Spray-drying process for synthesis of nanosized LiMn2O4 cathode

Nanosized LiMn2O4 cathode material was synthesized by a spray-drying process. The calcined LiMn2O4 powder retained a well-define spinel structure and good crystallization. Electrochemical measurements showed that the nanosized LiMn2O4 reached an initial discharge capacity of 131 mAh.g(-1) at 1/5 C rate and exhibited a good cycling property at 1 C rate. The results indicate that spray-drying method is a promising method suitable for mass production of nanosized LiMn2O4 with improved electrochemical performances and low cost. ((c) 2006 Springer Science + Business Media, Inc.