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Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries
Numerous nanostructured materials have been reported as efficient sulfur hosts to suppress the problematic “shuttling” of lithium polysulfides (LiPSs) in lithium‐sulfur (Li−S) batteries. However, direct comparison of these materials in their efficiency of suppressing LiPSs shuttling is challenging,...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7986775/ https://www.ncbi.nlm.nih.gov/pubmed/33440068 http://dx.doi.org/10.1002/cssc.202002731 |
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author | Xie, Dongjiu Mei, Shilin Xu, Yaolin Quan, Ting Härk, Eneli Kochovski, Zdravko Lu, Yan |
author_facet | Xie, Dongjiu Mei, Shilin Xu, Yaolin Quan, Ting Härk, Eneli Kochovski, Zdravko Lu, Yan |
author_sort | Xie, Dongjiu |
collection | PubMed |
description | Numerous nanostructured materials have been reported as efficient sulfur hosts to suppress the problematic “shuttling” of lithium polysulfides (LiPSs) in lithium‐sulfur (Li−S) batteries. However, direct comparison of these materials in their efficiency of suppressing LiPSs shuttling is challenging, owing to the structural and morphological differences between individual materials. This study introduces a simple route to synthesize a series of sulfur host materials with the same yolk‐shell nanospindle morphology but tunable compositions (Fe(3)O(4), FeS, or FeS(2)), which allows for a systematic investigation into the specific effect of chemical composition on the electrochemical performances of Li−S batteries. Among them, the S/FeS(2)−C electrode exhibits the best performance and delivers an initial capacity of 877.6 mAh g(−1) at 0.5 C with a retention ratio of 86.7 % after 350 cycles. This approach can also be extended to the optimization of materials for other functionalities and applications. |
format | Online Article Text |
id | pubmed-7986775 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-79867752021-03-25 Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries Xie, Dongjiu Mei, Shilin Xu, Yaolin Quan, Ting Härk, Eneli Kochovski, Zdravko Lu, Yan ChemSusChem Full Papers Numerous nanostructured materials have been reported as efficient sulfur hosts to suppress the problematic “shuttling” of lithium polysulfides (LiPSs) in lithium‐sulfur (Li−S) batteries. However, direct comparison of these materials in their efficiency of suppressing LiPSs shuttling is challenging, owing to the structural and morphological differences between individual materials. This study introduces a simple route to synthesize a series of sulfur host materials with the same yolk‐shell nanospindle morphology but tunable compositions (Fe(3)O(4), FeS, or FeS(2)), which allows for a systematic investigation into the specific effect of chemical composition on the electrochemical performances of Li−S batteries. Among them, the S/FeS(2)−C electrode exhibits the best performance and delivers an initial capacity of 877.6 mAh g(−1) at 0.5 C with a retention ratio of 86.7 % after 350 cycles. This approach can also be extended to the optimization of materials for other functionalities and applications. John Wiley and Sons Inc. 2021-02-02 2021-03-05 /pmc/articles/PMC7986775/ /pubmed/33440068 http://dx.doi.org/10.1002/cssc.202002731 Text en © 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers Xie, Dongjiu Mei, Shilin Xu, Yaolin Quan, Ting Härk, Eneli Kochovski, Zdravko Lu, Yan Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries |
title | Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries |
title_full | Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries |
title_fullStr | Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries |
title_full_unstemmed | Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries |
title_short | Efficient Sulfur Host Based on Yolk‐Shell Iron Oxide/Sulfide‐Carbon Nanospindles for Lithium‐Sulfur Batteries |
title_sort | efficient sulfur host based on yolk‐shell iron oxide/sulfide‐carbon nanospindles for lithium‐sulfur batteries |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7986775/ https://www.ncbi.nlm.nih.gov/pubmed/33440068 http://dx.doi.org/10.1002/cssc.202002731 |
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