Crystallographic and Electrochemical Characteristics of Melt-Spun Ti45Zr30Ni25RE3 (Y, La) Alloys
Ti45Zr30Ni25RE3 (Y, La) alloys were prepared by melt-spun at wheel velocities of 20 m s–1. Ti45Zr30Ni25 and Ti45Zr30Ni25La3 were composed of I-phase, amorphous and Laves phases. Ti45Zr30Ni25Y3 consisted of amorphous phase and I-phase. The addition of La and Y caused the decrease of maximum discharge capacity and the increase of cycling stability, which should be ascribed to the change of various phase abundant. The high-rate dischargeability of Ti45Zr30Ni25 alloy electrode was better than that of Ti45Zr30Ni25Y3 and Ti45Zr30Ni25La3 alloy electrode, which was attributed to the better electrochemical kinetics.
B. Z. Liu et al., "Crystallographic and Electrochemical Characteristics of Melt-Spun Ti45Zr30Ni25RE3 (Y, La) Alloys", Advanced Materials Research, Vol. 266, pp. 254-257, 2011