A review of the rational interfacial designs and characterizations for solid‐state lithium/sulfur cells

Choo, Y; Hwa, Y; Cairns, EJ

A review of the rational interfacial designs and characterizations for solid‐state lithium/sulfur cells

Choo, Y

Hwa, Y Cairns, EJ

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Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Electrochemical Science Advances, 2022, 2, (6)
Issue Date:: 2022-12-12

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Field	Value	Language
dc.contributor.author	Choo, Y https://orcid.org/0000-0003-2715-0618
dc.contributor.author	Hwa, Y
dc.contributor.author	Cairns, EJ
dc.date.accessioned	2023-01-31T23:46:34Z
dc.date.available	2023-01-31T23:46:34Z
dc.date.issued	2022-12-12
dc.identifier.citation	Electrochemical Science Advances, 2022, 2, (6)
dc.identifier.issn	2698-5977
dc.identifier.issn	2698-5977
dc.identifier.uri	http://hdl.handle.net/10453/165710
dc.description.abstract	The high theoretical specific energy of lithium/sulfur (Li/S) cells (2600 Wh/kg) has positioned the Li/S cell as one of the most promising candidates for the beyond lithium-ion cell. Despite the evident advantages, there are remaining problems mainly associated with the unique solution-based reaction chemistry involving lithium polysulfide (Li-PS) that hinder the commercialization of the Li/S cells. Incorporating solid-state electrolytes (SSEs) can avoid the Li-PS shuttle problem while preserving the benefits of Li/S cells, but it introduces other challenges related to the electrode/electrolyte solid interfaces. This topical review summarizes the current status of solid-state Li/S cells and their major challenges and discusses the recent efforts to improve cell performance and durability. Various solid-state electrolytes, including oxides, sulfides, and solid polymer electrolytes, are briefly reviewed. In particular, we focus on the recent progress to improve the interfacial properties by two major approaches, morphological and chemical modifications of the electrode/electrolyte interfaces. The design strategy and implementation to overcome the prominent issues associated with sulfur electrodes are critically discussed. Also, several electrochemical and physicochemical characterization methods to examine the electron/ion transport at the interface are outlined. Given the superior theoretical physicochemical properties of the Li/S cells, we emphasize that the inappropriate interfacial design of the solid-state Li/S cells is the major challenge to bring solid-state Li/S cells to a commercially attractive level.
dc.language	en
dc.publisher	Wiley
dc.relation.ispartof	Electrochemical Science Advances
dc.relation.isbasedon	10.1002/elsa.202100154
dc.rights	info:eu-repo/semantics/openAccess
dc.title	A review of the rational interfacial designs and characterizations for solid‐state lithium/sulfur cells
dc.type	Journal Article
utslib.citation.volume	2
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	open_access	*
pubs.consider-herdc	false
dc.date.updated	2023-01-31T23:46:32Z
pubs.issue	6
pubs.publication-status	Accepted
pubs.volume	2
utslib.citation.issue	6

Abstract:

The high theoretical specific energy of lithium/sulfur (Li/S) cells (2600 Wh/kg) has positioned the Li/S cell as one of the most promising candidates for the beyond lithium-ion cell. Despite the evident advantages, there are remaining problems mainly associated with the unique solution-based reaction chemistry involving lithium polysulfide (Li-PS) that hinder the commercialization of the Li/S cells. Incorporating solid-state electrolytes (SSEs) can avoid the Li-PS shuttle problem while preserving the benefits of Li/S cells, but it introduces other challenges related to the electrode/electrolyte solid interfaces. This topical review summarizes the current status of solid-state Li/S cells and their major challenges and discusses the recent efforts to improve cell performance and durability. Various solid-state electrolytes, including oxides, sulfides, and solid polymer electrolytes, are briefly reviewed. In particular, we focus on the recent progress to improve the interfacial properties by two major approaches, morphological and chemical modifications of the electrode/electrolyte interfaces. The design strategy and implementation to overcome the prominent issues associated with sulfur electrodes are critically discussed. Also, several electrochemical and physicochemical characterization methods to examine the electron/ion transport at the interface are outlined. Given the superior theoretical physicochemical properties of the Li/S cells, we emphasize that the inappropriate interfacial design of the solid-state Li/S cells is the major challenge to bring solid-state Li/S cells to a commercially attractive level.

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http://hdl.handle.net/10453/165710