影响电沉积镉负极活性的主要因素

来源期刊：中南大学学报(自然科学版)1999年第4期

论文作者：李新海 何智慧 陈阳国 郭炳昆

文章页码：65 - 67

关键词：电沉积;镉负极;电池

Key words：electrodeposition; cadmium electrode; battery

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℃，H_２SO_４浓度0.35mol/L，镉离子浓度0.2mol/L，电流密度 0.52 A/cm^２．

Abstract: 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.