Abstract
Mg–Li–Al–Sn and Mg–Li–Al–Sn–Ce alloys were prepared using a vacuum induction melting method. Their electrochemical oxidation behavior in NaCl solution was investigated by means of potentiodynamic and chronoamperometric measurements. The surface morphology after discharge was examined using scanning electron microscopy. Utilization efficiency was estimated with a mass-loss method. The results indicated that Mg–Li–Al–Sn has a higher discharge current density but lower utilization efficiency than Mg–Li–Al–Sn–Ce. The typical utilization efficiency after continuous discharging at constant potential of −1.0 for 2 h is 65% and 70% for Mg–Li–Al–Sn and Mg–Li–Al–Sn–Ce, respectively. The utilization efficiency decreased with the increase of anodic potential. Both alloys have similar self-discharge rate in NaCl solution at open-circuit potential.
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Acknowledgments
We gratefully acknowledge the financial support of this research by Heilongjiang Provincial Natural Science Foundation (ZJG2007-06-02), Heilongjiang Postdoc Foundation (LBH-Q06091), and Harbin Engineering University (HEUFT07030).
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Cao, D., Cao, X., Wang, G. et al. Electrochemical discharge performance of Mg-Li based alloys in NaCl solution. J Solid State Electrochem 14, 851–855 (2010). https://doi.org/10.1007/s10008-009-0865-7
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DOI: https://doi.org/10.1007/s10008-009-0865-7