Naturally abundant high-performance rechargeable aluminum/iodine batteries based on conversion reaction chemistry

Zhang, S; Tan, X; Meng, Z; Tian, H; Xu, F; Han, WQ

Naturally abundant high-performance rechargeable aluminum/iodine batteries based on conversion reaction chemistry

Zhang, S Tan, X Meng, Z Tian, H

Xu, F Han, WQ

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Publication Type:: Journal Article
Citation:: Journal of Materials Chemistry A, 2018, 6 (21), pp. 9984 - 9996
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Zhang, S	en_US
dc.contributor.author	Tan, X	en_US
dc.contributor.author	Meng, Z	en_US
dc.contributor.author	Tian, H https://orcid.org/0000-0002-3622-129X	en_US
dc.contributor.author	Xu, F	en_US
dc.contributor.author	Han, WQ	en_US
dc.date.issued	2018-01-01	en_US
dc.identifier.citation	Journal of Materials Chemistry A, 2018, 6 (21), pp. 9984 - 9996	en_US
dc.identifier.issn	2050-7488	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130977
dc.description.abstract	© 2018 The Royal Society of Chemistry. Rechargeable multivalent ion (Al3+, Mg2+ and Zn2+) batteries provide a viable alternative to lithium ion batteries because of the supply risk of lithium resources and safety concern. In this study, rechargeable metal-iodine batteries, particularly aluminum/iodine batteries, were fabricated with novel active carbon cloth/polyvinylpyrrolidone (ACC/PVPI) composite cathodes prepared via a facile solution-adsorption method combined with freeze-drying. The use of active carbon cloth (ACC) endows the composites superior electronic conductivity, and significantly decreases the weight of the electrode due to its function as a current collector. Hydrogen bonding interaction between PVP and iodine in PVPI guarantees the depression of the shuttle effect of polyiodide, thus lengthening the cycle life. The density functional theory (DFT) analysis shows that such shuttle depression occurs due to the hydrogen-bonded iodine species, and the relatively large formation energy hints at higher conversion reaction efficiency of Al ion batteries. These characteristics make the composites an ideal electrode in various metal ion batteries. To be specific, the Al/I2 battery with a distinct working potential window achieves a high capacity of 180.1 mA h g-1 at 0.2C and can remain stable after 500 cycles with a stable capacity of 127 mA h g-1 at 0.6C. Moreover, at higher current density of 1C, the battery delivers a capacity of 102.7 mA h g-1 for up to 1050 cycles. These above-mentioned characteristics of metal-iodine (Li, Mg and Al/I2) batteries, related electrochemical performance measurements and theoretical modeling analysis show that the rechargeable iodine-based batteries provide a promising direction in designing high-performance energy storage/transfer systems.	en_US
dc.relation.ispartof	Journal of Materials Chemistry A	en_US
dc.relation.isbasedon	10.1039/c8ta00675j	en_US
dc.title	Naturally abundant high-performance rechargeable aluminum/iodine batteries based on conversion reaction chemistry	en_US
dc.type	Journal Article
utslib.citation.volume	21	en_US
utslib.citation.volume	6	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
pubs.embargo.period	Not known	en_US
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
utslib.copyright.status	closed_access
pubs.issue	21	en_US
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© 2018 The Royal Society of Chemistry. Rechargeable multivalent ion (Al3+, Mg2+ and Zn2+) batteries provide a viable alternative to lithium ion batteries because of the supply risk of lithium resources and safety concern. In this study, rechargeable metal-iodine batteries, particularly aluminum/iodine batteries, were fabricated with novel active carbon cloth/polyvinylpyrrolidone (ACC/PVPI) composite cathodes prepared via a facile solution-adsorption method combined with freeze-drying. The use of active carbon cloth (ACC) endows the composites superior electronic conductivity, and significantly decreases the weight of the electrode due to its function as a current collector. Hydrogen bonding interaction between PVP and iodine in PVPI guarantees the depression of the shuttle effect of polyiodide, thus lengthening the cycle life. The density functional theory (DFT) analysis shows that such shuttle depression occurs due to the hydrogen-bonded iodine species, and the relatively large formation energy hints at higher conversion reaction efficiency of Al ion batteries. These characteristics make the composites an ideal electrode in various metal ion batteries. To be specific, the Al/I2 battery with a distinct working potential window achieves a high capacity of 180.1 mA h g-1 at 0.2C and can remain stable after 500 cycles with a stable capacity of 127 mA h g-1 at 0.6C. Moreover, at higher current density of 1C, the battery delivers a capacity of 102.7 mA h g-1 for up to 1050 cycles. These above-mentioned characteristics of metal-iodine (Li, Mg and Al/I2) batteries, related electrochemical performance measurements and theoretical modeling analysis show that the rechargeable iodine-based batteries provide a promising direction in designing high-performance energy storage/transfer systems.

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http://hdl.handle.net/10453/130977