碳酸铅作为铅酸蓄电池电极材料的研究

采用粉末微电极技术和循环伏安法研究了ＰｂＣＯ３转化为铅酸电池电极活性物质的途径以及几种因素对ＰｂＣＯ３转化的ＰｂＳＯ４／ＰＢ电极性能的影响。ＰｂＣＯ３粉末在Ｈ２ＳＯ４溶液中化学转化－电化学活化后，正、负极的伏这行为与文献报道的类似。结果表明，较高扫速活化的ＰｂＳＯ４／Ｐｂ电极性能稳定且活性较高；转化ＰｂＣＯ３的Ｈ２ＳＯ４浓度０．５￣１．０ｍｏｌ·Ｌ＾－１优于２．５￣５．０ｍｏｌ·Ｌ＾－１，３０℃附

A Study on Lead Carbonate as Electrode Materialsof LeadAcid Battery

To prevent the pollution of refining lead process and realize the cleaner production of lead acid battery, the transformation to electrode active materials and the effects of some factors on the performance of PbSO4/Pb from PbCO3 were investigated by powder microelectrode combined with cyclic voltammetry. The cyclic voltammograms for positive or negative electrode in which PbCO3 suffered chemical transformation to PbSO4, and then electrochemical activation to form PbO2 or Pb in H2SO4 solution were similar to those reported in the literatures. The results showed that the electrochemical activity and stability of the PbSO4/Pb electrode transformed by higher scan rate were better, that 0510 molL-1H2SO4 solution was better than 25molL-150molL-1,and that the electrode property was good at 30during the chemical transformation. Thus, it is possible to make the electrodes of lead acid battery from PbCO3 .