铁取代氢氧化镍制备、结构与电化学性能——Ⅰ电化学性能  

Preparation, structure and electrochemical performance of iron substituted nickel hydroxides——Part Ⅰ Electrochemical performance

作　　者：冷拥军[1] 马紫峰[1] 张存根 张鉴清[2] 周锦鑫[1] 曹楚南[2] 

机构地区：[1]上海交通大学化学工程系,上海200240 [2]浙江大学化学系,浙江杭州310027

出　　处：《电源技术》1999年第6期322-324,327,共4页Chinese Journal of Power Sources

基　　金：上海交通大学科技基金!交财A2762

摘　　要：采用化学共沉淀方法制备了取代量为０％ ～４０％ 的Ｆｅ取代氢氧化镍，并详细地讨论了取代Ｆｅ含量对样品的电化学性能的影响。结果表明，随着Ｆｅ含量的增加，样品的活化性能和高倍率放电性能变差，但当Ｆｅ含量增加到１９．１％ ，样品为单一的α相（不同于β相），该相具有较高的放电平台，且放电曲线平坦。Iron substituted nickel hydroxides have been prepared by chemical co precipitation method with iron substitution rates ranging from 0% to 0.40%. Effect of iron subsititution on electrochemical performance of the samples had also been investigated in detail. The results show that the performance of activation and high rate discharge of the samples become worse by increasing iron substitution. However, when iron substitution exceeds 19.1% and only α phase presents, the samples have higher and more even discharge plateau.

关 键 词：化学共沉淀法 氢氧化镍 电化学性能 铁 电极 

分 类 号：TM910.3[电气工程—电力电子与电力传动]