Electrochemical Properties and Reaction Mechanism of Ti-V Multiphase Alloy at High Temperature

The cyclic stability and the high-rate discharge characteristic of Ti0.17Zr0.08V0.35Cr0.1Ni0.3 alloy at 333 K were investigated. The results show that the discharge capacity of Ti0.17Zr0.08V0.35Cr0.1Ni0.3 alloy is ~450 mAh/g at a current density of 60 mA/g at 333 K for the first cycle, and then it obviously decreases with increasing of cycle number. It should be noted that the excellent discharge capacity of Ti0.17Zr0.08V0.35Cr0.1Ni0.3 alloy will remain 160 mAh/g at a current density of 2400 mA/g to cut-off voltage of 0.6 V. Moreover, the possible factors affecting the electrochemical performance of this alloy were discussed