Effect of La Addition on the Microstructure and Properties of Al-Fe-Mn Alloys for Lithium Battery Current Collectors

Zhu, Jingkun; Ding, Dongyan; Zhang, Wenlong; Gao, Yongjin; Wu, Zhanlin; Chen, Guozhen; Chen, Renzong; Huang, Yuanwei; Tang, Jinsong

doi:10.1007/s11664-020-08658-x

Cited by 2 publications

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“…Xu et al [ 14 ] discovered that La-containing Al-Fe-Cu alloy had good electrical conductivity, tensile property and corrosion resistance compared with La-free Al-Fe-Cu alloy. Zhu et al [ 15 ] found that adding a reasonable amount of La to Al-Fe-Mn alloy refined the grains and decreased the amount of precipitates at the grain boundaries, which could increase the alloy’s strength.…”

Section: Introductionmentioning

confidence: 99%

Tensile Property and Corrosion Performance of Ag Microalloying of Al-Cu Alloys for Positive Electrode Current Collectors of Li-Ion Batteries

et al. 2022

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The development of a current collector for Li-ion batteries is of great significance for improving the performance of Li-ion batteries. Tensile property and corrosion performance of the positive electrode current collectors are an indispensable prerequisite for the realization of high-performance Li-ion batteries. In our study, the effects of Ag alloying on the microscopic structure, electrical conductivity, tensile property and corrosion resistance of Al-xCu (x = 0.1–0.15%) alloy foils were investigated. Moderate Ag addition on the Al-Cu alloy could reduce the size of second phases and promote the formation of second phases. The tensile strength of the Al-0.1Cu-0.1Ag alloy was higher than that of the Al-0.1Cu alloy at both room and high temperatures. All of the alloy foils demonstrated high electrical conductivity around 58% ICAS. The corrosion potential and corrosion current density of the Al-0.1Cu alloy were demonstrated by Tafel polarization to be −873 mV and 37.12 μA/cm2, respectively. However, the Al-0.1Cu-0.1Ag alloy showed enhanced corrosion resistance after the Ag element was added to the Al-0.1Cu alloy, and the Al-0.1Cu-0.1Ag alloy had a greater positive corrosion potential of −721 mV and a lower corrosion current density of 1.52 μA/cm2, which suggests that the Ag element could significantly improve the corrosion resistance of the Al-Cu alloy.

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Section: Introductionmentioning

confidence: 99%

Tensile Property and Corrosion Performance of Ag Microalloying of Al-Cu Alloys for Positive Electrode Current Collectors of Li-Ion Batteries

et al. 2022

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Effect of La Addition on Microstructure and Properties of Al-0.2Fe-0.06Cu Alloy

Peng

Ding

et al. 2022

Metals

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The increasing application of lithium-ion batteries has led to higher requirements being imposed on the performance of current collectors. In this work, the effect of La content on the microstructure and properties of Al-0.2Fe-0.06Cu alloy was invested through optical microscopy, scanning electron microscopy and mechanical/electrical/electrochemical performance tests. Experimental results indicated that the addition of La was beneficial to grain refinement and promote the formation of La-containing compounds. However, excessive La addition weakened the refinement effect. Grain refinement played a major role in affecting the mechanical properties of the alloy, but had little effect on the conductivity. In comparison with Al-0.2Fe-0.06Cu, the La-containing alloys had lower corrosion potential, which indicated that the addition of La element could improve the corrosion resistance of the Al-0.2Fe-0.06Cu alloy. The addition of La improved the mechanical properties of the alloy at room temperature and 50 °C. When the La addition was 0.1wt.%, the alloy had the best mechanical properties. The corrosion resistance of the alloy continued to improve with increases in the La content.

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Effect of La Addition on the Microstructure and Properties of Al-Fe-Mn Alloys for Lithium Battery Current Collectors

Cited by 2 publications

References 47 publications

Tensile Property and Corrosion Performance of Ag Microalloying of Al-Cu Alloys for Positive Electrode Current Collectors of Li-Ion Batteries

Tensile Property and Corrosion Performance of Ag Microalloying of Al-Cu Alloys for Positive Electrode Current Collectors of Li-Ion Batteries

Effect of La Addition on Microstructure and Properties of Al-0.2Fe-0.06Cu Alloy

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