SEPARATOR FOR SEALED LEAD-ACID BATTERY AND ITS MANUFACTURE AND SEALED LEAD-ACID BATTERY

摘要

PURPOSE:To produce a separator which can retain increased amount of an electrolytic solution and has improved high discharge efficiency for a lead-acid battery by throwing small pieces of entangled glass short fibers in water, dispersing them, and forming into a sheet. CONSTITUTION:Entangled, alkali-resistant silicate glass short fibers are adjusted to be 3-10mm fiber length and thrown to water. Then, they are dispersed in the water by a dispersing and mixing apparatus without being loosened by a heater and formed into a paper by a paper machine. As a result, a paper-like separator with 9-15% tensile expansion and 0.11-0.14g/cm3 density is obtained, battery capacity and discharge characteristics are increased, electrolytic solution is uniformly retained, a layer formation ratio preventive effect is produced, and then a sealed lead-acid battery separator prolonging the battery life is manufactured.