Anionic Doping in Layered Transition Metal Chalcogenides for Robust Lithium-Sulfur Batteries.

Huang, C; Yu, J; Yue Zhang, C; Cui, Z; He, R; Yang, L; Nan, B; Li, C; Qi, X; Qi, X; Li, J; Yuan Zhou, J; Usoltsev, O; Simonelli, L; Arbiol, J; Lei, Y-J; Sun, Q; Wang, G; Cabot, A

Anionic Doping in Layered Transition Metal Chalcogenides for Robust Lithium-Sulfur Batteries.

Huang, C Yu, J Yue Zhang, C Cui, Z He, R Yang, L Nan, B Li, C Qi, X Qi, X Li, J Yuan Zhou, J Usoltsev, O Simonelli, L Arbiol, J Lei, Y-J Sun, Q Wang, G

Cabot, A

Permalink

Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Angew Chem Int Ed Engl, 2024, pp. e202420488
Issue Date:: 2024-12-17

Closed Access

	Filename	Description	Size
	Angewandte Chemie - 2024 - Huang - Anionic Doping in Layered Transition Metal Chalcogenides for Robust Lithium‐Sulfur.pdf	Accepted version	1.41 MB		View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Huang, C
dc.contributor.author	Yu, J
dc.contributor.author	Yue Zhang, C
dc.contributor.author	Cui, Z
dc.contributor.author	He, R
dc.contributor.author	Yang, L
dc.contributor.author	Nan, B
dc.contributor.author	Li, C
dc.contributor.author	Qi, X
dc.contributor.author	Qi, X
dc.contributor.author	Li, J
dc.contributor.author	Yuan Zhou, J
dc.contributor.author	Usoltsev, O
dc.contributor.author	Simonelli, L
dc.contributor.author	Arbiol, J
dc.contributor.author	Lei, Y-J
dc.contributor.author	Sun, Q
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.contributor.author	Cabot, A
dc.date.accessioned	2025-02-02T23:40:22Z
dc.date.available	2025-02-02T23:40:22Z
dc.date.issued	2024-12-17
dc.identifier.citation	Angew Chem Int Ed Engl, 2024, pp. e202420488
dc.identifier.issn	1433-7851
dc.identifier.issn	1521-3773
dc.identifier.uri	http://hdl.handle.net/10453/184801
dc.description.abstract	Lithium-sulfur batteries (LSBs) are among the most promising next-generation energy storage technologies. However, a slow Li-S reaction kinetics at the LSB cathode limit their energy and power densities. To address these challenges, this study introduces an anionic-doped transition metal chalcogenide as an effective catalyst to accelerate the Li-S reaction. Specifically, a tellurium-doped, carbon-supported bismuth selenide with Se vacancies (Te-Bi2Se3-x@C) is prepared and tested as a sulfur host in LSB cathodes. X-ray absorption and in situ X-ray diffraction analyses reveal that Te doping induces lattice distortions and modulates the local coordination environment and electronic structure of Bi atoms to promote the catalytic activity toward the conversion of polysulfides. Additionally, the generated Se vacancies alter the electronic structure around atomic defect sites, increase the carrier concentration, and activate unpaired cations to effectively trap polysulfides. As a result, LSBs based on Te-Bi2Se3-x@C/S cathodes demonstrate outstanding specific capacities of 1508 mAh ⋅ g-1 at 0.1 C, excellent rate performance with 655 mAh ⋅ g-1 at 5 C, and near-integral cycle stability over 1000 cycles. Furthermore, under high sulfur loading of 6.4 mg ⋅ cm-2, a cathode capacity exceeding 8 mAh ⋅ cm-2 is sustained at 0.1 C current rate, with 6.4 mAh ⋅ cm-2 retained after 300 cycles under lean electrolyte conditions (6.8 μL ⋅ mg-1).
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Wiley
dc.relation.ispartof	Angew Chem Int Ed Engl
dc.relation.isbasedon	10.1002/anie.202420488
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences
dc.subject.classification	Organic Chemistry
dc.subject.classification	34 Chemical sciences
dc.title	Anionic Doping in Layered Transition Metal Chalcogenides for Robust Lithium-Sulfur Batteries.
dc.type	Journal Article
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 Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Clean Energy Technology (CCET)
utslib.copyright.status	closed_access	*
dc.date.updated	2025-02-02T23:40:21Z
pubs.publication-status	Published online

Abstract:

Lithium-sulfur batteries (LSBs) are among the most promising next-generation energy storage technologies. However, a slow Li-S reaction kinetics at the LSB cathode limit their energy and power densities. To address these challenges, this study introduces an anionic-doped transition metal chalcogenide as an effective catalyst to accelerate the Li-S reaction. Specifically, a tellurium-doped, carbon-supported bismuth selenide with Se vacancies (Te-Bi2Se3-x@C) is prepared and tested as a sulfur host in LSB cathodes. X-ray absorption and in situ X-ray diffraction analyses reveal that Te doping induces lattice distortions and modulates the local coordination environment and electronic structure of Bi atoms to promote the catalytic activity toward the conversion of polysulfides. Additionally, the generated Se vacancies alter the electronic structure around atomic defect sites, increase the carrier concentration, and activate unpaired cations to effectively trap polysulfides. As a result, LSBs based on Te-Bi2Se3-x@C/S cathodes demonstrate outstanding specific capacities of 1508 mAh ⋅ g-1 at 0.1 C, excellent rate performance with 655 mAh ⋅ g-1 at 5 C, and near-integral cycle stability over 1000 cycles. Furthermore, under high sulfur loading of 6.4 mg ⋅ cm-2, a cathode capacity exceeding 8 mAh ⋅ cm-2 is sustained at 0.1 C current rate, with 6.4 mAh ⋅ cm-2 retained after 300 cycles under lean electrolyte conditions (6.8 μL ⋅ mg-1).

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/184801