影响电沉积镉负极活性的主要因素  

SOME INFLUENCE FACTORS OF ELECTRODEPOSITION OF CADMIUM ELECTRODE

作　　者：李新海[1] 何智慧[1] 陈阳国[1] 郭炳昆[1] 

机构地区：[1]中南工业大学冶金物理化学与化学新材料研究所

出　　处：《中南工业大学学报》1999年第4期392-394,共3页Journal of Central South University of Technology(Natural Science)

摘　　要：改变生产工艺条件制得电沉积镉负极，观察其显微结构并用恒电流法测试其比容量．结果表明：在电沉积过程中，酸度、镉离子浓度、温度、电流密度是主要影响因素．优化工艺条件，可获得高活性镉负极，比容量最高可达３７２ｍＡ·ｈ·ｇ－１．最优工艺条件：反应温度２０℃，Ｈ２ＳＯ４浓度０３５ｍｏｌ／Ｌ，镉离子浓度０２ｍｏｌ／Ｌ，电流密度０５２Ａ／ｃｍ２．The capacity and surface structure of electrodeposition of cadmium electrode were influenced by acidity, cadmium ion concentration, temperature and current density. A specific capacity of the electrodeposited Cd electrode can reach 372 mA·h/g. The best condition of electrodepositing Cd electrode is as follows: temperature is 20 ℃, acidity is 0.35 mol/L, cadmium ion concentration is 0.20 mol/L, and current density is 0.52 A/cm 2.

关 键 词：电沉积 镉负极 电池 电流密度 

分 类 号：TM912.2[电气工程—电力电子与电力传动]