The present work reports a novel emulsion method for preparation of lithium cobalt oxide based on the micro-precipitation of lithium and cobalt salts in molten stearic acid. The precursors consist of micro-aggregated powders of CoOOH and CH3(CH2)16COOLi whose formation depends on the concentration of stearic acid used in the synthesis. The micro-aggregated of CoOOH and CH3(CH2)16COOLi when calcined at 800°C yielded well-crystalline sub-microns particles of LiCoO2 (R-3m) with a very uniform shape (quasi-hexagonal pellets), a very narrow grain size distribution (d 10=0.31, d 50=3.14, d 90=6.30μm) and high specific surface area (7.4m2 g−1). The long life reversible specific capacity of the mp-LiCoO2 composite electrode subsequently made was 110mAhg−1 for initial deinsertion 165mAhg−1.