Synthesis of LiFePO4 Cathode Materials by a Chemical Method
The olivine-type LiFePO4 powder was prepared by a chemical method using the synthesized FePO4 1.78H2O, LiOH, citric acid and PEG as raw materials. The synthesized FePO4 1.78H2O precursor powder was obtained by co-precipitation method. LiFePO4 powder was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermo-gravimetric analysis (TGA)/differential scanning calorimetry (DSC). The results showed that the calcined LiFePO4 was in a single phase when fabricated by using the synthesized FePO4 1.78H2O powder at pH of 3.5 in argon atmosphere.
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Y. Sun et al., "Synthesis of LiFePO4 Cathode Materials by a Chemical Method", Advanced Materials Research, Vols. 197-198, pp. 1049-1052, 2011