A Comparative Study of LiMn 2 0 4 From Various Sources

A process recently developed at Arthur D. Little, Inc. has enabled the direct and rapid production of LiMO x intercalation cathode materials having specific and controlled geometric and topographic attributes. Results of a comparative study of the electrochemical and spectroscopic characteristics of LiMn 2 0 4 from several commercial sources and LiMn 2 0 4 prepared using our process are reported. Improved electrochemical performance observed for the LiMn 2 0 4 cathode material produced using ADL's process are tentatively related to the small and uniform grain size and to the possible additional influence of electronic defects associated with surface states.