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Effects of LiCl template amount on structure, morphology, and electrochemical performance of porous Si@C anodes

Effects of LiCl template amount on structure, morphology, and electrochemical performance of... Porous silicon carbon (Si@C) has been regarded as a promising candidate to overcome volume change of silicon-based anodes. However, the relationship between pore size distribution and properties of porous Si@C materials is not clear. Herein, porous materials with different pore size structures are synthesized by adjusting the proportion of LiCl additives in the template, which is used to study the effect of pore size distribution on the properties of batteries. The results show that the porous Si@C prepared with the content of 10% LiCl templates has the perfect electrochemical comprehensive performance. In addition, we have utilized the density functional theory (DFT) calculation methods to further study the effect of carbon defects on the material properties.Graphical abstract[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Effects of LiCl template amount on structure, morphology, and electrochemical performance of porous Si@C anodes

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References (48)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-022-04526-2
Publisher site
See Article on Publisher Site

Abstract

Porous silicon carbon (Si@C) has been regarded as a promising candidate to overcome volume change of silicon-based anodes. However, the relationship between pore size distribution and properties of porous Si@C materials is not clear. Herein, porous materials with different pore size structures are synthesized by adjusting the proportion of LiCl additives in the template, which is used to study the effect of pore size distribution on the properties of batteries. The results show that the porous Si@C prepared with the content of 10% LiCl templates has the perfect electrochemical comprehensive performance. In addition, we have utilized the density functional theory (DFT) calculation methods to further study the effect of carbon defects on the material properties.Graphical abstract[graphic not available: see fulltext]

Journal

IonicsSpringer Journals

Published: Jun 1, 2022

Keywords: Porous Si@C; Structure; Morphology; Electrochemical performance; DFT calculation

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