MH-Ni电池封口化成及其性能  

The Sealed Formation and Performances of MHNi Batteries

作　　者：陈卫祥[1,2] 唐致远[1,2] 刘昭林 郭鹤桐[1,2] 陈长聘 

机构地区：[1]浙江大学材料科学与工程学系 [2]天津大学应用化学系

出　　处：《应用化学》1997年第4期29-32,共4页Chinese Journal of Applied Chemistry

基　　金：国家科委863计划资助

摘　　要：在硼氢化钾碱性溶液中对金属氢化物（ＭＨ）电极的表面进行化学还原处理，提高了ＭＨ电极的放电容量、活化性能和电催化活性．用其为负极组装的ＡＡ型ＭＨ－Ｎｉ电池进行了封口化成，电池放电容量达到１１５０ｍＡｈ，５Ｃ下电池的放电容量达到０．２Ｃ下容量的８０％以上，电池在１Ｃ１００％ＤＯＤ（放电深度）充放电条件下。The performances such as the discharge capacity, activation, electrocatalytic activity and highrate dischargeability of MH electrodes were improved by the chemical reduction in an alkaline solution containing a reductant KBH4. MHNi batteries assembled with KBH4treated MH electrodes as negative electrodes were sealed formated. The performances of the batteries by sealed formation were superior to that of the batteries by open formation. The capacity approached 1150 mAh. Highrate dischargeability (at 5 C) was above 80% and the capacity at -18 ℃ (02 C) was 90% of that at room tempearture (02 C). The cyclic life of the MHNi battery at 1 C (100%DOD) increased from 100 cycles to 200 cycles and more.

关 键 词：MH-NI电池 MH电极 封口化成 镍氢电池 二次电池 

分 类 号：TM912.9[电气工程—电力电子与电力传动]