Abstract: The layered LiCoO₂ compound, was prepared at low temperatures by calcining a complex precursor at different
temperatures. The details of the synthesis procedure were presented and the physical properties of the synthesized cathode materials were discussed in
the light of structural (XRD). The average particle size of the powder calcined at 700℃ is 60nm, and it is in a narrow range. The charge
and discharge cycling of the cells containing the synthesized oxide as the positive electrode in conjunction with lithium metals and employing a
non-aqueous electrolyte show that LiCoO₂ treated at 700℃ exhibits excellent performances in terms of its high first discharge
capacity (167mAh/g) and cycling stability in 30 cycles (capacity loss of 13.8%).

Key words: LiCoO₂, cathode, soft-chemistry, Li-ion batteries