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Pb-Ca-Sn-Ba Grid Alloys for Valve-Regulated Lead Acid Batteries

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DOI: 10.4236/eng.2013.510A002    4,801 Downloads   7,674 Views   Citations

ABSTRACT

The effect of barium additives on the process of anodic corrosion of lead-tin-calcium alloys in a 4.8 М sulfuric acid solution was studied. Cyclic voltammetry, impedance spectroscopy, weight loss measurements and scanning electronic microscope analysis have allowed exploring the oxidation process and characterizing the formed corrosion layer. According to our results, barium introduction into lead-tin-calcium alloys increases their hardness, reduces their electrochemical activity, and improves their corrosion stability. Reduction of the calcium content in the alloy can be compensated by adding barium. Barium dopation at lead-tin-calcium alloys decreases the resistance of the oxide layer formed on the grid surface, in a deeply discharged state, and raises its resistance during floating conditions and at a charged state of the positive electrode.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

M. Burashnikova, I. Zotova and I. Kazarinov, "Pb-Ca-Sn-Ba Grid Alloys for Valve-Regulated Lead Acid Batteries," Engineering, Vol. 5 No. 10A, 2013, pp. 9-15. doi: 10.4236/eng.2013.510A002.

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