Abstract
Influence of La(OH)_(3 )or Ce(OH)_3in secondary zinc electrode was investigated by the cyclic voltammetry, potentiodynamic polarizationand potentiostatic polarization tests and influence of La_2O_3or CeO_2in 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 thatLa(OH)_3or Ce(OH)_3coated on the zinc electrode effectively suppressed the zinc dendrite growth. The La_2O_(3 )or CeO_2addition to the calcium zincate electrode improved the cycle performance of Zn/Ni battery.
Keywords
Secondary zinc electrode, La(OH)_3or Ce(OH)_3, La_2O_3or CeO_2
Publication Date
2005-02-28
Online Available Date
2005-02-28
Revised Date
2005-02-28
Received Date
2005-02-28
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
Included in
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