Synthesis by a Complexation Route and Characterization of LiCoO_2 Cathode Materials

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 LiGoO2 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%).