CONTROL VALVE TYPE LEAD ACID STORAGE BATTERY

A control valve type lead acid storage battery is provided with: a positive electrode plate which comprises a collector and a positive electrode material that is supported by the collector; a negativeelectrode plate; and a separator which is arranged between the positive electrode plate and the negative electrode plate, and which is configured from glass fibers. The compression ratio of the separator is from 1.2 to 1.8 (inclusive). The total pore volume per unit mass of the positive electrode material is 0.150 cm /g or less. The positive electrode material contains fibers; and the average specific surface area of the fibers as determined by a BET method that uses a krypton gas as the adsorption gas is 0.20 m /g or more. 一种阀控式铅蓄电池，具备：具有集电体和被集电体支承的正极材料的正极板；负极板；以及，配置于正极板与负极板之间且由玻璃纤维构成的隔离件。隔离件的压缩比为1.2～1.8。正极材料的每单位质量的细孔总容积为0.150cm/g以下。正极材料含有纤维，基于使用氪气作为吸附气体的BET法的纤维的平均比表面积为0.20m/g以上。