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Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes
To achieve superior lithium storage performance, SiO(x) is usually designed into nanostructured SiO(x)/C composites by complex or expensive methods. Here, micron-sized interconnected SiO(x)/N-doped carbon (NC) microspheres composed of evenly dispersed SiO(x) nano-domains and NC have been fabricated...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057273/ https://www.ncbi.nlm.nih.gov/pubmed/35517556 http://dx.doi.org/10.1039/d0ra07029g |
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author | Liu, Dajin Jiang, Zhipeng Zhang, Wei Ma, Jingqi Xie, Jia |
author_facet | Liu, Dajin Jiang, Zhipeng Zhang, Wei Ma, Jingqi Xie, Jia |
author_sort | Liu, Dajin |
collection | PubMed |
description | To achieve superior lithium storage performance, SiO(x) is usually designed into nanostructured SiO(x)/C composites by complex or expensive methods. Here, micron-sized interconnected SiO(x)/N-doped carbon (NC) microspheres composed of evenly dispersed SiO(x) nano-domains and NC have been fabricated by a scalable microemulsion method and following pyrolysis, using vinyltriethoxysilane and chitosan as precursors. The unique structure of the micron-sized SiO(x)/NC spheres leads to enhanced structural integrity and enables stable long-term cycling (800 cycles at 2 A g(−1)). Benefiting from the enhanced electron/Li(+) diffusion kinetics originated from the unique structure and N-doping, SiO(x)/NC-2 presents considerable capacitive-controlled Li storage capacity, which leads to outstanding rate capability. Consequently, the assembled SiO(x)/NC-2//LiFePO(4) full cell exhibits superior rate capability (106 mA h g(−1) at 4C) and stable long-term cycling at 2C (102 mA h g(−1) after 350 cycles). This work opens a new door for the application of chitosan in building micron-sized high-performance SiO(x)/C anode materials, and to some extent facilitates the recycling of waste seafood shells. |
format | Online Article Text |
id | pubmed-9057273 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90572732022-05-04 Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes Liu, Dajin Jiang, Zhipeng Zhang, Wei Ma, Jingqi Xie, Jia RSC Adv Chemistry To achieve superior lithium storage performance, SiO(x) is usually designed into nanostructured SiO(x)/C composites by complex or expensive methods. Here, micron-sized interconnected SiO(x)/N-doped carbon (NC) microspheres composed of evenly dispersed SiO(x) nano-domains and NC have been fabricated by a scalable microemulsion method and following pyrolysis, using vinyltriethoxysilane and chitosan as precursors. The unique structure of the micron-sized SiO(x)/NC spheres leads to enhanced structural integrity and enables stable long-term cycling (800 cycles at 2 A g(−1)). Benefiting from the enhanced electron/Li(+) diffusion kinetics originated from the unique structure and N-doping, SiO(x)/NC-2 presents considerable capacitive-controlled Li storage capacity, which leads to outstanding rate capability. Consequently, the assembled SiO(x)/NC-2//LiFePO(4) full cell exhibits superior rate capability (106 mA h g(−1) at 4C) and stable long-term cycling at 2C (102 mA h g(−1) after 350 cycles). This work opens a new door for the application of chitosan in building micron-sized high-performance SiO(x)/C anode materials, and to some extent facilitates the recycling of waste seafood shells. The Royal Society of Chemistry 2020-10-20 /pmc/articles/PMC9057273/ /pubmed/35517556 http://dx.doi.org/10.1039/d0ra07029g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Liu, Dajin Jiang, Zhipeng Zhang, Wei Ma, Jingqi Xie, Jia Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
title | Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
title_full | Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
title_fullStr | Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
title_full_unstemmed | Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
title_short | Micron-sized SiO(x)/N-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
title_sort | micron-sized sio(x)/n-doped carbon composite spheres fabricated with biomass chitosan for high-performance lithium-ion battery anodes |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057273/ https://www.ncbi.nlm.nih.gov/pubmed/35517556 http://dx.doi.org/10.1039/d0ra07029g |
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