کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1294536 | 973620 | 2008 | 4 صفحه PDF | دانلود رایگان |
Spherical-like LiFePO4 was synthesized by hydrothermal synthesis method using Phenanthroline as a complexing-agent to avoid the Fe(II) ions from oxidation and control the growth of the crystal. Structural, electron valence state, morphology and particle size were investigated by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Mössbauer spectra, scanning electron microscopy (SEM) and laser particle sizer. Charge–discharge cycling performances were used to characterize its electrochemical properties. The sample possesses uniformly distributed spherical-like particles with an average size of 0.5–1 μm. Test shows that the reversible capacity of spherical-like LiFePO4 is about 140 mAh g−1 at 0.1 C. The capacity fading is neglectable.
Journal: Journal of Power Sources - Volume 184, Issue 2, 1 October 2008, Pages 633–636