Improved Electrochemical Cycling Behavior of ZnO-Coated Li[sub 1.05]Al[sub 0.1]Mn[sub 1.85]O[sub 3.95]F[sub 0.05] Spinel at 55°C

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Abstract

We report on electrochemical properties of -coated in nonaqueous lithium-ion cells over a range of at elevated temperature (55°C). A coating process was developed to modify the surface of spinel particles. The -coated by a hydrothermal process as the coating method gave homogeneous distribution of on the surface of particles. The resultant showed superior electrochemical cycling performance at elevated temperature in Li metal employing half-cells. Excellent cyclability was also observed with Li-ion cells adopting graphite as the anode. Possible reasons for the high capacity retention are discussed.

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