Ce(OH)<sub>3</sub>包覆Zn-Al-LDHs在Zn-Ni二次电池中的电化学性能

doi:10.11896/cldb.20050107

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Abstract Ce(OH)₃ coating Zn-Al-LDHs were prepared by coprecipitation method and used as a new negative material for Zn-Ni secondary battery. The morphology and microstructure of Ce(OH)₃ coating Zn-Al-LDHs were represented by XRD and SEM. The results showed that Ce(OH)₃ was successfully coating on the surface of Zn-Al-LDHs. The electrochemical properties were studied by cyclic voltammetry (CV), Tafel polarization curve, electrochemical impedance spectroscope (EIS) and galvanostatic charge-discharge measurements as negative electrode materials for Zn-Ni battery. The results showed that Ce(OH)₃ coating Zn-Al-LDHs exhibits good cyclic reversibility and corrosion resistance, and the cyclic stability and charge-discharge characteristics of Ce(OH)₃ coating Zn-Al-LDHs are significantly improved in Zn-Ni secondary battery. After 80 cycles, the cycle retention rate can reach 94.5%.

Key words： Ce(OH)₃ coating Zn-Al-LDHs Zn-Ni secondary battery

Published: 30 September 2021

CLC number:

TM919.2

Fund:This work was financially supported by National Key Research and Development Plan (2019YFC1907900), National Natural Science Foundation of China (51774160), Yunnan Ten Thousand Talents Plan Young & Elite Talents Project (YNWR-QNBJ-2018-327) and Yunnan Province Scientific and Technological Talents and Platform Project (2017HA012).

About author:: Yasong Qu, graduated from Kunming University of Science and Technology with a master's degree in engineering in June 2020. From September 2017 to June 2020, he studied in School of Metallurgy and Energy Engineering, Kunming University of Science and Technology. His main research direction is the preparation and performance of zinc-nickel secondary battery anode materials.

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	QU Yasong
	YU Xiaohua
	XIE Gang
	WU Zhanxin
	SHI Chunyang
	YANG Yagang
	LI Yonggang

Cite this article:

QU Yasong,YU Xiaohua,XIE Gang, et al. Electrochemical Properties of Ce(OH)₃ Coating Zn-Al-LDHs in Zn-Ni Secondary Battery[J]. Materials Reports, 2021, 35(18): 18007-18011.

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http://www.mater-rep.com/EN/10.11896/cldb.20050107 OR http://www.mater-rep.com/EN/Y2021/V35/I18/18007

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