【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。更多还原

【Abstract】 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),Chronoamperometry(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 anodic 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.更多还原