Journal
RSC ADVANCES
Volume 6, Issue 92, Pages 89715-89720Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra19387k
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Funding
- Natural Science Foundation of China [51622703, 21503084]
- 973 Program [2015CB258400]
- National Thousand Talents Program of China
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Fe3O4/FeO/Fe nanoparticles coated with amorphous carbon are prepared via a facile and scalable in situreduction solid synthesis route as high-performance anode material for lithium ion batteries (LIBs). The amorphous carbon coating is produced by carbonization of glucose in the precursor, leading to partial reduction of Fe3+ in situ and a tight intermolecular contact between Fe3O4/FeO/Fe nanoparticles and the carbon layer. The formation of Fe in the composite dramatically increases the conductivity of the electrode, making a significant contribution to the enhancement of electrochemical performance. When used as anode materials in lithium ion batteries, the as-prepared Fe3O4/FeO/Fe/C composite shows super high rate capability (685, 545, and 407 mA h g(-1) at 2, 5, and 10C, respectively, 1C = 1 A g(-1)) and excellent cycling performance (900 mA h g(-1) after 500 cycles at 1C).
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