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Issue 19, 2012
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Sponge-like porous carbon/tin composite anode materials for lithium ion batteries

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Abstract

A novel sponge-like porous C/Sn composite is synthesized by dispersing SnO2 nanoparticles into a soft-template polymer matrix followed by carbonization. The mesoporous C/Sn anodes can deliver a capacity as high as 1300 mAh g−1 after 450 charge/discharge cycles, and provide a capacity of 180 mAh g−1 even at 4000 mA g−1 charge/discharge current density. An extra reversible capacity over the theoretical value of the porous C/Sn anode is observed, which is attributed to the reversible formation/decomposition of the gel-like polymers formed on the mesoporous C/Sn composite due to the catalytic effect of the Sn nanoparticles. The high capacity, long cycle life, high power, ∼100% Coulombic efficiency, and inexpensive production method make the sponge-like porous C/Sn composite an attractive anode material in Li-ion batteries for electric vehicles and renewable energy storage.

Graphical abstract: Sponge-like porous carbon/tin composite anode materials for lithium ion batteries

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Publication details

The article was received on 21 Jan 2012, accepted on 08 Mar 2012 and first published on 09 Mar 2012


Article type: Paper
DOI: 10.1039/C2JM30448A
Citation: J. Mater. Chem., 2012,22, 9562-9567
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    Sponge-like porous carbon/tin composite anode materials for lithium ion batteries

    Y. Xu, J. Guo and C. Wang, J. Mater. Chem., 2012, 22, 9562
    DOI: 10.1039/C2JM30448A

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