Synthesis and Electrochemical Performances of MnV2O6/rGO Nanocomposite as New Anode Material for Lithium-Ion Battery Application

Abstract

Base on high theoretical capacity and synergistic effect of metal ions of transition metal vanadate composite, the MnV2O6/graphene (MnV2O6/rGO) nanocomposite was successfully synthesized through a hydrothermal method. The MnV2O6 nanoparticles were uniformly distributed and deposited on graphene networks. Benefited from the outstanding properties of the graphene nanosheets, the electrode conductivity was improved and the volume expansion was reduced. As an anode, the MnV2O6/graphene (MnV2O6/rGO) nanocomposite exhibited excellent lithium storage properties. An initial discharge capacity was 1350 mAh g-1, which increased to 1381 mAh g-1 after 100 cycles at 200 mA g-1, and showed a satisfactory reversible capacity of 640 mAh g-1 after 400 cycles at 5000 mA g-1.