期刊
JOURNAL OF POWER SOURCES
卷 253, 期 -, 页码 419-423出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.12.053
关键词
Aluminum alloy; Air battery; Potential; Self-corrosion
资金
- Cultivation Research Innovation Ability of Henan University of Science and Technology [2012ZCX017]
- Innovative Research Team (in Science and Technology) in University of Henan Province [2012IRTSTHN008]
- Science and Technique Key Program of He'nan Educational Committee [12A430007]
In this research, metal air battery based on Al, Zn, Al-0.5 Mg-0.02 Ga-0.1 Sn and Al-0.5 Mg-0.02 Ga -0.1 Sn-0.5 Mn (wt%) is prepared and the battery performance is investigated by constant current discharge test in 2 mol L-1 NaCl solutions. The characteristics of the anodes after discharge are investigated by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM). The corrosion behavior of the anodes is studied by self-corrosion rate measurement and potentiodynamic polarization measurement. The results show that Al-Mg-Ga-Sn Mn is more active than Al, Zn and Al -Mg-Ga-Sn anodes. The self-corrosion rate is found to be in the order: Al < Al-Mg-Ga-Sn-Mn < Al -Mg-Ga-Sn < Zn. It has been observed that the Al air battery based on Al-Mg-Ga-Sn-Mn offers higher operating voltage and anodic utilization than those with others. SEM and EIS results of the alloy are in good agreement with corrosion characteristics. (C) 2013 Elsevier B.V. All rights reserved.
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