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Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity

Sodium-ion batteries (SIBs) are promising candidates for large-scale energy storage. Increasing the energy density of SIBs demands anode materials with high gravimetric and volumetric capacity. To overcome the drawback of low density of conventional nanosized or porous electrode materials, compact h...

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Autores principales: Hu, Zhikun, Chen, Zerui, Liu, Qianqian, Zhao, Wei, Xu, Yifei, Wu, Hao Bin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10173603/
https://www.ncbi.nlm.nih.gov/pubmed/37182107
http://dx.doi.org/10.1016/j.isci.2023.106642
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author Hu, Zhikun
Chen, Zerui
Liu, Qianqian
Zhao, Wei
Xu, Yifei
Wu, Hao Bin
author_facet Hu, Zhikun
Chen, Zerui
Liu, Qianqian
Zhao, Wei
Xu, Yifei
Wu, Hao Bin
author_sort Hu, Zhikun
collection PubMed
description Sodium-ion batteries (SIBs) are promising candidates for large-scale energy storage. Increasing the energy density of SIBs demands anode materials with high gravimetric and volumetric capacity. To overcome the drawback of low density of conventional nanosized or porous electrode materials, compact heterostructured particles are developed in this work with improved Na storage capacity by volume, which are composed of SnO(2) nanoparticles loaded into nanoporous TiO(2) followed by carbon coating. The resulted TiO(2)@SnO(2)@C (denoted as TSC) particles inherit the structural integrity of TiO(2) and extra capacity contribution from SnO(2), delivering a volumetric capacity of 393 mAh cm(−3) notably higher than that of porous TiO(2) and commercial hard carbon. The heterogeneous interface between TiO(2) and SnO(2) is believed to promote the charge transfer and facilitate the redox reactions in the compact heterogeneous particles. This work demonstrates a useful strategy for electrode materials with high volumetric capacity.
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spelling pubmed-101736032023-05-12 Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity Hu, Zhikun Chen, Zerui Liu, Qianqian Zhao, Wei Xu, Yifei Wu, Hao Bin iScience Article Sodium-ion batteries (SIBs) are promising candidates for large-scale energy storage. Increasing the energy density of SIBs demands anode materials with high gravimetric and volumetric capacity. To overcome the drawback of low density of conventional nanosized or porous electrode materials, compact heterostructured particles are developed in this work with improved Na storage capacity by volume, which are composed of SnO(2) nanoparticles loaded into nanoporous TiO(2) followed by carbon coating. The resulted TiO(2)@SnO(2)@C (denoted as TSC) particles inherit the structural integrity of TiO(2) and extra capacity contribution from SnO(2), delivering a volumetric capacity of 393 mAh cm(−3) notably higher than that of porous TiO(2) and commercial hard carbon. The heterogeneous interface between TiO(2) and SnO(2) is believed to promote the charge transfer and facilitate the redox reactions in the compact heterogeneous particles. This work demonstrates a useful strategy for electrode materials with high volumetric capacity. Elsevier 2023-04-11 /pmc/articles/PMC10173603/ /pubmed/37182107 http://dx.doi.org/10.1016/j.isci.2023.106642 Text en © 2023 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Hu, Zhikun
Chen, Zerui
Liu, Qianqian
Zhao, Wei
Xu, Yifei
Wu, Hao Bin
Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
title Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
title_full Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
title_fullStr Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
title_full_unstemmed Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
title_short Compact TiO(2)@SnO(2)@C heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
title_sort compact tio(2)@sno(2)@c heterostructured particles as anode materials for sodium-ion batteries with improved volumetric capacity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10173603/
https://www.ncbi.nlm.nih.gov/pubmed/37182107
http://dx.doi.org/10.1016/j.isci.2023.106642
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