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

Cited 52 time in Web of Science Cited 52 time in Scopus
Authors
Jang, Jun Yeong; Lee, Yongwon; Kim, Youngjin; Lee, Jeongmin; Lee, Sang-Min; Lee, Kyu Tae; Choi, Nam-Soon
Issue Date
2015-04
Citation
Journal of Materials Chemistry A, Vol.3 No.16, pp.8332-8338
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.
ISSN
2050-7488
URI
https://hdl.handle.net/10371/171861
DOI
https://doi.org/10.1039/c5ta00724k
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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