Microstructure and Electrochemical Properties of the Melt-Spinning Zr_0.9Ti_0.1(Ni, Co, Mn, V)_2.1 Alloy

Authors

Ming-fen WEN, Department of Material and Metallurgy, Northeastern University, Shenyang 110006, China; Institute of Metal Research, The Chinese Academy of Science, Shenyang 110015, China
Yu-chun ZHAI, Department of Material and Metallurgy, Northeastern University, Shenyang 110006, China
Lian CHEN, Institute of Metal Research, The Chinese Academy of Science, Shenyang 110015, China
Min TONG, Institute of Metal Research, The Chinese Academy of Science, Shenyang 110015, China
Hua ZHEN, Department of Material and Metallurgy, Northeastern University, Shenyang 110006, China; Institute of Metal Research, The Chinese Academy of Science, Shenyang 110015, China
Rong-jun MA, Institute of Chang Sha Mining and Metallurgy, Changsha 410084, China

Corresponding Author

Ming-fen WEN

Abstract

The microstructure and electrochemical properties of Zr_0.9Ti_0.1(Ni,Co,Mn,V)_2.1 alloys prepared by both the melt-spinning method and the conventional induction melting were investigated. XRD studies show that Zr_0.9Ti _0.1(Ni,Co,Mn,V)_2.1 alloys at as-cast, melt-spinning and annealing are all face center cubic structure with C₁₅ laves phase, the higher the melt-spinning rate, the more the amorphous content. The electrochemical measurements show that melt-spinning alloys have better active behavior, low discharge capacity (< 280 mAh/g); but after annealed, the alloys are activated completely with 30 cycles, the capacities about 340 mAh/g are higher than those of as-cast and melt-spinning alloys; the annealec alloys have a better cycle stability than that of as-cast alloy, and the higher the melt-spinning rate is, the more stable the alloy becomes; at 300 mAh/g current density, the capacity of annealed 40 m/s alloy is up to 85% of the maximum capacity after 800 cycles, the capacity decay rate is about 6.9%.

Keywords

Zr0.9Ti0.1(Ni, Co, Mn, V)2.1 alloy, Melt-spinning, XRD, Cycle stability

DOI Link

https://doi.org/10.61558/2993-074X.1427

Publication Date

2001-08-28

Online Available Date

2001-08-28

Revised Date

2001-08-04

Received Date

2001-06-07

Recommended Citation

Ming-fen WEN, Yu-chun ZHAI, Lian CHEN, Min TONG, Hua ZHEN, Rong-jun MA. Microstructure and Electrochemical Properties of the Melt-Spinning Zr_0.9Ti_0.1(Ni, Co, Mn, V)_2.1 Alloy[J]. Journal of Electrochemistry, 2001 , 7(3): 288-293.
DOI: 10.61558/2993-074X.1427
Available at: https://jelectrochem.xmu.edu.cn/journal/vol7/iss3/3