Li3VO4/N-doped graphene with high capacity and excellent cycle stability as anode for lithium ion batteries

Li3VO4/N-doped graphene with unique architecture of Li3VO4 nanoparticles embed in N-doped graphene is successfully prepared via a facile method, which shows superior electrochemical performance as anode for Li-ion batteries. At a specific current of 0.15 A g(-1), it delivers discharge and charge capacities of 550 and 429 mAh g(-1) in the initial cycle, which maintain of 478 and 476 mAh g(-1) after 100 cycles. After 150 cycles at various specific currents from 0.1 to 2.0 A g(-1), the discharge capacity can restore to 487 mAh g(-1) when reverting the specific current to 0.1 A g(-1). Meanwhile, even after 900 cycles at a specific current of 2.0 A g(-1), the Li3VO4/N-doped graphene electrode can deliver discharge and charge capacities of 195 and 193 mAh g. (C) 2015 Elsevier B.V. All rights reserved.