One-pot preparation of LiFePO₄／C composites / Juan Wang, Ji-Yu Li, Zhong-Bao Shao, Hong-Tao Fan, Hong-Qiang Ru, Shu-Yan Zang
p. 281-286 ; 29 cm
수록자료: Korean journal of chemical engineering. Korean Institute of Chemical Engineers. Vol.36 No.2(2019 February), p. 281-286 36:2<281 ISSN 0256-1115 저자: Juan Wang, Shenyang University of Chemical Technology 저자: Ji-Yu Li, Shenyang University of Chemical Technology 저자: Zhong-Bao Shao, School of Sciences, Northeastern University 저자: Hong-Tao Fan, Shenyang University of Chemical Technology 저자: Hong-Qiang Ru, School of Materials and Metallurgy, Northeastern University 저자: Shu-Yan Zang, Shenyang University of Chemical Technology
A convenient one-pot method, called high-temperature high-energy mechanical force (HTHEMF), was successfully developed for the preparation of LiFePO4/C composites. Upon the combination of high-temperature with high-energy mechanical force, the whole synthesis process of this method is very simple and only involves two steps, the precursor preparation and the calcination step. The results of XRD, SEM, BET and electrochemical performance tests indicated that after calcination at 600 °C for 9 h, the LiFePO₄/C composites have the best properties. The discharge capacity of the composites was 150.3mA h g⁻¹ at 0.1 C. After 30 cycles test, the reversible capacity was 147 mA h g⁻¹ and the retention ratio to the initial capacity was 97.8%. The results indicated that LiFePO₄/C composites with good properties can be obtained by one-pot HTHEMF method.