Abstract:Li2NiTiO4 with rock-salt structure is a kind of layered cathode materials for lithium ion battery which can extract 2 lithium ions per formula. This material has larger charged capacity, however the reversible discharge capacity is limited. In this Study, molybdenum was doped into Li2NiTiO4cell by citric acid sol-gel method using LiNO3, Ni(NO3)2?6H2O, and Tetrabutyl titanate as starting materials, Mo7O24 (NH4)6?4H2O as molybdenum source. The structure, micro morphology and elements’ valences were characterized by XRD, SEM and XPS. The electrochemical properties was tested with charge-discharge cycle, CV and EIS. Through Mo-doping, the electrochemical properties was enhanced: the reversible specific capacity was increased from 85mAh/g to162mAh/g. What’s more, when the Mo doped Li2NiTiO4 was composited with carbon, the conductivities was improved and the reversible specific capacity further increased to 210mAh/g.