Microstructure and electrochemical properties of ball-milled AB<sub>5</sub>+<i>x</i>%VFe alloys

Li Lirong

doi:10.7513/j.issn.1004-7638.2022.04.008

Volume 43 Issue 4

Sep. 2022

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Li Lirong. Microstructure and electrochemical properties of ball-milled AB5+x%VFe alloys[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 48-54. doi: 10.7513/j.issn.1004-7638.2022.04.008

Citation:

Li Lirong. Microstructure and electrochemical properties of ball-milled AB₅+x%VFe alloys[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 48-54. doi: 10.7513/j.issn.1004-7638.2022.04.008

Li Lirong. Microstructure and electrochemical properties of ball-milled AB5+x%VFe alloys[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 48-54. doi: 10.7513/j.issn.1004-7638.2022.04.008

Citation:

Li Lirong. Microstructure and electrochemical properties of ball-milled AB₅+x%VFe alloys[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(4): 48-54. doi: 10.7513/j.issn.1004-7638.2022.04.008

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Microstructure and electrochemical properties of ball-milled AB₅+x%VFe alloys

doi: 10.7513/j.issn.1004-7638.2022.04.008

Li Lirong

School of Science, Inner Mongolia of Science and Technology, Baotou 014010, Inner Mongolia, China

Received Date: 2022-03-25
Publish Date: 2022-09-14

Abstract

Abstract

The MlNi_3.55Co_0.75Mn_0.4Al_0.3+x%VFe(x=5, 10, 15, 20) composite hydrogen storage alloys were synthesized by mechanical ball-milling. The microstructure and electrochemical properties of the composites were investigated. The microstructure analysis indicates that the parameters a and V of the main phase increase with the increase of milling time. The electrochemical analysis indicates that, with increasing VFe content x, the maximum capacity C_max and the hydrogen diffusion coefficient D of the alloy first increase and then decrease, and reach the maximum of 310 mAh/g and 7.6×10⁻¹¹ cm²/s with x=10. The cycle stability test was carried out on the alloy, and the results show that the discharge capacity retention rate of MlNi_3.55Co_0.75Mn_0.4Al_0.3+10%VFe ball-milled for 10 h was 98% after 100 cycles.
- hydrogen storage alloy,
- AB₅alloy,
- 80VFe,
- ball milling,
- electrochemical properties

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References(16)

References

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