杂质离子对MH/Ni电池性能的影响  

Effects of impurity ions on the performance of Ni/MH battery

作　　者：韩晓辉[1] 唐有根[1] 李文良 李玉杰[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]深圳市豪鹏科技有限公司,广东深圳518111

出　　处：《电池》2007年第5期365-366,共2页Battery Bimonthly

摘　　要：研究了电解液中CO32-、NO3-和Cl-杂质离子对MH/Ni电池性能的影响。结果表明:杂质离子会使MH/Ni电池的容量和放电平台降低,循环寿命缩短,储存后电压下降更快;杂质离子的影响,初期表现不明显,但在后期会使电池性能显著下降,其中NO3-对电池性能的影响最大。Effects of some impurity ions （CO3^2-, NO3^-, Cl^-） in the electrolyte on the performance of Ni/MH battery were studied. The results showed that the impurity ions could decrease the capacity of the Ni/MH battery and discharge plateau, shorten the cycle life and the voltage decrease even more quickly after storage. The effects of impurity ions were not obvious at initial stage, but could notably decrease the performance of the battery at the end. The NO3^- had the worst effects.

关 键 词：电解液 杂质离子 高容量MH/Ni电池 电化学性能 

分 类 号：TM912[电气工程—电力电子与电力传动]