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研究论文

碳酸铅制备铅酸蓄电池电极的研究Ⅰ-电极的活化

  • 戴忠旭
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  • 武汉大学化学与环境科学学院!武汉430072,武汉大学化学与环境科学学院!武汉430072,武汉大学化学与环境科学学院!武汉430072,武汉大学化学与环境科学学院!武汉430072,武汉大学化学与环境科学学院!武汉430072

收稿日期: 1999-11-28

  修回日期: 1999-11-28

  网络出版日期: 1999-11-28

Studies of the Electrode Preparation of Electrode from Lead Carbonate for Lead acid Battery Ⅰ The activation of the PME

  • Dai Zhongxu Wang Dihua Jiang Junwei Zhou Yunhong Zou Jinyun
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  • (Dept.of Chem.,Wuhan Univ.,Wuhan 430072

Received date: 1999-11-28

  Revised date: 1999-11-28

  Online published: 1999-11-28

摘要

用循环伏安法研究了PbCO3 粉末微电极转化为PbSO4 电极的活化方法和条件.发现在2 ~2-5 mol/LH2SO4 溶液中由PbCO3 转化成PbO2/PbSO4 和PbSO4/Pb 电极时,以不对称交变讯号活化( 化成) 后,其循环伏安性能与由球磨机生产的PbO 粉所制得的相应电极性能相近.对于负极,在含有乙炔黑胶体的H2SO4 溶液中化成,由于碳胶粒在PbSO4 晶体上的吸附,阻止了充放电过程中电极材料的收缩,同时增加了电极的导电性,从而促进活性物质的转化形成

本文引用格式

戴忠旭 . 碳酸铅制备铅酸蓄电池电极的研究Ⅰ-电极的活化[J]. 电化学, 1999 , 5(4) : 437 -442 . DOI: 10.61558/2993-074X.3202

Abstract

Lead carbonate which was an intermediate product in lead hydrometallurgy without pollution of lead vapor and sulfur dioxide was selected as electrode material of lead_acid batteries. In the present work,the performances of PbO 2/PbSO 4 or PbSO 4/Pb electrode transformed from PbCO 3 have been investigated by powder microelectrode technique combined with cyclic voltammetry.The results show that the CV characteristics of either negative or positive electrode prepared from PbCO 3 is as good as that of both electrodes made from lead oxide produced by mill machine,when a powder microelectrode with PbCO 3 transformed into PbSO 4 in 1.0 mol/L H 2SO 4 solution,and then activated to form Pb or PbO 2 using an unsymmetrical interchangeable signal( Q a/ Q c or Q c/ Q a being 0.2~0.4) in 2.0~2.5 mol/L H 2SO 4 solution.Furthermore,comparing the negative electrode activated in 2.5 mol/L H 2SO 4 solution containing 4% carbon colloid with one activated in the same H 2SO 4 solution concentration without ABC,the cyclic voltammetric characteristics of the former has been obviously improved.It is possible that the carbon colloid particles can be adsorbed on PbSO 4 crystals,which could increase the conductivity and reduce the shrinking of the electrode

参考文献

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