Spherical Li1+x[Ni0.22Co0.13Mn0.65]O2 cathode material for lithium-ion battery was synthesized by co-precipitation method. The mixture of prepared carbonate precursor and lithium carbonate was calcined at 950 oC for 24 hrs in air. The XRD patterns of all the prepared powders show hexagonal α-NaFeO2 structure (space group: R-3m, 166) and existence of Li2MnO3 phase in the composite structure. The morphology of the prepared powders has spherical agglomerates with the particle size varying from 5~8 μm. The observed charge and discharge capacity for the first cycle is 298.5, 219 mAhg-1 for Li1.44Ni0.23Co0.12Mn0.65O2.

Keywords: Lithium secondary battery, Cathode, Co-precipitation