Preparation and performance study of LiFePO4 and xLiFePO4·yLi3V2(PO4)3

Preparation and performance study of LiFePO4 and xLiFePO4·yLi3V2(PO4)3 LiFePO4/C and xLiFePO4·yLi3V2(PO4)3 composites were successfully prepared by the high-temperature carbon thermal reduction method using LiOH·H2O, Fe2O3, NH4H2PO4, five different compounds (citric acid, polyaniline, carboxymethyl cellulose, E-44 epoxy resin, and tartaric acid), and V2O5 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 LiFePO4/C materials exhibited significantly different polymerization degree, XRD spectra, specific surface area, and particle size distribution. Finally, 9LiFePO4·Li3V2(PO4)3 and LiFePO4/C coated using tartaric acid were shown to exhibit improved electrochemical performance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Preparation and performance study of LiFePO4 and xLiFePO4·yLi3V2(PO4)3

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2263-3
Publisher site
See Article on Publisher Site

Abstract

LiFePO4/C and xLiFePO4·yLi3V2(PO4)3 composites were successfully prepared by the high-temperature carbon thermal reduction method using LiOH·H2O, Fe2O3, NH4H2PO4, five different compounds (citric acid, polyaniline, carboxymethyl cellulose, E-44 epoxy resin, and tartaric acid), and V2O5 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 LiFePO4/C materials exhibited significantly different polymerization degree, XRD spectra, specific surface area, and particle size distribution. Finally, 9LiFePO4·Li3V2(PO4)3 and LiFePO4/C coated using tartaric acid were shown to exhibit improved electrochemical performance.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Sep 16, 2015

References

  • Lithium batteries and cathode materials
    Whittingham, MS
  • Determination of the chemical diffusion coefficient of lithium in LiFePO4
    Prosini, PP; Lisi, M; Zane, D; Pasquali, M
  • Optimization of carbon coatings on LiFePO4
    Doeff, MM; Wilcox, JD; Kostecki, R; Laua, G
  • Carbon nanocoatings for C/LiFePO4 composite cathode
    Molenda, M; Swietoslawski, M; Milewska, A
  • Advanced materials for negative electrodes in Li-polymer batteries
    Zaghib, K; Kinoshita, K

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