Abstract

V2O5 has been considered as ideal alternatives of cathode materials for lithium ion battery due to its high specific capacity. However, the poor ionic and electronic conductivity has limited the practical application. Herein, Ni incorporated V2O5 with rice shape was successfully prepared by a synergistic strategy of solution combustion synthesis and low temperature calcine. The specific structure can rapidly transfer Li+ and shorten the transmission distance of electrolyte, which improves the kinetics of the chemical reaction and the electrochemical performance of V2O5. The sample delivers a high discharge capacity of 225.1 mA h/g with 92.3% capacity retention after 100 cycles and good rate capability. This work puts forward a new Vision to optimize the vanadium-based cathode material for lithium ion battery.

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