A synergistic exploitation to produce high-voltage quasi-solid-state lithium metal batteries.

Wu, J; Wang, X; Liu, Q; Wang, S; Zhou, D; Kang, F; Shanmukaraj, D; Armand, M; Rojo, T; Li, B; Wang, G

A synergistic exploitation to produce high-voltage quasi-solid-state lithium metal batteries.

Wu, J Wang, X Liu, Q Wang, S Zhou, D Kang, F Shanmukaraj, D Armand, M Rojo, T Li, B Wang, G

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Publisher:: Springer Science and Business Media LLC
Publication Type:: Journal Article
Citation:: Nat Commun, 2021, 12, (1), pp. 5746
Issue Date:: 2021-09-30

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Field	Value	Language
dc.contributor.author	Wu, J
dc.contributor.author	Wang, X
dc.contributor.author	Liu, Q
dc.contributor.author	Wang, S
dc.contributor.author	Zhou, D
dc.contributor.author	Kang, F
dc.contributor.author	Shanmukaraj, D
dc.contributor.author	Armand, M
dc.contributor.author	Rojo, T
dc.contributor.author	Li, B
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.date.accessioned	2022-01-07T02:00:04Z
dc.date.available	2021-09-14
dc.date.available	2022-01-07T02:00:04Z
dc.date.issued	2021-09-30
dc.identifier.citation	Nat Commun, 2021, 12, (1), pp. 5746
dc.identifier.issn	2041-1723
dc.identifier.issn	2041-1723
dc.identifier.uri	http://hdl.handle.net/10453/152806
dc.description.abstract	The current Li-based battery technology is limited in terms of energy contents. Therefore, several approaches are considered to improve the energy density of these energy storage devices. Here, we report the combination of a heteroatom-based gel polymer electrolyte with a hybrid cathode comprising of a Li-rich oxide active material and graphite conductive agent to produce a high-energy "shuttle-relay" Li metal battery, where additional capacity is generated from the electrolyte's anion shuttling at high voltages. The gel polymer electrolyte, prepared via in situ polymerization in an all-fluorinated electrolyte, shows adequate ionic conductivity (around 2 mS cm-1 at 25 °C), oxidation stability (up to 5.5 V vs Li/Li+), compatibility with Li metal and safety aspects (i.e., non-flammability). The polymeric electrolyte allows for a reversible insertion of hexafluorophosphate anions into the conductive graphite (i.e., dual-ion mechanism) after the removal of Li ions from Li-rich oxide (i.e., rocking-chair mechanism).
dc.format	Electronic
dc.language	eng
dc.publisher	Springer Science and Business Media LLC
dc.relation	http://purl.org/au-research/grants/arc/IH180100020
dc.relation	http://purl.org/au-research/grants/arc/DP200101249
dc.relation	http://purl.org/au-research/grants/arc/DP210101389
dc.relation.ispartof	Nat Commun
dc.relation.isbasedon	10.1038/s41467-021-26073-6
dc.rights	Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.title	A synergistic exploitation to produce high-voltage quasi-solid-state lithium metal batteries.
dc.type	Journal Article
utslib.citation.volume	12
utslib.location.activity	England
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	recently_added	*
dc.date.updated	2022-01-07T02:00:00Z
pubs.issue	1
pubs.publication-status	Published online
pubs.volume	12
utslib.citation.issue	1

Abstract:

The current Li-based battery technology is limited in terms of energy contents. Therefore, several approaches are considered to improve the energy density of these energy storage devices. Here, we report the combination of a heteroatom-based gel polymer electrolyte with a hybrid cathode comprising of a Li-rich oxide active material and graphite conductive agent to produce a high-energy "shuttle-relay" Li metal battery, where additional capacity is generated from the electrolyte's anion shuttling at high voltages. The gel polymer electrolyte, prepared via in situ polymerization in an all-fluorinated electrolyte, shows adequate ionic conductivity (around 2 mS cm-1 at 25 °C), oxidation stability (up to 5.5 V vs Li/Li+), compatibility with Li metal and safety aspects (i.e., non-flammability). The polymeric electrolyte allows for a reversible insertion of hexafluorophosphate anions into the conductive graphite (i.e., dual-ion mechanism) after the removal of Li ions from Li-rich oxide (i.e., rocking-chair mechanism).

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http://hdl.handle.net/10453/152806