Synthesis and electrochemical characterization of LiCo1/3Ni1/3Mn1/3O2 by radiated polymer gel method
2007
Wen, J. W. | Liu, H. J. | Wu, H. | Chen, C. H.
Layered LiCo₁/₃Ni₁/₃Mn₁/₃O₂ as a lithium insertion positive-electrode material was prepared by a radiated polymer gel method. The synthesis conditions and microstructure, morphology and electrochemical properties of the products were investigated by XRD, SEM and electrochemical cell cycling. It was found that the positive-electrode material annealed at 950 °C showed the best electrochemical property with the first specific discharge capacity of 178 mAh/g at C/6 and stable cycling ability between 2.8 and 4.5 V versus Li/Li⁺. The optimized LiCo₁/₃Ni₁/₃Mn₁/₃O₂ exhibited rather good rate capability with the specific capacity of 173 mAh/g at 0.2C and 116 mAh/g at 4C under a fast charge and discharge mode in rate performance test.
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