.% fine glass fiber of less than 1μm mean fiber size and 30wt.% or less thick glass fiber of 4 to 30μm mean fiber size. A separator of solidifying this paper making unit by a resin binder in used to obtain a sealed lead acid battery.
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