Tensile Properties and Corrosion Resistance of Al-xFe-La Alloys for Aluminium Current Collector of Lithium-Ion Batteries

Xin Yang; Dongyan Ding; Yawu Xu; Wenlong Zhang; Yongjin Gao; Zhanlin Wu; Guozhen Chen; Renzong Chen; Yuanwei Huang; Jinsong Tang

doi:10.3390/met9060706

Metals (Jun 2019)

Tensile Properties and Corrosion Resistance of Al-xFe-La Alloys for Aluminium Current Collector of Lithium-Ion Batteries

Xin Yang,
Dongyan Ding,
Yawu Xu,
Wenlong Zhang,
Yongjin Gao,
Zhanlin Wu,
Guozhen Chen,
Renzong Chen,
Yuanwei Huang,
Jinsong Tang

Affiliations

Xin Yang: Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Dongyan Ding: Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Yawu Xu: Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Wenlong Zhang: Institute of Electronic Materials and Technology, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Yongjin Gao: SJTU-Huafon Joint Lab, Huafon NLM Al Co., Ltd., Shanghai 201506, China
Zhanlin Wu: SJTU-Huafon Joint Lab, Huafon NLM Al Co., Ltd., Shanghai 201506, China
Guozhen Chen: SJTU-Huafon Joint Lab, Huafon NLM Al Co., Ltd., Shanghai 201506, China
Renzong Chen: Lab of Aluminium Alloys, Shanghai Huafon Materials Technology Institute, Shanghai 201203, China
Yuanwei Huang: Lab of Aluminium Alloys, Shanghai Huafon Materials Technology Institute, Shanghai 201203, China
Jinsong Tang: Lab of Aluminium Alloys, Shanghai Huafon Materials Technology Institute, Shanghai 201203, China

DOI: https://doi.org/10.3390/met9060706
Journal volume & issue: Vol. 9, no. 6
p. 706

Abstract

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Al-xFe-La alloys (x = 0.07, 0.1, 0.2) for aluminum current collectors of lithium-ion batteries were prepared and the microstructure of Al-0.07Fe-0.07La, Al-0.1Fe-0.07La and Al-0.2Fe-0.07La aluminum alloys were observed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS). The experimental results showed that with the increase of Fe content, the size of the second phases in Al-xFe-0.07La alloys became finer and more dispersed and that the microstructure of the alloy had improved. The strength and corrosion resistance of Al-xFe-La alloys were studied by tensile tests and electrochemical tests and the morphological investigations of samples were also conducted by SEM and EDS. With the increase of Fe content, the strength and corrosion resistance of Al-xFe-La alloys became better. Compared to Al-0.07Fe-0.07La alloy, the yield strength and tensile strength of the Al-0.2Fe-0.07La alloy increased by 51.19% and 58.48% respectively, and the elongation increased by 88.41%. Moreover, Al-0.2Fe-0.07La alloy had much more positive corrosion potential and much smaller corrosion current than those of Al-0.07Fe-0.07La alloy.

Published in Metals

ISSN: 2075-4701 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.mdpi.com/journal/metals

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