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Synthesis and characterization of high-voltage cathode material LiNi0.5Mn1.5O4 by one-step solid-state reaction

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Abstract

LiNi0.5Mn1.5O4 was prepared under various conditions by one-step solid-state reaction in air and its properties were investigated by X-ray diffractormetry (XRD), scanning electron microscopy (SEM) and electrochemical measurement. XRD patterns show that LiNi0.5Mn1.5O4 synthesized under various conditions has cubic spinel structure. SEM images exhibit that the particle size increases with increasing calcination temperature and time. Electrochemical test shows that the LiNi0.5Mn1.5O4 calcined at 700 °C for 24 h delivers up to 143 mA · h/g, and the capacity retains 132 mA · h/g after 30 cycles.

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Authors and Affiliations

  1. School of Metallurgical Science and Engineering, Central South University, 410083, Changsha, China

    Wang Zhi-xing PhD (Associate professor), Fang Hai-sheng, Yin Zhou-lan, Li Xin-hai, Guo Hua-jun & Peng Wen-jie

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  1. Wang Zhi-xing PhD
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  2. Fang Hai-sheng
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  3. Yin Zhou-lan
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  4. Li Xin-hai
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  5. Guo Hua-jun
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  6. Peng Wen-jie
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Correspondence to Wang Zhi-xing PhD.

Additional information

Foundation item: Project (76600) supported by Postdoctoral Science Foundation of Central South University

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Wang, Zx., Fang, Hs., Yin, Zl. et al. Synthesis and characterization of high-voltage cathode material LiNi0.5Mn1.5O4 by one-step solid-state reaction. J Cent. South Univ. Technol. 12 (Suppl 1), 54–58 (2005). https://doi.org/10.1007/s11771-005-0371-8

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  • DOI: https://doi.org/10.1007/s11771-005-0371-8

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