贮氢合金表面置换镀镍工艺及电化学性能的研究  

Study on the technology and electrochemical performance of displacement nickel plating hydrogen storage alloy

作　　者：夏同驰[1] 董会超[1] 王树新[1] 罗统钊[1] 伍伟[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2005年第4期6-8,共3页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：河南省科技攻关项目(0224380001)

摘　　要：采用置换镀镍工艺对贮氢合金粉进行了表面包覆处理.交流阻抗、循环伏安及模拟电池充放电实验表明,经过置换镀镍处理后,降低了贮氢合金电极表面的电化学反应阻抗,提高了电化学反应活性,明显改善了贮氢合金电极的充放电性能及活化性能.A surface treatment of displacement nickel plated hydrogen storage alloy was given. According to the experimental results of electrochemical impedance spectrum, cycle voltammetry and performance on charge/discharge, the surface of the hydrogen storage alloy electrode treated has much lower electrochemical resistance, higher electrochemical reaction activity. It also has better the activation property and performance on charge/ discharge.

关 键 词：贮氢合金 置换镀镍 交流阻抗 循环伏安 充放电性能 贮氢合金粉 镀镍工艺 电化学性能 置换 金表面 

分 类 号：TG139.7[一般工业技术—材料科学与工程] TM912.2[金属学及工艺—合金]