Effects of Barium on the Performance of Secondary Alkaline Zinc Electrode

Authors

Yi ZHENG, CHEN Hua, SHAO Hai-bo, ZHANG Jian-qing (Department of Chemistry, Zhejiang University, Hangzhou 310027,China;
Jian-ming WANG, , CHEN Hua, SHAO Hai-bo, ZHANG Jian-qing (Department of Chemistry, Zhejiang University, Hangzhou 310027,China;

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

DOI Link

https://doi.org/10.61558/2993-074X.1580

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