Abstract
The α-PbO2 and β-PbO2 powders were prepared using simple chemical synthetic methods, and their crystalline structures and surface morphologies were characterized with X-ray powder diffraction spectroscopy and scanning electron microscopy. Using the as-synthesized α-PbO2 and β-PbO2 powders as positive active materials, the electrochemical performance of the two PbO2 materials was investigated by means of cyclic voltammetry, galvanostatic charge-discharge tests, and electrochemical impedance spectroscopy. The results indicate that the discharge capacity of α-PbO2 electrode is larger than that of β-PbO2; moreover, the composite electrodes made by α-PbO2 and β-PbO2 mixtures with different proportions are favorable for enhancing the charge-discharge cycle performance of PbO2 positive electrode.
Graphical Abstract
Keywords
lead dioxide, lead acid battery, charge-discharge performance, electrochemical impedance spectroscopy
Publication Date
2013-02-28
Online Available Date
2012-03-27
Revised Date
2012-03-17
Received Date
2011-11-04
Recommended Citation
Cong-Ying CUI, Xue-Mei MA, De-Long KONG, Hou-Yi MA.
A Comparative Study of Charge-Discharge Behaviors of α-PbO2 and β-PbO2 Cathodes[J]. Journal of Electrochemistry,
2013
,
19(1): Article 12.
DOI: 10.61558/2993-074X.2938
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol19/iss1/12
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