脉冲充电对铅酸蓄电池硫酸盐化的影响

Effect of pulse charge on sulphation of lead-acid battery

设计了一种消除铅酸蓄电池硫酸盐化故障的脉冲充电实验方法 ,其脉冲电流的大小和周期介于正常电池的脉冲充电法和传统的消除硫酸盐化的反复充放电法之间 ,并用该法与传统方法进行对照实验。实验结果表明 ,脉冲充电法充入的电量仅为传统方法的 42 % ,但各个单体电池的电解液密度上升幅度平均为传统方法的 83 %。证明了脉冲充电法比传统方法能更有效地消除硫酸盐化 ,并由此推断出用脉冲充电法对正常电池进行恢复性充电 ,能起到防止硫酸盐化的作用 。

An experimental method of pulse charge is designed to eliminate the sulphation of lead acid battery. The magnitude and period of the pulse current was between that of the pulse charge method for normal battery and the traditional repeated charge/discharge method for the sulphated battery. The results of the contrastive experiment between the traditional and the new method show that although the total charge capacity obtained by the later method is only 42% as that obtained by the former, the average increase value of electrolyte density of each single cell is 83% as that obtained by the traditional method. That means, the pulse charge method can eliminate sulphation more effectively than traditional method. Therefore, the recovering charge for normal battery by pulse charge method is concluded to inhibit sulphation and increase cycle life of lead acid battery.