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Influences of Re-Sintering on the Structure and Electrochemical Performance of LiNi1/3Co1/3Mn1/3O2

The influences of re-sintering on the structure and electrochemical performance of LiNi1/3Co1/3Mn1/3O2 were researched in this paper. The synthesized materials were characterized and tested by means of X-ray diffraction (XRD) and electrochemical measurements respectively. It was found that the re-sintered samples with better well-ordered layered structure, more perfect crystallization and more complete crystal structure will be formed with increasing temperature. Moreover, reasonable re-sintering time was required. The materials re-sintered at 860°C for 2h exhibited the best electrochemical performance, including high initial discharge capacity of 150.6 mAh•g-1 and coulomb efficiency of 84% at 0.2C rate.