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Enhanced Cycling Performance of Nanocrystalline Fe3O4/C as Anode Material for Lithium-Ion Batteries

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Abstract:

Fe3O4-carbon composite was prepared by the sol–gel method. The crystal structure, morphology, and phases present in the product were investigated by X-ray diffraction and by scanning electron microscopy (SEM) combined with energy dispersive X-ray spectroscopy and field-emission SEM. Electrochemical characterization was performed using constant current charge-discharge testing and electrochemical impedance spectroscopy. The Fe3O4/C electrode has high initial columbic efficiency (87%) and outstanding cycling performance (775.3 mAh g−1 after 90 cycles at a current density of 100 mA g−1).

Keywords: FE3O4; LITHIUM-ION BATTERIES; PVA; SOL-GEL

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.4644

Publication date: February 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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