Preparation and performance study of LiFePO and xLiFePO· yLiV(PO).

LiFePO/C and xLiFePO· yLiV(PO) composites were successfully prepared by the high-temperature carbon thermal reduction method using LiOH·HO, FeO, NHHPO, five different compounds (citric acid, polyaniline, carboxymethyl cellulose, E-44 epoxy resin, and tartaric acid), and VO as raw materials. X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), laser particle size analysis, specific surface area measurements, and electrochemical performance testing were used to study their structure, morphology, and electrochemical properties. The results showed that the LiFePO/C materials exhibited significantly different polymerization degree, XRD spectra, specific surface area, and particle size distribution. Finally, 9LiFePO·LiV(PO) and LiFePO/C coated using tartaric acid were shown to exhibit improved electrochemical performance. [ABSTRACT FROM AUTHOR]