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Issue 2, 2014
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N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries

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Abstract

N-doped sites at CNT and graphene trigger spontaneous encapsulation of Si particles by simple pH control at room temperature. Significantly, N-doped CNT encapsulated Si composite electrode materials show remarkable cycle life and rate performance in battery operations. Superior capacity retention of 79.4% is obtained after 200 cycles and excellent rate capability of 914 mA h gāˆ’1 is observed at a 10 C rate.

Graphical abstract: N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries

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Publication details

The article was received on 06 Oct 2013, accepted on 30 Oct 2013 and first published on 04 Nov 2013


Article type: Communication
DOI: 10.1039/C3EE43322F
Citation: Energy Environ. Sci., 2014,7, 621-626
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    N-doped graphitic self-encapsulation for high performance silicon anodes in lithium-ion batteries

    W. J. Lee, T. H. Hwang, J. O. Hwang, H. W. Kim, J. Lim, H. Y. Jeong, J. Shim, T. H. Han, J. Y. Kim, J. W. Choi and S. O. Kim, Energy Environ. Sci., 2014, 7, 621
    DOI: 10.1039/C3EE43322F

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