Abstract
The active material of secondary alkaline zinc electrode with barium additives was prepared by a chemical reaction method and characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The electrochemical performance of various pasted Zn electrodes was investigated by cyclic voltammetry, charge/discharge method and electrochemical impedance spectra (EIS) technology. The addition of barium can synthesize a compound barium zincate with the molecular structure of BaZn(OH)_(4)· xH_(2)O and improve the discharge performance. The EIS of the various Zn electrodes showed two time constants besides diffusion impedance, including a state variable representing the covering degree of discharge products on the electrode surface.
Keywords
Barium zincate, Pasted zinc electrode, Zinc oxide, EIS
Publication Date
2004-08-28
Online Available Date
2004-08-28
Revised Date
2004-08-28
Received Date
2004-08-28
Recommended Citation
Yi ZHENG, Jian-ming WANG.
Effects of Barium on the Performance of Secondary Alkaline Zinc Electrode[J]. Journal of Electrochemistry,
2004
,
10(3): 314-319.
DOI: 10.61558/2993-074X.1580
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol10/iss3/10
References
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