A THEMAL PROCESS FOR THE PREPARATION OF LITHIUM COBALT NICKELETE (LIC(LiCO0.5 Ni0.5O2 ) USEFUL AS CATHODE MATERIAL FOR LITHIUM CELLS

摘要

The present invention relates to a thermal process for the preparation of LiCoo.5Ni0.5O2 useful as cathode material for reversible lithium ion cells. The lithium cobalt nickelete is a composite which is very useful for high voltage lithium reversible cells and can be prepared by mixing oxides of cobalt, nickel with lithium hydroxide by heating together all in solid state condition. LiCoo.5Ni0.5O2 is a reversible cathode material useful for high voltage cells of lithium in non-aqueous solid state and polymer based cells. A novel method of preparing this compound viz, LiCoo.5Ni0.5O2 was carried out by uniform mixing of oxides of Co and Ni with LiOH and this mixture was made into a paste by adding necessary quantity of glycerol and the paste was calcined at 750°C continuously for 12 hours in a furnace.