Conductive Polymer Coated Layered Double Hydroxide as a Novel Sulfur Reservoir for Flexible Lithium-Sulfur Batteries.

Dong, H; Qi, S; Wang, L; Chen, X; Xiao, Y; Wang, Y; Sun, B; Wang, G; Chen, S

Conductive Polymer Coated Layered Double Hydroxide as a Novel Sulfur Reservoir for Flexible Lithium-Sulfur Batteries.

Dong, H Qi, S Wang, L Chen, X Xiao, Y Wang, Y Sun, B

Wang, G

Chen, S

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: Small, 2023, 19, (30), pp. e2300843
Issue Date:: 2023-07

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Field	Value	Language
dc.contributor.author	Dong, H
dc.contributor.author	Qi, S
dc.contributor.author	Wang, L
dc.contributor.author	Chen, X
dc.contributor.author	Xiao, Y
dc.contributor.author	Wang, Y
dc.contributor.author	Sun, B https://orcid.org/0000-0002-4365-486X
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.contributor.author	Chen, S
dc.date.accessioned	2024-03-14T03:45:12Z
dc.date.available	2024-03-14T03:45:12Z
dc.date.issued	2023-07
dc.identifier.citation	Small, 2023, 19, (30), pp. e2300843
dc.identifier.issn	1613-6810
dc.identifier.issn	1613-6829
dc.identifier.uri	http://hdl.handle.net/10453/176693
dc.description.abstract	Lithium-sulfur battery (LSB) is widely regarded as the most promising next-generation energy storage system owing to its high theoretical capacity and low cost. However, the practical application of LSBs is mainly hampered by the low electronic conductivity of the sulfur cathode and the notorious "shuttle effect", which lead to high voltage polarization, severe over-charge behavior, and rapid capacity decay. To address these issues, a novel sulfur reservoir is synthesized by coating polypyrrole (PPy) thin film on hollow layered double hydroxide (LDH) (PPy@LDH). After compositing with sulfur, such PPy@LDH-S cathode shows a multi-functional effect to reserve lithium polysulfides (LiPSs). In addition, the unique architecture provides sufficient inner space to encapsulate the volume expansion and enhances the reaction kinetics of sulfur-based redox chemistry. Theoretical calculations have illustrated that the PPy@LDH has shown stronger chemical adsorption capability for LiPSs than those of porous carbon and LDH, preventing the shuttling of LiPSs and enhancing the nucleation affinity of liquid-solid conversion. As a result, the PPy@LDH-S electrode delivers a stable cycling performance and a superior rate capability. Flexible battery has demonstrated this PPy@LDH-S electrode can work properly with treatments of bending, folding, and even twisting, paving the way for wearable devices and flexible electronics.
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/FT220100561
dc.relation.ispartof	Small
dc.relation.isbasedon	10.1002/smll.202300843
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Conductive Polymer Coated Layered Double Hydroxide as a Novel Sulfur Reservoir for Flexible Lithium-Sulfur Batteries.
dc.type	Journal Article
utslib.citation.volume	19
utslib.location.activity	Germany
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	2024-03-14T03:45:10Z
pubs.issue	30
pubs.publication-status	Published
pubs.volume	19
utslib.citation.issue	30

Abstract:

Lithium-sulfur battery (LSB) is widely regarded as the most promising next-generation energy storage system owing to its high theoretical capacity and low cost. However, the practical application of LSBs is mainly hampered by the low electronic conductivity of the sulfur cathode and the notorious "shuttle effect", which lead to high voltage polarization, severe over-charge behavior, and rapid capacity decay. To address these issues, a novel sulfur reservoir is synthesized by coating polypyrrole (PPy) thin film on hollow layered double hydroxide (LDH) (PPy@LDH). After compositing with sulfur, such PPy@LDH-S cathode shows a multi-functional effect to reserve lithium polysulfides (LiPSs). In addition, the unique architecture provides sufficient inner space to encapsulate the volume expansion and enhances the reaction kinetics of sulfur-based redox chemistry. Theoretical calculations have illustrated that the PPy@LDH has shown stronger chemical adsorption capability for LiPSs than those of porous carbon and LDH, preventing the shuttling of LiPSs and enhancing the nucleation affinity of liquid-solid conversion. As a result, the PPy@LDH-S electrode delivers a stable cycling performance and a superior rate capability. Flexible battery has demonstrated this PPy@LDH-S electrode can work properly with treatments of bending, folding, and even twisting, paving the way for wearable devices and flexible electronics.

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http://hdl.handle.net/10453/176693