HeterostructureZnO-MnOnetwork with graphene for improved lithium ions storage anode

Abstract Fabrication of anode materials for lithium-ion batteries with superior electrochemical performance is highly desirable. Herein, we design zincoxide and manganese oxide composite with reduced graphene oxide via hydrothermal method followed by annealing. The capacities fade of manganese-based anode is improvedusing graphene network and ZnO composite as a result the unique structure delivered a highcycling performance.ZnO-MnOare homogenously embedded within graphene conducting network providing electronic pathways and mechanical stress. The higher electronic conductivity of ZnO–MnO@rGO cubes alsoleads to enhanced electrochemical performance. High specific charging capacity of 994 mA h g−1 is achieved at current rate of 200 mA g−1. The electroderetained high reversible charging capacity of 997 mA h g−1 after 300 cycles.This ZnO-MnO@rGO composite material could facilitate fabrication of unique structure and conductive network for advance lithium batteries.