A universal strategy towards high–energy aqueous multivalent–ion batteries

Tang, X; Zhou, D; Zhang, B; Wang, S; Li, P; Liu, H; Guo, X; Jaumaux, P; Gao, X; Fu, Y; Wang, C; Wang, C; Wang, G

A universal strategy towards high–energy aqueous multivalent–ion batteries

Tang, X Zhou, D Zhang, B Wang, S Li, P Liu, H

Guo, X

Jaumaux, P Gao, X Fu, Y Wang, C Wang, C Wang, G

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Publisher:: NATURE RESEARCH
Publication Type:: Journal Article
Citation:: Nature Communications, 2021, 12, (1), pp. 2857
Issue Date:: 2021-05-17

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Field	Value	Language
dc.contributor.author	Tang, X
dc.contributor.author	Zhou, D
dc.contributor.author	Zhang, B
dc.contributor.author	Wang, S
dc.contributor.author	Li, P
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472
dc.contributor.author	Guo, X https://orcid.org/0000-0001-7771-0463
dc.contributor.author	Jaumaux, P
dc.contributor.author	Gao, X
dc.contributor.author	Fu, Y
dc.contributor.author	Wang, C
dc.contributor.author	Wang, C
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.date.accessioned	2021-07-27T03:35:28Z
dc.date.available	2021-03-27
dc.date.available	2021-07-27T03:35:28Z
dc.date.issued	2021-05-17
dc.identifier.citation	Nature Communications, 2021, 12, (1), pp. 2857
dc.identifier.issn	2041-1723
dc.identifier.issn	2041-1723
dc.identifier.uri	http://hdl.handle.net/10453/149945
dc.description.abstract	Rechargeable multivalent metal (e.g., Ca, Mg or, Al) batteries are ideal candidates for large-scale electrochemical energy storage due to their intrinsic low cost. However, their practical application is hampered by the low electrochemical reversibility, dendrite growth at the metal anodes, sluggish multivalent-ion kinetics in metal oxide cathodes and, poor electrode compatibility with non-aqueous organic-based electrolytes. To circumvent these issues, here we report various aqueous multivalent-ion batteries comprising of concentrated aqueous gel electrolytes, sulfur-containing anodes and, high-voltage metal oxide cathodes as alternative systems to the non-aqueous multivalent metal batteries. This rationally designed aqueous battery chemistry enables satisfactory specific energy, favorable reversibility and improved safety. As a demonstration model, we report a room-temperature calcium-ion/sulfur\| \|metal oxide full cell with a specific energy of 110 Wh kg<sup>-1</sup> and remarkable cycling stability. Molecular dynamics modeling and experimental investigations reveal that the side reactions could be significantly restrained through the suppressed water activity and formation of a protective inorganic solid electrolyte interphase. The unique redox chemistry of the multivalent-ion system is also demonstrated for aqueous magnesium-ion/sulfur\|\|metal oxide and aluminum-ion/sulfur\|\|metal oxide full cells.
dc.format	Electronic
dc.language	eng
dc.publisher	NATURE RESEARCH
dc.relation	http://purl.org/au-research/grants/arc/DP200101249
dc.relation.ispartof	Nature Communications
dc.relation.isbasedon	10.1038/s41467-021-23209-6
dc.rights	info:eu-repo/semantics/openAccess
dc.title	A universal strategy towards high–energy aqueous multivalent–ion 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 Life Sciences
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	open_access	*
dc.date.updated	2021-07-27T03:35:18Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	1

Abstract:

Rechargeable multivalent metal (e.g., Ca, Mg or, Al) batteries are ideal candidates for large-scale electrochemical energy storage due to their intrinsic low cost. However, their practical application is hampered by the low electrochemical reversibility, dendrite growth at the metal anodes, sluggish multivalent-ion kinetics in metal oxide cathodes and, poor electrode compatibility with non-aqueous organic-based electrolytes. To circumvent these issues, here we report various aqueous multivalent-ion batteries comprising of concentrated aqueous gel electrolytes, sulfur-containing anodes and, high-voltage metal oxide cathodes as alternative systems to the non-aqueous multivalent metal batteries. This rationally designed aqueous battery chemistry enables satisfactory specific energy, favorable reversibility and improved safety. As a demonstration model, we report a room-temperature calcium-ion/sulfur| |metal oxide full cell with a specific energy of 110 Wh kg^-1 and remarkable cycling stability. Molecular dynamics modeling and experimental investigations reveal that the side reactions could be significantly restrained through the suppressed water activity and formation of a protective inorganic solid electrolyte interphase. The unique redox chemistry of the multivalent-ion system is also demonstrated for aqueous magnesium-ion/sulfur||metal oxide and aluminum-ion/sulfur||metal oxide full cells.

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http://hdl.handle.net/10453/149945