Effect of Rare Earth Element CE on Electrochemical Performance of Al-0.075in-0.5mg-0.04sn Alloy as Anode for Al−Air Batteries

Al-0.075In-0.5Mg-0.04Sn-xCe [x = 0~0.2% (mass fraction)] alloy as anode material for aluminum air battery was melted and prepared. Its electrochemical performance were analysed and studied in 4mol/LNaOH solution by the polarization curve (Tafel), electrochemical impedance (EIS), self-corrosion rate, discharge performance and so on. After discharge, the element composition and the surface microtopography of alloy were tested via wavelength dispersive spectroscopy(WDS) and scanning electron microscopy (SEM) of EPMA. The results illustrated that adding appropriate amount of Ce to the alloy can reduce the self-corrosion rate and improve its electrochemical performance, and the comprehensive performance of Al-0.075In-0.5Mg-0.04Sn-0.14Ce anode is the best.

Keywords: aluminum anode material, Rare earth element, Electrochemical performance, aluminum air battery

Suggested Citation: Suggested Citation

WANG, Faqiang and YANG, Yagang and TAN, Haotian and ZHAO, Qun and Qingfeng, SHEN and Gang, XIE and Yu, Xiaohua, Effect of Rare Earth Element CE on Electrochemical Performance of Al-0.075in-0.5mg-0.04sn Alloy as Anode for Al−Air Batteries. Available at SSRN: https://ssrn.com/abstract=4060466 or http://dx.doi.org/10.2139/ssrn.4060466