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 PbO2/PbSO4 or PbSO4/Pb electrode transformed from PbCO3 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 PbCO3 is as good as that of both electrodes made from lead oxide produced by mill machine,when a powder microelectrode with PbCO3 transformed into PbSO 4 in 1.0 mol/L H2SO4 solution,and then activated to form Pb or PbO2 using an unsymmetrical interchangeable signal (Qa/Qc or Qc/Qa being 0.2～0.4) in 2.0～2.5 mol/L H2SO4 solution. Furthermore, comparing the negative electrode activated in 2.5 mol/L H2SO4 solution containing 4% carbon colloid with one activated in the same H2SO4 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 PbSO4 crystals, which could increase the conductivity and reduce the shrinking of the electrode.
Keywords
Lead carbonate, Lead-acid battery, Powder microelectrode, Activation
Publication Date
1999-11-28
Online Available Date
1999-11-28
Revised Date
1999-05-08
Received Date
1999-02-07
Recommended Citation
Zhong-xu DAI, Di-hua WANG, Jun-wei JIANG, Yun-hong ZHOU, Jin-yun ZOU.
Studies of the Electrode Preparation of Electrode from Lead Carbonate for Lead acid BatteryⅠ. The Activation of the PME[J]. Journal of Electrochemistry,
1999
,
5(4): 437-442.
DOI: 10.61558/2993-074X.3202
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol5/iss4/14
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons, Power and Energy Commons
