MH-Ni电池组并联充电的研究

介绍了采用恒流并联充电法对MH—Ni电池组充电的实验过程和结果。实验结果表明：并联充电过程中各支路电池的充电电流是按电池的荷电态来分配的，荷电态高的电池分配的电流小，荷电态低的电池分配的电流大。随着充电的进行，各支路电流的差值逐渐减小，最终，电流趋于一致，完成充电过程。并联充电使各支路电池的荷电态差值减小，提高了电池组中电池的均匀性，延长了电池组的循环寿命。

Study on charging in parallel of Ni-MH batteries

The parallel charge process of MH-Ni batteries was studied. The results showed that the current of branch was distributed according to state of charge (SOC) .During the parallel charge process,the charge current of batteries with higher SOC would be smaller,but the charge current of batteries with lower SOC would be higher. As the charge went on,its difference decreased gradually. Finally,the charge current of the batteries would become the same,and the charge process was completed. The parallel charge was favorable to decrease difference of SOC,improve the uniformity of batteries and prolong the service life of batteries.