Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries

Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batter...

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Autores principales:	Wu Lian, Dai Yongqiang, Zeng Wei, Huang Jintao, Liao Bing, Pang Hao
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	ion transport pathways conductive carbon networks bentonite cathode materials lithium–sulfur batteries Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/9f317e1cb0334fbca7d0880094a07abf
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spelling	oai:doaj.org-article:9f317e1cb0334fbca7d0880094a07abf2021-12-05T14:10:57ZEffective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries2191-909710.1515/ntrev-2021-0005https://doaj.org/article/9f317e1cb0334fbca7d0880094a07abf2021-03-01T00:00:00Zhttps://doi.org/10.1515/ntrev-2021-0005https://doaj.org/toc/2191-9097Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.Wu LianDai YongqiangZeng WeiHuang JintaoLiao BingPang HaoDe Gruyterarticleion transport pathwaysconductive carbon networksbentonitecathode materialslithium–sulfur batteriesTechnologyTChemical technologyTP1-1185Physical and theoretical chemistryQD450-801ENNanotechnology Reviews, Vol 10, Iss 1, Pp 20-33 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ion transport pathways conductive carbon networks bentonite cathode materials lithium–sulfur batteries Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801
spellingShingle	ion transport pathways conductive carbon networks bentonite cathode materials lithium–sulfur batteries Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801 Wu Lian Dai Yongqiang Zeng Wei Huang Jintao Liao Bing Pang Hao Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
description	Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.
format	article
author	Wu Lian Dai Yongqiang Zeng Wei Huang Jintao Liao Bing Pang Hao
author_facet	Wu Lian Dai Yongqiang Zeng Wei Huang Jintao Liao Bing Pang Hao
author_sort	Wu Lian
title	Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
title_short	Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
title_full	Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
title_fullStr	Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
title_full_unstemmed	Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
title_sort	effective ion pathways and 3d conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/9f317e1cb0334fbca7d0880094a07abf
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Effective ion pathways and 3D conductive carbon networks in bentonite host enable stable and high-rate lithium–sulfur batteries

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