Influence of Rare Earth Oxide on the Performance of Secondary Zinc Electrodes

Authors

Xian-ling MENG, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China
Hua-bin YANG, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, ChinaFollow
Jun-hong WANG, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China
Zuo-xiang ZHOU, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China

Corresponding Author

Hua-bin YANG(hb_yang@nankai.edu.cn)

Abstract

Influence of La(OH)₃ or Ce(OH)₃ in secondary zinc electrode was investigated by the cyclic voltammetry, potentiodynamic polarizationand potentiostatic polarization tests and influence of La₂O₃ or CeO₂ in the charge/discharge performance of Zn/Ni battery was studied by galvanostatic charge/discharge experiment. The results showed that the film of rare earth hydroxide prevented the zincate species from transferring toward solution, enhanced hydrogen overpotential and decreased thecorrosion current density (i_corr), and therefore inhibited zinc corrosion. The potentiostatic polarization results at100mV overpotential showed that La(OH)₃ or Ce(OH)₃ oated on the zinc electrode effectively suppressed the zinc dendrite growth. The La₂O₃ or CeO₂ addition to the calcium zincate electrode improved the cycle performance of Zn/Ni battery.

Keywords

Secondary zinc electrode, La(OH)3 or Ce(OH)3, La2O3 or CeO2

DOI Link

https://doi.org/10.61558/2993-074X.1614

Publication Date

2005-02-28

Online Available Date

2005-02-28

Revised Date

2004-04-05

Received Date

2004-01-13

Recommended Citation

Xian-ling MENG, Hua-bin YANG, Jun-hong WANG, Zuo-xiang ZHOU. Influence of Rare Earth Oxide on the Performance of Secondary Zinc Electrodes[J]. Journal of Electrochemistry, 2005 , 11(1): 58-61.
DOI: 10.61558/2993-074X.1614
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss1/11