Synthesis of Ultrafine LiCoO 2 Powders by Spray Drying Method

A novel technique was studied to prepare cathode materials for lithium ion battery Ultrafine LiCoO 2 powders were synthesized by a spray drying method DTA/TGA were employed to analyze the mixed powders XRD results show that the prepared LiCoO 2 is HT LiCoO 2 which has α NaFeO 2 structure type SEM photographs show that the powders are homogeneous with grain size of hundreds of nanometer Electrochemical property experiments testify that the powders have excellent electrochemical properties with initial charge capacity of 148mAh/g and discharge capacity of 135mAh/g Its prospect of industrialization is attractive