Abstract:The spinel Li4Ti4.9Ni0.1O12 anode material for lithium-ion batteries were successfully synthesized by solid-state reaction method using Ti(OC4H9)4, CH3COOLi?2H2O and Ni(CH3COO)2?4H2O as raw materials.The crystalline structure, morphology and electrochemical properties of the obtained materials were characterized by XRD, SEM, half cell charge-discharge tests and AC impedance. The results showed that The synthesized Li4Ti4.9Ni0.1O12 composite particles were homogeneous without impure phase. The first discharge capacity was 173.3mAh g-1 and coulombic efficiency was 97.4% at 0.5 C rate.The specific capacity remained163.4mAh g-1 after 50 cycles with a capacity retention of 94.3%。