• DOI:10.13171/mjc.3.5.2014.11.08.10.36/ghazi
• Corpus ID: 56223261

Laser irradiation effects on ultrafine carbon-coated LiFePO4 using a modified solid state synthesis and olive oil as carbon source

@article{Amor2014LaserIE,
  title={Laser irradiation effects on ultrafine carbon-coated LiFePO4 using a modified solid state synthesis and olive oil as carbon source},
  author={Ghazi Ben Amor and Noureddine Amdouni and Habib Boughzala and Jean Marc Greneche},
  journal={Mediterranean Journal of Chemistry},
  year={2014},
  volume={3},
  pages={1053-1063}
}

• G. Amor, N. Amdouni, +1 author J. Greneche
• Published 8 November 2014
• Materials Science
• Mediterranean Journal of Chemistry

Nano-size LiFePO4/C composite was synthesized via a modified solid state reaction method. Olive oil is used as carbon source. The conventional solid state process was modified by introducing two initial steps of slurry phase blending of the ingredients and solvent removal by rotary evaporation, so as to get an intimate mixing and homogenous dispersion of reactants and conductive carbon in the sample. Both structure and morphology of the LiFePO4/C composite sample have been characterized by X-ray diffraction (XRD), Mossbauer spectrometry, transmission electron microscopy (TEM) and Raman spectroscopy. The LiFePO4/C composite exhibited a high crystallinity. The particles of synthesized LiFePO4/C were fine and homogeneous in size, with an average diameter of 100nm. Since the thermal effect of laser irradiation may possibly alter material surface, particular attention has been paid in characterizing the structure and component of the material surface by Raman spectroscopy. Electrochemical measurements show that the LiFePO4/C composite cathode delivers an initial discharge capacity of 146 mAh g−1 between 2.5 and 4.3Vat a C/10 rate (a charger rated C/10 would return the battery capacity in 10 hours).