Because of its low cost,nontoxicity,rich earth content and negligible volume expansion(less than 4%)during charging and discharging,anatase titanium dioxide(TiO2)has been considered as a potential anode material of LIBs.1 Unfortunately,the lithium storage performance of anatase TiO2 is not good enough for its practical application,which is mainly derived from relatively low lithium ion diffusion coefficient and poor electronic conductivity.1 Aliovalent doping in the structure of TiO2 could slightly modify the electronic structure which can improve the electronic conductivity and facilitate lithium ion diffusivity.2 For improving the capability,cycling stability and rate capacity of anatase TiO2-based electrode,Mo-doped TiO2 anatase encapsulated in nitrogen-doped amorphous carbon(denoted for Mo-TiO2@NC)were synthesized through a facile hydrothermal method and followed by coating with polydopamine(PDA)and heating treatment.When tested as anode for lithium ion batteries,the Mo-TiO2@NC electrode showed initial discharge and charge capacities of 850.7 and 548.3 mAh g-1 at a current density of 0.5 C respectively,with a remarkable discharge capacity maintained at 449.2 mAh g-1 after 100 cycles.Even at high current density of 5 C,a reversible capacity of 154 mAh g-1 after 200 cycles is obtained,displaying good rate capacity and long-term cycling stability.The outstanding electrochemical performance of Mo-TiO2@NC could be attributed to the synergistic effect of aliovalent ions doping and carbon coating.