Effects of Ce on Electrochemical Activity and Self-Corrosion of Aluminum Alloy Anode for Aluminum-Air Battery

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Abstract Al-Ce alloys were smelted to research the effects of rare earth element on aluminum alloy anodes for aluminum-air battery. The electrochemical activity and self-corrosion were studied by the measurement technique of polarization curve, utilization ratio, and electrochemical impedance spectroscopy in 3 mol/L KOH, 3%NaCl electrolyte. The surface of Al-Ce alloy after discharging was analyzed by energy dispersive X-ray detector and scanning electron microscope. The results show that the addition of Ce increases the electrochemical activity and utilization ratio. With the increasing of Ce, the open circuit potential was more negative, the utilization ratio and the current density at -1.2 V were improved. When 1% Ce element was added, the best current density at -1.2 V(-103.90 mA·cm^-2) and the highest utilization ratio (72.3%) were obtained.

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	Articles by authors
	Meng Xu
	Li Yaozong
	Wang Yicheng
	Zhang Lijing
	Wang Wei

Keywords： aluminum-air battery； aluminum alloy anodes； rare earth element； electrochemical activity

Received 2016-07-15;

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Meng Xu, Li Yaozong, Wang Yicheng, Zhang Lijing, Wang Wei.Effects of Ce on Electrochemical Activity and Self-Corrosion of Aluminum Alloy Anode for Aluminum-Air Battery[J] Chemcial Industry and Engineering, 2018,V35(6): 26-31

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