化学改性MnO_2电化学性能的研究  

Study on electrochemical properties of chemical modified MnO_2

作　　者：王小花[1] 杨占红[1] 冯燕[1] 王升威[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《电池工业》2008年第5期335-338,共4页Chinese Battery Industry

摘　　要：通过加入Bi3+、Co2+、Pb2+,分别制备了单掺杂改性的MnO2和二组分掺杂、三组分掺杂改性MnO2。并对样品极化曲线、放电性能及循环寿命进行了分析。分析结果表明,化学改性有利于改善MnO2的电化学性能,其中二组分和三组分掺杂改性的效果更加明显。Single dopant modified MnO2 was prepared by introducing Bi^3＋,Co^2＋ and Pb^2＋ respectively. Didopant and tri-dopant modified MnO2 were also prepared by adding the above elements. The samples were characterized by polarization curves, discharging curves and cycle life analysis. The results indicated that the electrochemical properties of MnO2 were improved by chemical modification. The effect of di-dopant and tri-dopant modification was more obvious.

关 键 词：二氧化锰 化学改性 极化 放电性能 循环寿命 可充碱性锌锰电池 

分 类 号：TM2[一般工业技术—材料科学与工程] TM912.2[电气工程—电工理论与新技术]