铅-稀土合金在VRLA电池中的应用  

Application of Lead-Rare Earth alloys in VRLA battery

作　　者：杨春晓[1] 王会锋[1] 周彦葆[1] 柳厚田[1] 

机构地区：[1]复旦大学化学系上海市分子催化和功能材料重点实验室,上海200433

出　　处：《蓄电池》2005年第4期147-149,156,共4页Chinese LABAT Man

基　　金：国家自然科学资金资助项目(20173013;29873013)

摘　　要：采用线性电位扫描法(LSV)、交流伏安法(ACV)、循环伏安法(CV)、计时电流法(i^t曲线)和俄歇电子能谱(AES)等方法研究了铅-稀土合金在硫酸溶液中的阳极行为。实验结果表明,一些稀土元素,如Sm,Gd,Tb等可显著抑制阳极Pb(Ⅱ)腐蚀膜的生长和降低阳极腐蚀膜的阻抗。将铅-稀土合金和Pb-Ca-Sn合金作为正极板栅制备成2 V-200 Ah和12 V-12 Ah的VRLA电池。其电性能测试结果表明,以铅-稀土合金作为正极板栅的电池的浮充寿命和循环充放寿命显著优于Pb-Ca-Sn合金板栅的。The anodic behavior of Lead-Rare Earth （Pb-RE） alloys in sulfuric acid solution has been studied using Linear-Sweep Voltammetry （LSV）, AC Voltammetry （ACV）, Cyclic Voltammetry （CV）, Chmnoamperometry （ i - t curve）, and Auger Electron Spectroscopy （AES）. The experimental results show that the rare-earth elements in the lead alloys can inhibit the growth of the anodie Pb （ Ⅱ ） films and reduce the resistivity of the anodic Pb （ Ⅱ ） films. 2V-200Ah and 12V-12Ah VRLA batteries were seperately manufactured using the Pb-RE and Pb-Ca-Sn positive grids. The results of the test show that the floating life and cycle charge-discharge life of the batteries with the Pb-RE positive grids are significantly better than that of the batteries with Pb-Ca-Sn positive grids.

关 键 词：铅-稀土合金 VRLA电池 阳极Pb(Ⅱ)膜 正极板栅 

分 类 号：TM912.4[电气工程—电力电子与电力传动]