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High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries

Silicon-based photovoltaic technology is helpful in reducing the cost of power generation; however, it suffers from economic losses and environmental pollution caused by silicon cutting waste. Herein, a hydrothermal method accompanied by heat treatment is proposed to take full advantage of the photo...

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Autores principales: Ji, Hengsong, Li, Jun, Li, Sheng, Cui, Yingxue, Liu, Zhijin, Huang, Minggang, Xu, Chun, Li, Guochun, Zhao, Yan, Li, Huaming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415209/
https://www.ncbi.nlm.nih.gov/pubmed/36014739
http://dx.doi.org/10.3390/nano12162875
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author Ji, Hengsong
Li, Jun
Li, Sheng
Cui, Yingxue
Liu, Zhijin
Huang, Minggang
Xu, Chun
Li, Guochun
Zhao, Yan
Li, Huaming
author_facet Ji, Hengsong
Li, Jun
Li, Sheng
Cui, Yingxue
Liu, Zhijin
Huang, Minggang
Xu, Chun
Li, Guochun
Zhao, Yan
Li, Huaming
author_sort Ji, Hengsong
collection PubMed
description Silicon-based photovoltaic technology is helpful in reducing the cost of power generation; however, it suffers from economic losses and environmental pollution caused by silicon cutting waste. Herein, a hydrothermal method accompanied by heat treatment is proposed to take full advantage of the photovoltaic silicon cutting waste and biomass excrementum bombycis to fabricate flake-like porous Si@C (FP-Si@C) composite anodes for lithium-ion batteries (LIBs). The resulting FP-Si@C composite with a meso-macroporous structure can buffer the severe volume changes and facilitate electrolyte penetration. Meanwhile, the slightly graphitic carbon with high electrical conductivity and mechanical strength tightly surrounds the Si nanoflakes, which not only contributes to the ion/electron transport but also maintains the electrode structural integrity during the repeated lithiation/delithiation process. Accordingly, the synergistic effect of the unique structure of FP-Si@C composite contributes to a high discharge specific capacity of 1322 mAh g(−1) at 0.1 A g(−1), superior cycle stability with a capacity retention of 70.8% after 100 cycles, and excellent rate performance with a reversible capacity of 406 mAh g(−1) at 1.0 A g(−1). This work provides an easy and cost-effective approach to achieving the high-value application of photovoltaic silicon cutting waste, as well as obtaining high-performance Si-based anodes for LIBs.
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spelling pubmed-94152092022-08-27 High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries Ji, Hengsong Li, Jun Li, Sheng Cui, Yingxue Liu, Zhijin Huang, Minggang Xu, Chun Li, Guochun Zhao, Yan Li, Huaming Nanomaterials (Basel) Article Silicon-based photovoltaic technology is helpful in reducing the cost of power generation; however, it suffers from economic losses and environmental pollution caused by silicon cutting waste. Herein, a hydrothermal method accompanied by heat treatment is proposed to take full advantage of the photovoltaic silicon cutting waste and biomass excrementum bombycis to fabricate flake-like porous Si@C (FP-Si@C) composite anodes for lithium-ion batteries (LIBs). The resulting FP-Si@C composite with a meso-macroporous structure can buffer the severe volume changes and facilitate electrolyte penetration. Meanwhile, the slightly graphitic carbon with high electrical conductivity and mechanical strength tightly surrounds the Si nanoflakes, which not only contributes to the ion/electron transport but also maintains the electrode structural integrity during the repeated lithiation/delithiation process. Accordingly, the synergistic effect of the unique structure of FP-Si@C composite contributes to a high discharge specific capacity of 1322 mAh g(−1) at 0.1 A g(−1), superior cycle stability with a capacity retention of 70.8% after 100 cycles, and excellent rate performance with a reversible capacity of 406 mAh g(−1) at 1.0 A g(−1). This work provides an easy and cost-effective approach to achieving the high-value application of photovoltaic silicon cutting waste, as well as obtaining high-performance Si-based anodes for LIBs. MDPI 2022-08-21 /pmc/articles/PMC9415209/ /pubmed/36014739 http://dx.doi.org/10.3390/nano12162875 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ji, Hengsong
Li, Jun
Li, Sheng
Cui, Yingxue
Liu, Zhijin
Huang, Minggang
Xu, Chun
Li, Guochun
Zhao, Yan
Li, Huaming
High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries
title High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries
title_full High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries
title_fullStr High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries
title_full_unstemmed High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries
title_short High-Value Utilization of Silicon Cutting Waste and Excrementum Bombycis to Synthesize Silicon–Carbon Composites as Anode Materials for Li-Ion Batteries
title_sort high-value utilization of silicon cutting waste and excrementum bombycis to synthesize silicon–carbon composites as anode materials for li-ion batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9415209/
https://www.ncbi.nlm.nih.gov/pubmed/36014739
http://dx.doi.org/10.3390/nano12162875
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