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Issue 16, 2015
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Interfacial architectures based on a binary additive combination for high-performance Sn4P3 anodes in sodium-ion batteries

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Abstract

We demonstrate the important strategy to design suitable electrolyte systems that make the desirable interfacial structure to allow the reversible sodiation/desodiation of Sn4P3 anodes. Our investigation reveals that the remarkable improvement in the electrochemical performance of Sn4P3 anodes for NIBs is achieved by the combination of fluoroethylene carbonate (FEC) with tris(trimethylsilyl)phosphite (TMSP). We clearly present the unique functions of this binary additive combination to build up a protective surface film on the Sn4P3 anode against unwanted electrolyte decomposition and to prevent the formation of the Na15Sn4 phase, which is accompanied by a large volume expansion during the Na insertion (sodiation) process.

Graphical abstract: Interfacial architectures based on a binary additive combination for high-performance Sn4P3 anodes in sodium-ion batteries

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Publication details

The article was received on 29 Jan 2015, accepted on 02 Mar 2015 and first published on 02 Mar 2015


Article type: Paper
DOI: 10.1039/C5TA00724K
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2015,3, 8332-8338
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    Interfacial architectures based on a binary additive combination for high-performance Sn4P3 anodes in sodium-ion batteries

    J. Y. Jang, Y. Lee, Y. Kim, J. Lee, S. Lee, K. T. Lee and N. Choi, J. Mater. Chem. A, 2015, 3, 8332
    DOI: 10.1039/C5TA00724K

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