Rechargeable aluminum/iodine battery redox chemistry in ionic liquid electrolyte

Tian, H; Zhang, S; Meng, Z; He, W; Han, WQ

Rechargeable aluminum/iodine battery redox chemistry in ionic liquid electrolyte

Tian, H

Zhang, S Meng, Z He, W Han, WQ

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Publication Type:: Journal Article
Citation:: ACS Energy Letters, 2017, 2 (5), pp. 1170 - 1176
Issue Date:: 2017-05-12

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Field	Value	Language
dc.contributor.author	Tian, H https://orcid.org/0000-0002-3622-129X	en_US
dc.contributor.author	Zhang, S	en_US
dc.contributor.author	Meng, Z	en_US
dc.contributor.author	He, W	en_US
dc.contributor.author	Han, WQ	en_US
dc.date.issued	2017-05-12	en_US
dc.identifier.citation	ACS Energy Letters, 2017, 2 (5), pp. 1170 - 1176	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125002
dc.description.abstract	© 2017 American Chemical Society. Rechargeable aluminum ion batteries (RABs) have attracted much attention because of their high charge density, low cost, and low flammability. However, the traditional cathodes used in RABs had limited intercalation ability of Al3+ ion, leading to a low capacity. We report for the first time a rechargeable aluminum/iodine (Al/I2) battery. The unique conversion reaction mechanism of the Al/I2 battery chemistry avoids the cathode material disintegration during repeated charge-discharge processes, and this system successfully suppresses the shuttle of dissolved polyiodide in ionic liquid because of the hydrogen-bonding interaction, resulting in a robust rechargeable RAB system. The rechargeable Al/I2 battery based on the I3-/I-redox chemistry is demonstrated to be highly reversible in Al3+ ion storage, providing a high capacity of >200 mAh g-1 at 0.2C and high stability for even over 150 cycles at 1C. This work provides a new insight into designing a RAB system based on redox chemistry.	en_US
dc.relation.ispartof	ACS Energy Letters	en_US
dc.relation.isbasedon	10.1021/acsenergylett.7b00160	en_US
dc.title	Rechargeable aluminum/iodine battery redox chemistry in ionic liquid electrolyte	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	2	en_US
utslib.for	0912 Materials 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	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	2	en_US

Abstract:

© 2017 American Chemical Society. Rechargeable aluminum ion batteries (RABs) have attracted much attention because of their high charge density, low cost, and low flammability. However, the traditional cathodes used in RABs had limited intercalation ability of Al3+ ion, leading to a low capacity. We report for the first time a rechargeable aluminum/iodine (Al/I2) battery. The unique conversion reaction mechanism of the Al/I2 battery chemistry avoids the cathode material disintegration during repeated charge-discharge processes, and this system successfully suppresses the shuttle of dissolved polyiodide in ionic liquid because of the hydrogen-bonding interaction, resulting in a robust rechargeable RAB system. The rechargeable Al/I2 battery based on the I3-/I-redox chemistry is demonstrated to be highly reversible in Al3+ ion storage, providing a high capacity of >200 mAh g-1 at 0.2C and high stability for even over 150 cycles at 1C. This work provides a new insight into designing a RAB system based on redox chemistry.

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http://hdl.handle.net/10453/125002