Solid state thermal synthesis of lithium cobaltate

The present invention relates to a novel solid state thermal process for the preparation of lithium cobaltate (LiCoO ) useful as a cathode material in nonaqueous, solid state and polymer electrolyte for secondary rock in chair or intercalated batteries. The present invention provides a process for the preparation of lithium cobaltate by a solid state thermal one step process comprising mixing lithium oxide (LiO) and cobalt nitrate (Co(NO)) in solid state uniformly, adding a heat generating material to the mixture and grinding the mixture and heating the ground mixture at a temperature in the range of 650 to 700° C. to obtain the desired lithium cobaltate.