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Issue 88, 2018
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A fluoride ion-mediated continuous etching–redeposition strategy to synthesize Si nanocomposites with appropriate SiO2 coating layers for Li-ion batteries

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Abstract

Silicon nanocomposites with surface coating have been promising candidates for high-performance anodes in Li-ion batteries. Here we report a simple yet effective way to synthesize Si@SiO2 nanocomposites with amorphous SiO2 coating through a fluoride ion-mediated continuous etching–redeposition process. The Si@SiO2 nanocomposite anode exhibits significantly improved lithium storage properties, with a reversible capacity of 1356 mA h g−1 at 2.1 A g−1 for 300 cycles.

Graphical abstract: A fluoride ion-mediated continuous etching–redeposition strategy to synthesize Si nanocomposites with appropriate SiO2 coating layers for Li-ion batteries

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Supplementary files

Article information


Submitted
25 Jun 2018
Accepted
24 Sep 2018
First published
24 Sep 2018

Chem. Commun., 2018,54, 12447-12450
Article type
Communication

A fluoride ion-mediated continuous etching–redeposition strategy to synthesize Si nanocomposites with appropriate SiO2 coating layers for Li-ion batteries

X. Fan, J. Zhao, Z. Yang and W. Zhang, Chem. Commun., 2018, 54, 12447
DOI: 10.1039/C8CC05034A

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