Composites of Reduced Graphene Oxide and Fe₂O₃ Nanoparticles Anchored on MoS₂ Nanosheets for Lithium Storage

Along with the progress of electric vehicles and hybrid electric vehicles, high-performance lithium-ion batteries are needed urgently. Herein, we design and prepare a Fe2O3/MoS2/rGO composite in which the unique three-dimensional heterostructure effectively alleviates the volumetric change during charge/discharge processes and enhances the electronic conductivity of an active material, thus improving the reversible capacity of a battery. Under a low current density (200 mA g–1), Fe2O3/MoS2/rGO delivers a high discharge capacity of 906 mAh g–1 after 100 cycles. Even at a high current density (1000 mA g–1), the discharge capacity reaches 711 mAh g–1 after 500 cycles. In addition, Fe2O3/MoS2/rGO has also a good rate performance (608 mAh g–1 at 1500 mA g–1). The experimental results show that the synthesis of Fe2O3/MoS2/rGO is an effective approach to prepare anode materials that possess the outstanding electrochemical properties for lithium storage.