MH-Ni 电池中正极材料的应用基础研究  

Basic research on application of Ni(OH) 2 positive material in Ni MH batteries

作　　者：范祥清[1] 陈德月[1] 修荣 林奕迎 

机构地区：[1]华南理工大学化学系

出　　处：《电源技术》1997年第3期101-105,共5页Chinese Journal of Power Sources

摘　　要：主要研究了含钴添加剂对Ｎｉ（ＯＨ）２活性及结构的影响。对Ｎｉ（ＯＨ）２进行Ｘ射线衍射结构分析（ＸＲＤ）表明，含添加剂Ｎｉ（ＯＨ）２的晶体有序性差，含更多的晶格缺陷。由热重分析（ＴＧＡ）表明，含添加剂的Ｎｉ－（ＯＨ）２晶格中含有结晶水，其电化学活性的提高与此有关。用循环伏安法对粉体Ｎｉ（ＯＨ）２电极在ＫＯＨ水溶液中进行了研究，结果表明，添加剂能改善电极反应的可逆性。The effect of cobalt containing additives on activity and structure of Ni(OH) 2 have been studied.The results of XRD analysis show that the additives result in increase of lattice defects and lattice disorder in Ni(OH) 2.The results of TGA analysis show that the Ni(OH) 2 containing additives is combined with crystal water in its lattice,which is considered in association with the higher electrochemical activity.The cyclic voltammetry measure was used to study for the powder Ni(OH) 2 electrode in 6 mol/L KOH solution.The results indicate that the additives improve the reversibility of the electrochemical reaction significantly.

关 键 词：MH-NI电池 氢氧化镍 添加剂 正极材料 

分 类 号：TM241.013[一般工业技术—材料科学与工程] TM911[电气工程—电工理论与新技术]