Yolk-Shell Structured Sulfur Composite Cathode with Enhanced Electrochemical Performance for Lithium-Sulfur Battery

Tang, K; Xiao, J; Long, M; Chen, J; Gao, H; Liu, H

Yolk-Shell Structured Sulfur Composite Cathode with Enhanced Electrochemical Performance for Lithium-Sulfur Battery

Tang, K Xiao, J Long, M Chen, J Gao, H Liu, H

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Publisher:: Thomas Telford Ltd.
Publication Type:: Journal Article
Citation:: Surface Innovations, 2021, 10, (3), pp. 1-7
Issue Date:: 2021-01-01

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Field	Value	Language
dc.contributor.author	Tang, K
dc.contributor.author	Xiao, J
dc.contributor.author	Long, M
dc.contributor.author	Chen, J
dc.contributor.author	Gao, H
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472
dc.date.accessioned	2022-03-27T23:18:12Z
dc.date.available	2022-03-27T23:18:12Z
dc.date.issued	2021-01-01
dc.identifier.citation	Surface Innovations, 2021, 10, (3), pp. 1-7
dc.identifier.issn	2050-6252
dc.identifier.issn	2050-6260
dc.identifier.uri	http://hdl.handle.net/10453/155616
dc.description.abstract	Lithium-sulfur batteries (LSBs) are suffered from the unavoidable "shuttle effects"of lithium polysulfides (LPS) and the infinite volume change of the sulfur. Herein, we prepared a yolk-shell structured N-doped carbon nanotubes/sulfur/poly(3,4-ethylenedioxythiophene) nanotubes (N-CNTs/S@PEDOT) composite as cathode for LSBs. The yolk-shell structure with void spaces can effectively buffer the volume expansion of sulfur, while the outer "shell"can act as a physical barrier to minimize the "shuttle effects"of LPS. Moreover, the N-CNTs with high conductivity and superior structural stability are able to improve the electron transfer efficiency and cycling performance. Therefore, the specially designed yolk-shell structured N-CNTs/S@PEDOT composite cathode exhibits an extraordinary rate performance and enhanced cycling stability (602 mAh g-1 after 200 cycles at 0.1 C).
dc.language	en
dc.publisher	Thomas Telford Ltd.
dc.relation.ispartof	Surface Innovations
dc.relation.isbasedon	10.1680/jsuin.21.00053
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Yolk-Shell Structured Sulfur Composite Cathode with Enhanced Electrochemical Performance for Lithium-Sulfur Battery
dc.type	Journal Article
utslib.citation.volume	10
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access	*
dc.date.updated	2022-03-27T23:18:10Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	10
utslib.citation.issue	3

Abstract:

Lithium-sulfur batteries (LSBs) are suffered from the unavoidable "shuttle effects"of lithium polysulfides (LPS) and the infinite volume change of the sulfur. Herein, we prepared a yolk-shell structured N-doped carbon nanotubes/sulfur/poly(3,4-ethylenedioxythiophene) nanotubes (N-CNTs/S@PEDOT) composite as cathode for LSBs. The yolk-shell structure with void spaces can effectively buffer the volume expansion of sulfur, while the outer "shell"can act as a physical barrier to minimize the "shuttle effects"of LPS. Moreover, the N-CNTs with high conductivity and superior structural stability are able to improve the electron transfer efficiency and cycling performance. Therefore, the specially designed yolk-shell structured N-CNTs/S@PEDOT composite cathode exhibits an extraordinary rate performance and enhanced cycling stability (602 mAh g-1 after 200 cycles at 0.1 C).

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http://hdl.handle.net/10453/155616