Cargando…

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,...

Descripción completa

Detalles Bibliográficos
Autores principales: Xie, Dongjiu, Mei, Shilin, Xu, Yaolin, Quan, Ting, Härk, Eneli, Kochovski, Zdravko, Lu, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
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
_version_ 1783668509876682752
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
work_keys_str_mv AT xiedongjiu efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries
AT meishilin efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries
AT xuyaolin efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries
AT quanting efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries
AT harkeneli efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries
AT kochovskizdravko efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries
AT luyan efficientsulfurhostbasedonyolkshellironoxidesulfidecarbonnanospindlesforlithiumsulfurbatteries