摘要
贮氢合金的表面性质对于它的电化学应用极为重要。锆基ＡＢ２型Ｌａｖｅｓ相贮氢合金具有容量高、寿命长的优点，但活化性能和大电流极电能力差，影啊了Ｌａｖｅｓ相贮氢合金在ＭＨ－Ｎｉ电池中的应用；ＡＢ５贮氢合金具有活化性能好、容量在２６０ｍＡｈ／ｇ～３２０ｍＡｈ／ｇ之间，是目前国内、日本国ＭＨ－Ｎｉ电池负极的主干材料，结合本实领室的工作，分析了贮氢合金表面与电极性能的关系，综述和比较了近年来对ＡＢ２和ＡＢ５型贮氢合金表面处理的研究情况。
The surface property of hydrogen storage alloy is very important for its electrochemical applica- tion. Zr-based Laves phase alloy has high discharge capacity and long cyclic life ,but it also has low activa- tion property and discharge ability under high-ratedischarge which affect its application in Ni-MH battery. AB5-type hydrogen storage alloy has good activation property and discharge capacity of 260mAh/g～ 320mAh/g ,and is main negative material for Ni-MH battery in China and Japan. The relationship between the surface property and electrochemical performance of the alloy is discussed with our previous research. The development statius of the different surface treatments for AB2 and AB5 alloys in resent years are re- viewed and compared.
出处
《电源技术》
CAS
CSCD
北大核心
1998年第2期86-89,共4页
Chinese Journal of Power Sources
关键词
贮氢合金
表面处理
蓄电池
电极
充电
材料
hydrogen storage alloys ,Ni-MH battery , surface property , surface treatments
