Skip to main content

Preparation and electrochemical performance of LiFePO4-xFx/C nanorods by room-temperature solid-state reaction and microwave heating

Journal Article


Abstract


  • LiFePO4−x F x /C nanorods were prepared by room-temperature solid-state reaction and microwave heating. The structure and morphology of the as-prepared materials were analyzed by X-ray diffractometry and transmission electron microscopy. The results shows that the LiFePO4−x F x /C were well crystallized and consisted of nanoparticles with an average diameter of ten to several tens of nanometers, many round grains constituted solid rod-like structure. The length of the rods can be up to several hundreds of nanometers, and their diameters are around 100 nm. The results of electrochemical testing show that the initial discharge capacity of LiFePO3.85F0.15/C is 124.7 mAh g−1, with a negligible fading after 50 cycles at a constant current density of 1 C at room temperature. The capacity retention rate is 99.5 %, which is higher than that of LiFePO4/C prepared by the same method. The doping of F helps improve electrical conductivity and Li+ diffusion of LiFePO4/C. This study may provide new insights and understanding on the effect of F-doping on the electrochemical performance of LiFePO4/C.

Authors


  •   Haung, Yudai (external author)
  •   Jia, Dianzeng (external author)
  •   Guo, Zaiping

Publication Date


  • 2012

Citation


  • Huang, Y., Li, D., Jia, D. & Guo, Z. (2012). Preparation and electrochemical performance of LiFePO4-xFx/C nanorods by room-temperature solid-state reaction and microwave heating. Journal of Nanoparticle Research, 14 (7), 1-5.

Scopus Eid


  • 2-s2.0-84862324310

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5236

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1

End Page


  • 5

Volume


  • 14

Issue


  • 7

Place Of Publication


  • Netherlands

Abstract


  • LiFePO4−x F x /C nanorods were prepared by room-temperature solid-state reaction and microwave heating. The structure and morphology of the as-prepared materials were analyzed by X-ray diffractometry and transmission electron microscopy. The results shows that the LiFePO4−x F x /C were well crystallized and consisted of nanoparticles with an average diameter of ten to several tens of nanometers, many round grains constituted solid rod-like structure. The length of the rods can be up to several hundreds of nanometers, and their diameters are around 100 nm. The results of electrochemical testing show that the initial discharge capacity of LiFePO3.85F0.15/C is 124.7 mAh g−1, with a negligible fading after 50 cycles at a constant current density of 1 C at room temperature. The capacity retention rate is 99.5 %, which is higher than that of LiFePO4/C prepared by the same method. The doping of F helps improve electrical conductivity and Li+ diffusion of LiFePO4/C. This study may provide new insights and understanding on the effect of F-doping on the electrochemical performance of LiFePO4/C.

Authors


  •   Haung, Yudai (external author)
  •   Jia, Dianzeng (external author)
  •   Guo, Zaiping

Publication Date


  • 2012

Citation


  • Huang, Y., Li, D., Jia, D. & Guo, Z. (2012). Preparation and electrochemical performance of LiFePO4-xFx/C nanorods by room-temperature solid-state reaction and microwave heating. Journal of Nanoparticle Research, 14 (7), 1-5.

Scopus Eid


  • 2-s2.0-84862324310

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5236

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 1

End Page


  • 5

Volume


  • 14

Issue


  • 7

Place Of Publication


  • Netherlands