Unlocking the potential of ionic liquid-functionalized aqueous electrolytes for aqueous ammonium-bromine/ion batteries

Wang, Q; Zhang, Y; Li, H; Ying, S; Ding, Z; Wang, Y; Fang, T; Wei, C; Ma, C; Sun, B; Liu, X; Tang, X

Unlocking the potential of ionic liquid-functionalized aqueous electrolytes for aqueous ammonium-bromine/ion batteries

Wang, Q Zhang, Y Li, H Ying, S Ding, Z Wang, Y Fang, T Wei, C Ma, C Sun, B

Liu, X Tang, X

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Energy Storage Materials, 2024, 70
Issue Date:: 2024-06-01

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Field	Value	Language
dc.contributor.author	Wang, Q
dc.contributor.author	Zhang, Y
dc.contributor.author	Li, H
dc.contributor.author	Ying, S
dc.contributor.author	Ding, Z
dc.contributor.author	Wang, Y
dc.contributor.author	Fang, T
dc.contributor.author	Wei, C
dc.contributor.author	Ma, C
dc.contributor.author	Sun, B https://orcid.org/0000-0002-4365-486X
dc.contributor.author	Liu, X
dc.contributor.author	Tang, X
dc.date.accessioned	2025-01-30T06:25:27Z
dc.date.available	2025-01-30T06:25:27Z
dc.date.issued	2024-06-01
dc.identifier.citation	Energy Storage Materials, 2024, 70
dc.identifier.issn	2405-8297
dc.identifier.issn	2405-8297
dc.identifier.uri	http://hdl.handle.net/10453/184674
dc.description.abstract	Aqueous ammonium-ion batteries are promising candidates for grid-scale energy storage owing to their non-flammability, eco-friendliness, and low-cost. Nevertheless, their further development suffers from electrolyte/electrode instability and limited energy density. Herein, we develop an aqueous ammonium-bromine/ion battery composed of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) organic materials as the anode, Br2/Br− redox couple as the cathode, and ionic liquid-functionalized aqueous solution as the electrolyte. The experimental investigation and theoretical calculation results reveal that two organic cations (TPA+ and BMIM+) in the functionalized electrolyte can insert into the PTCDA anode with different intercalation chemistry, which enhances the reversibility of NH4+ storage. Furthermore, organic cations not only construct a hydrophobic interfacial layer to expel water molecules from the anode surface, but also stabilize the active species at the cathode side by forming a solid complexation phase. Consequently, the as-developed aqueous ammonium-bromine/ion batteries present satisfactory electrochemical performance at both room temperature and low temperature, which promotes its potential application in grid-scale energy storage.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Energy Storage Materials
dc.relation.isbasedon	10.1016/j.ensm.2024.103553
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0906 Electrical and Electronic Engineering
dc.title	Unlocking the potential of ionic liquid-functionalized aqueous electrolytes for aqueous ammonium-bromine/ion batteries
dc.type	Journal Article
utslib.citation.volume	70
utslib.for	0904 Chemical Engineering
utslib.for	0906 Electrical and Electronic Engineering
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	2025-01-30T06:25:25Z
pubs.publication-status	Published
pubs.volume	70

Abstract:

Aqueous ammonium-ion batteries are promising candidates for grid-scale energy storage owing to their non-flammability, eco-friendliness, and low-cost. Nevertheless, their further development suffers from electrolyte/electrode instability and limited energy density. Herein, we develop an aqueous ammonium-bromine/ion battery composed of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) organic materials as the anode, Br2/Br− redox couple as the cathode, and ionic liquid-functionalized aqueous solution as the electrolyte. The experimental investigation and theoretical calculation results reveal that two organic cations (TPA+ and BMIM+) in the functionalized electrolyte can insert into the PTCDA anode with different intercalation chemistry, which enhances the reversibility of NH4+ storage. Furthermore, organic cations not only construct a hydrophobic interfacial layer to expel water molecules from the anode surface, but also stabilize the active species at the cathode side by forming a solid complexation phase. Consequently, the as-developed aqueous ammonium-bromine/ion batteries present satisfactory electrochemical performance at both room temperature and low temperature, which promotes its potential application in grid-scale energy storage.

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http://hdl.handle.net/10453/184674