期刊
ELECTROCHIMICA ACTA
卷 149, 期 -, 页码 193-205出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.10.053
关键词
Magnesium alloy; Mg-air battery; Discharge activity; Utilization efficiency
资金
- Postdoctoral Science Foundation of Central South University
- China Postdoctoral Science Foundation [2014M552151]
- National Natural Science Foundation of China [51101171]
The discharge behaviour of Mg-Al-Pb and Mg-Al-Pb-In alloys in 3.5 wt.% NaCl solution is investigated by electrochemical techniques, and compared with that of pure magnesium. The results show that Mg-AlPb- In alloy provides a more negative potential and exhibits a higher utilization efficiency in contrast with Mg-Al-Pb alloy and pure magnesium during the half-cell test at a large current density, and gives desirable discharge performance when used as anode for Mg-air battery. The peak power density of the Mg-air battery with Mg-Al-Pb-In anode is 94.5 mW cm(-2), which is comparable with those of Mg-H2O2 semi-fuel batteries. Moreover, the activation mechanism of Mg-Al-Pb-In alloy during the discharge process is also analyzed. (C) 2014 Elsevier Ltd. All rights reserved.
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