Streamline Sulfur Redox Reactions to Achieve Efficient Room-Temperature Sodium-Sulfur Batteries.

Lei, Y; Wu, C; Lu, X; Hua, W; Li, S; Liang, Y; Liu, H; Lai, W-H; Gu, Q; Cai, X; Wang, N; Wang, Y-X; Chou, S-L; Liu, H-K; Wang, G; Dou, S-X

Streamline Sulfur Redox Reactions to Achieve Efficient Room-Temperature Sodium-Sulfur Batteries.

Lei, Y Wu, C Lu, X Hua, W Li, S Liang, Y Liu, H Lai, W-H Gu, Q Cai, X Wang, N Wang, Y-X Chou, S-L Liu, H-K Wang, G Dou, S-X

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: Angew Chem Int Ed Engl, 2022, 61, (16), pp. e202200384
Issue Date:: 2022-04-11

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Field	Value	Language
dc.contributor.author	Lei, Y
dc.contributor.author	Wu, C
dc.contributor.author	Lu, X
dc.contributor.author	Hua, W
dc.contributor.author	Li, S
dc.contributor.author	Liang, Y
dc.contributor.author	Liu, H
dc.contributor.author	Lai, W-H
dc.contributor.author	Gu, Q
dc.contributor.author	Cai, X
dc.contributor.author	Wang, N
dc.contributor.author	Wang, Y-X
dc.contributor.author	Chou, S-L
dc.contributor.author	Liu, H-K
dc.contributor.author	Wang, G
dc.contributor.author	Dou, S-X
dc.date.accessioned	2023-03-21T01:02:28Z
dc.date.available	2023-03-21T01:02:28Z
dc.date.issued	2022-04-11
dc.identifier.citation	Angew Chem Int Ed Engl, 2022, 61, (16), pp. e202200384
dc.identifier.issn	1433-7851
dc.identifier.issn	1521-3773
dc.identifier.uri	http://hdl.handle.net/10453/167869
dc.description.abstract	It is vital to dynamically regulate S activity to achieve efficient and stable room-temperature sodium-sulfur (RT/Na-S) batteries. Herein, we report using cobalt sulfide as an electron reservoir to enhance the activity of sulfur cathodes, and simultaneously combining with cobalt single atoms as double-end binding sites for a stable S conversion process. The rationally constructed CoS2 electron reservoir enables the straight reduction of S to short-chain sodium polysulfides (Na2 S4 ) via a streamlined redox path through electron transfer. Meanwhile, cobalt single atoms synergistically work with the electron reservoir to reinforce the streamlined redox path, which immobilize in situ formed long-chain products and catalyze their conversion, thus realizing high S utilization and sustainable cycling stability. The as-developed sulfur cathodes exhibit a superior rate performance of 443 mAh g-1 at 5 A g-1 with a high cycling capacity retention of 80 % after 5000 cycles at 5 A g-1 .
dc.format	Print-Electronic
dc.language	eng
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation	http://purl.org/au-research/grants/arc/DP200101249
dc.relation	http://purl.org/au-research/grants/arc/DP210101389
dc.relation.ispartof	Angew Chem Int Ed Engl
dc.relation.isbasedon	10.1002/anie.202200384
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences
dc.subject.classification	Organic Chemistry
dc.title	Streamline Sulfur Redox Reactions to Achieve Efficient Room-Temperature Sodium-Sulfur Batteries.
dc.type	Journal Article
utslib.citation.volume	61
utslib.location.activity	Germany
utslib.for	03 Chemical Sciences
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-03-21T01:02:22Z
pubs.issue	16
pubs.publication-status	Published
pubs.volume	61
utslib.citation.issue	16

Abstract:

It is vital to dynamically regulate S activity to achieve efficient and stable room-temperature sodium-sulfur (RT/Na-S) batteries. Herein, we report using cobalt sulfide as an electron reservoir to enhance the activity of sulfur cathodes, and simultaneously combining with cobalt single atoms as double-end binding sites for a stable S conversion process. The rationally constructed CoS2 electron reservoir enables the straight reduction of S to short-chain sodium polysulfides (Na2 S4 ) via a streamlined redox path through electron transfer. Meanwhile, cobalt single atoms synergistically work with the electron reservoir to reinforce the streamlined redox path, which immobilize in situ formed long-chain products and catalyze their conversion, thus realizing high S utilization and sustainable cycling stability. The as-developed sulfur cathodes exhibit a superior rate performance of 443 mAh g-1 at 5 A g-1 with a high cycling capacity retention of 80 % after 5000 cycles at 5 A g-1 .

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http://hdl.handle.net/10453/167869