Abstract
Layered LiNi0.6Co0.2Mn0.2O2 materials were synthesized at different sintering temperatures using spray-drying precursor with molar ratio of Li/Me=1.04 (Me = transition metals). The influences of sintering temperature on crystal structure, morphology and electrochemical performance of LiNi0.6Co0.2Mn0.2O2 materials have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and charge–discharge test. As a result, material synthesized at 850°C has excellent electrochemical performance, delivering an initial discharge capacity of 173.1mAhg−1 between 2.8 and 4.3V at a current density of 16mAg−1 and exhibiting good cycling performance.
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