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Rapid crystallization of LiFePO4 particles by facile emulsion-mediated solvothermal synthesis

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2012
Authors
Jugović, Dragana
Mitrić, Miodrag
Kuzmanović, Maja
Cvjetićanin, Nikola
Marković, Smilja
Škapin, Srečo Davor
Uskoković, Dragan
Article (Published version)
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Abstract
Lithium iron phosphate powders were obtained by solvothermal treatments of quaternary emulsions Triton X-100/cyclohexane/n-hexanol/water at low temperature (180 °C), with or without stirring. Such synthesis conditions allowed for fast crystallization of pure olivine-type LiFePO4 powder, evidenced by the X-ray powder diffraction measurements and energy dispersive spectroscopy. It has been found that stirring drastically changes the morphology of LiFePO4 particles, causing a preferential crystal orientation. Also, a great difference in the morphology was demonstrated by field emission scanning electron microscopy. The powder obtained after only half an hour of the dynamic solvothermal treatment, without additional post annealing, and without carbon coating, was electrochemically active, showing the discharge capacity of 115 mAh g− 1.
Keywords:
lithium iron phosphate / LiFePO4 / electrode materials / X-ray diffraction / scanning electron microscopy
Source:
Powder Technology, 2012, 128-134
Publisher:
  • Elsevier
Projects:
  • Molecular designing of nanoparticles with controlled morphological and physicochemical characteristics and functional materials based on them (RS-45004)

DOI: 10.1016/j.powtec.2011.12.028

ISSN: 0032-5910

WoS: 000301310400017

Scopus: 2-s2.0-84856431744
[ Google Scholar ]
12
12
URI
http://dais.sanu.ac.rs/123456789/471
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences SASA

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