MH-Ni电池活化过程中主要影响因素的研究  

Study on main factors affecting the activation of Ni-MH batteries

作　　者：颜广炅[1] 余成洲[1] 赖为华[1] 董清海[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《电源技术》2000年第3期146-148,共3页Chinese Journal of Power Sources

摘　　要：研究了不同电解液量下电池的放电容量、放电电压平台和内阻的变化 ,以及直封后电池的搁置温度、搁置时间和充放电制度对电池活化速度和放电性能的影响。结果表明 ,电池封口前的注液量对电池的放电容量、放电电压乃至以后的寿命都有影响 ,合适的电液量应在 2 .6～ 3 .0 g[即K为 1 5 .8%～ 1 8.0 % ,K =m(电解液 )∶m(正级 +负极 ) ]之间 ;封口后 ,一定的搁置时间将有益于电池的活化 ,但并不与时间成正比 ,合适的时间是 7d左右 ;充放电制度对电池的性能影响很大 ,尤其是初期活化时充入的电量多少直接影响电池的最终容量 ,合适的条件是 :(1 ) 0 .1C× 5h ,搁置 0 .5h ,0 .2C→1V ;(2 ) 0 .1C× 1 4h ,搁置 0 .5h ,0 .2C→ 1V。此外 ,电池搁置的温度对其活化速度也有一定的影响 。The changes of capacity, the plateau voltage and the internal resistance of Ni MH batteries with different amount of electrolyte during activation process were investigated. The effect of storage duration, storage temperature and charge/discharge procedure on activation speed and discharge properties were also studied. The results show that all the mentioned factors affect the battery properties. The proper amount of electrolyte should be 2.6—3.0 g and the suitable storage duration is about seven days. The most suitable charge/discharge procedure is: (1)0.1 C×5 h, an interval for 0.5 h, 0.2 C→1.0 V; (2)0.1 C×14 h, an interval for 0.5 h, 0.2 C→1.0 V. In addition, the storage temperature should not be less than 20 ℃.

关 键 词：MH-NI电池 电化学性能 活化过程 电解液 

分 类 号：TM912.2[电气工程—电力电子与电力传动]