Abstract
The microstructure and electrochemical properties of Zr 0.9 Ti 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 0.9 Ti 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
Zr 0.9 Ti 0.1 (Ni, Co, Mn, V) 2.1 alloy, Melt_spinning, XRD, Cycle stability.
Publication Date
2001-08-28
Online Available Date
2001-08-28
Revised Date
2001-08-28
Received Date
2001-08-28
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_(0.9)Ti_(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
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
