无机添加剂对铅负极循环伏安曲线的影响

Effects of inorganic additives on the cyclic voltammetry curves of lead negative

通过循环伏安曲线法研究无机添加剂对铅酸蓄电池负极板循环伏安曲线的影响。研究发现:铅负极板在4.30mol/L硫酸中循环伏安曲线上只有一对电流峰,还原电流峰的位置与析氢的电位相近。在几种添加剂存在时,除硫酸镉外,都没有改变循环伏安曲线的形状,峰电流的位置也改变不大。但硫酸镉添加剂的存在使伏安曲线在-1.050V处多出一个小的电流峰。

Effect of inorg anic additives on the cyclic voltammetry curves of lead negative for leadacid ba ttery were studied by means of cyclic voltammetry method.The results show that there is only a pair of electricity peaks in the cyclic voltammetry curve of the lead cathode in 4.30 mol/L H2SO4 solution, and the position of deoxidizationcurrent peak is similar to the H2gassing potential. Except for CdSO4, the other additives do not change the shape of cyclic voltammetry curve and they cause the position of electricity peaks have little change. However, CdSO4 additive makes a new electricity peak at -1.050 V in the cyclic voltammetry curve.