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Issue 5, 2014
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Micro-sized silicon–carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

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Abstract

We report the synthesis of micro-sized silicon–carbon (Si–C) composites, which simultaneously possess primary sub-10 nm Si particles and secondary micro-sized aggregation coated with carbon. Because of this unique structure, the as-synthesized Si–C composite anode can deliver excellent cycling stability with a high reversible specific capacity (∼1600 mA h g−1) within 150 cycles at 400 mA g−1. Moreover, a high volumetric capacity of ∼1088 mA h cm−3 was demonstrated by using this composite cathode, which is 5 times higher than that of commercially available nano-silicon based anodes.

Graphical abstract: Micro-sized silicon–carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

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Publication details

The article was received on 11 Oct 2013, accepted on 19 Nov 2013 and first published on 20 Nov 2013


Article type: Communication
DOI: 10.1039/C3TA14100D
Citation: J. Mater. Chem. A, 2014,2, 1257-1262
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    Micro-sized silicon–carbon composites composed of carbon-coated sub-10 nm Si primary particles as high-performance anode materials for lithium-ion batteries

    J. Song, S. Chen, M. Zhou, T. Xu, D. Lv, M. L. Gordin, T. Long, M. Melnyk and D. Wang, J. Mater. Chem. A, 2014, 2, 1257
    DOI: 10.1039/C3TA14100D

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