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Spherical Li(Ni_(1/3)Mn_(1/3)Co_(1/3))O_2 was prepared via the homogenous precursors produced by solution spray-drying method. The precursors were sintered at different temperatures between 600 and 1 000 ℃ for 10 h. The impacts of different sintering temperatures on the structure and electrochemical performances of Li(Ni_(1/3)Mn_(1/3)Co_(1/3))O_2 were compared by means of X-ray diffractometry(XRD), scanning electron microscopy(SEM), and charge/discharge test as cathode materials for lithium ion batteries. The experimental results show that the spherical morphology of the spray-dried powers maintains during the subsequent heat treatment and the specific capacity increases with rising sintering temperature. When the sintering temperature rises up to 900 ℃ , Li(Ni_(1/3)Mn_(1/3)Co_(1/3))O_2 attains a reversible capacity of 153 mA·h/g between 3.00 and 4.35 V at 0.2C rate with excellent cyclability.
Spherical Li (Ni_ (1/3) Mn_ (1/3) Co_ (1/3)) O_2 was prepared via the homogenous precursors produced by solution spray-drying method. The precursors were sintered at different temperatures between 600 and 1000 ℃ for 10 h. The impacts of different sintering temperatures on the structure and electrochemical performances of Li (Ni_ (1/3) Mn_ (1/3) Co_ (1/3)) O_2 were compared by means of X-ray diffractometry ), scanning electron microscopy (SEM), and charge / discharge test as cathode materials for lithium ion batteries. The experimental results show that the spherical morphology of the spray-dried power maintains during the subsequent heat treatment and the specific capacity increases with set sintering When the sintering temperature rises to 900 ° C, Li (Ni 1/3 (1/3) Mn 1/3 (1/3) Co 1/3) O 2 attains a reversible capacity of 153 mA · h / g between 3.00 and 4.35 V at 0.2C rate with excellent cyclability.