▎ 摘　　要

As anode materials, TiO2 exhibits a suitable potential, fast kinetics and excellent cycling performance, while other transition metal oxides (such as NiO) deliver a much higher theoretical capacity with a moderate kinetics and limited cycling performance. Herein, a novel perovskite NiTiO3/reduced graphene oxide (RGO) composite with a particle size of 40-50 nm was first synthesized by solvothermal method and introduced as anode materials for lithium-ion batteries. The structure morphology and electrochemical performance of NiTiO3/RGO nanocomposite were investigated by X-ray diffraction (XRD), Raman spectroscopy measurements, scanning electron microscopy (SEM), transmission electron microscopy (TEM), galvanostatic charge-discharge tests, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests. The NiTiO3/RGO nanocomposite delivers a higher discharge capacity (1110.7 mA h g(-1)) and better cycling stability (65.3%), as well as improved rate capability over 50 cycles, compared with those of bare NiTiO3. The improved electrochemical properties of NiTiO3/RGO can be attributed to the good conductivity and large surface of RGO and the combination nanostructure of NiTiO3 and RGO.