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Issue 39, 2016, Issue in Progress
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SnSb/TiO2/C nanocomposite fabricated by high energy ball milling for high-performance lithium-ion batteries

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Abstract

Alloy anodes for Li-ion batteries (LIBs) have attracted great interest due to their high capacity. However, their large volume change during electrochemical lithiation/delithiation causes a poor cycle life, which significantly limits their application. Here we design and fabricate a carbon-coated SnSb/TiO2 nanocomposite via an in situ mechanochemical reduction route, in which a nanostructured SnSb alloy is grown on TiO2 and coated by a layer of conductive carbon. Compared with the SnSb/TiO2 composite or C-coated SnSb alloy, such a C-coated SnSb/TiO2 nanocomposite (SnSb/TiO2/C) shows a higher reversible capacity of 630 mA h gāˆ’1 and better capacity retention (80% over 200 cycles). Our work suggests that the mechanochemical reduction by high energy ball milling can be a powerful method to fabricate alloy anodes with improved cycle stability for addressing the volume change issue.

Graphical abstract: SnSb/TiO2/C nanocomposite fabricated by high energy ball milling for high-performance lithium-ion batteries

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Publication details

The article was received on 21 Dec 2015, accepted on 22 Mar 2016 and first published on 24 Mar 2016


Article type: Paper
DOI: 10.1039/C5RA27326A
Citation: RSC Adv., 2016,6, 32462-32466
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    SnSb/TiO2/C nanocomposite fabricated by high energy ball milling for high-performance lithium-ion batteries

    H. Zhao, W. Qi, X. Li, H. Zeng, Y. Wu, J. Xiang, S. Zhang, B. Li and Y. Huang, RSC Adv., 2016, 6, 32462
    DOI: 10.1039/C5RA27326A

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