富铈稀土添加剂对低锑合金阳极腐蚀膜的影响  

Effects of rich Ce rare earths additive on anode corrosion film of Pb-low antimony alloy

作　　者：杨习文[1] 唐有根[1] 舒宏[1] 申建斌[1] 

机构地区：[1]中南大学化学化工学院化学电源与材料研究所,湖南长沙410083

出　　处：《电池工业》2006年第5期314-317,共4页Chinese Battery Industry

摘　　要：应用线形电位扫描、计时电势分析法、交流伏安法和腐蚀失重法研究了在含砷锡的低锑合金中添加混合稀土(85%Ce,10%Y,3%La)对合金性能的影响,并用金相显微镜观察了合金的微观组织。结果表明:富铈稀土能细化铅锑合金晶粒,薄化晶界,减少危害性大的晶体裂痕,降低整体腐蚀速度和腐蚀的危害性;富铈稀土能抑制阳极膜中的PbO生长,生成的PbO也易于还原,降低了阳极膜的阻抗,提高了板栅合金的深循环性能。The effect of rich Ce rare earths（85% Ce, 10% Y, 3% La） on the performance of lead -low antimony alloy was studied by use of linear sweep vohammetry, Chronopotentiometry,AC voltammetry and corrosion weightlessness. Microscopic structure was observed in metallomicroscope. The results show that the addition of Ce rich rare earths minish the crystal grain and thin the grain boundary; It also decreases destructive crystal cracks, slowdowns total corrosion and reduces harm of corrosion; It also makes PbO of anode film easier deoxidized, and can restrain the creation of PbO in the corrosion film so reduce the resistance of anode film, and the capability of deep cycle can be increased.

关 键 词：铅蓄电池 铅锑合金 稀土 铈 

分 类 号：TM912.1[电气工程—电力电子与电力传动]