A versatile functionalized ionic liquid to boost the solution-mediated performances of lithium-oxygen batteries

Zhang, J; Sun, B; Zhao, Y; Tkacheva, A; Liu, Z; Yan, K; Guo, X; McDonagh, AM; Shanmukaraj, D; Wang, C; Rojo, T; Armand, M; Peng, Z; Wang, G

A versatile functionalized ionic liquid to boost the solution-mediated performances of lithium-oxygen batteries

Zhang, J

Sun, B

Zhao, Y

Tkacheva, A Liu, Z Yan, K

Guo, X

McDonagh, AM

Shanmukaraj, D Wang, C Rojo, T Armand, M Peng, Z Wang, G

Permalink

Publication Type:: Journal Article
Citation:: Nature Communications, 2019, 10 (1)
Issue Date:: 2019-12-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Published VersionAdobe PDF (2.19 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Zhang, J https://orcid.org/0000-0001-5476-0134	en_US
dc.contributor.author	Sun, B https://orcid.org/0000-0002-4365-486X	en_US
dc.contributor.author	Zhao, Y https://orcid.org/0000-0002-8653-8666	en_US
dc.contributor.author	Tkacheva, A	en_US
dc.contributor.author	Liu, Z	en_US
dc.contributor.author	Yan, K https://orcid.org/0000-0002-3623-658X	en_US
dc.contributor.author	Guo, X https://orcid.org/0000-0001-7771-0463	en_US
dc.contributor.author	McDonagh, AM https://orcid.org/0000-0002-9502-1175	en_US
dc.contributor.author	Shanmukaraj, D	en_US
dc.contributor.author	Wang, C	en_US
dc.contributor.author	Rojo, T	en_US
dc.contributor.author	Armand, M	en_US
dc.contributor.author	Peng, Z	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.available	2019-01-12	en_US
dc.date.issued	2019-12-01	en_US
dc.identifier.citation	Nature Communications, 2019, 10 (1)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130595
dc.description.abstract	© 2019, The Author(s). Due to the high theoretical specific energy, the lithium–oxygen battery has been heralded as a promising energy storage system for applications such as electric vehicles. However, its large over-potentials during discharge–charge cycling lead to the formation of side-products, and short cycle life. Herein, we report an ionic liquid bearing the redox active 2,2,6,6-tetramethyl-1-piperidinyloxy moiety, which serves multiple functions as redox mediator, oxygen shuttle, lithium anode protector, as well as electrolyte solvent. The additive contributes a 33-fold increase of the discharge capacity in comparison to a pure ether-based electrolyte and lowers the over-potential to an exceptionally low value of 0.9 V. Meanwhile, its molecule facilitates smooth lithium plating/stripping, and promotes the formation of a stable solid electrolyte interface to suppress side-reactions. Moreover, the proportion of ionic liquid in the electrolyte influences the reaction mechanism, and a high proportion leads to the formation of amorphous lithium peroxide and a long cycling life (> 200 cycles). In particular, it enables an outstanding electrochemical performance when operated in air.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP160104340
dc.relation.ispartof	Nature Communications	en_US
dc.relation.isbasedon	10.1038/s41467-019-08422-8	en_US
dc.title	A versatile functionalized ionic liquid to boost the solution-mediated performances of lithium-oxygen batteries	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	10	en_US
utslib.for	0906 Electrical and Electronic 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
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	10	en_US

Abstract:

© 2019, The Author(s). Due to the high theoretical specific energy, the lithium–oxygen battery has been heralded as a promising energy storage system for applications such as electric vehicles. However, its large over-potentials during discharge–charge cycling lead to the formation of side-products, and short cycle life. Herein, we report an ionic liquid bearing the redox active 2,2,6,6-tetramethyl-1-piperidinyloxy moiety, which serves multiple functions as redox mediator, oxygen shuttle, lithium anode protector, as well as electrolyte solvent. The additive contributes a 33-fold increase of the discharge capacity in comparison to a pure ether-based electrolyte and lowers the over-potential to an exceptionally low value of 0.9 V. Meanwhile, its molecule facilitates smooth lithium plating/stripping, and promotes the formation of a stable solid electrolyte interface to suppress side-reactions. Moreover, the proportion of ionic liquid in the electrolyte influences the reaction mechanism, and a high proportion leads to the formation of amorphous lithium peroxide and a long cycling life (> 200 cycles). In particular, it enables an outstanding electrochemical performance when operated in air.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/130595