Propelling the polysulfide phase transformation of lithium–sulfur battery by VO<inf>2</inf>-rGO

Xu, J; Li, T; Zhang, W; Wu, W; Jin, Y; Zhang, X; Su, D; Wang, G

Propelling the polysulfide phase transformation of lithium–sulfur battery by VO<inf>2</inf>-rGO

Xu, J Li, T Zhang, W Wu, W Jin, Y Zhang, X Su, D

Wang, G

Permalink

Publication Type:: Journal Article
Citation:: Journal of Alloys and Compounds, 2019, 804 pp. 549 - 553
Issue Date:: 2019-10-05

Closed Access

	Filename	Description	Size
	1-s2.0-S0925838819323163-main.pdf	Published Version	1.48 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Xu, J	en_US
dc.contributor.author	Li, T	en_US
dc.contributor.author	Zhang, W	en_US
dc.contributor.author	Wu, W	en_US
dc.contributor.author	Jin, Y	en_US
dc.contributor.author	Zhang, X	en_US
dc.contributor.author	Su, D https://orcid.org/0000-0002-3972-8205	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2019-10-05	en_US
dc.identifier.citation	Journal of Alloys and Compounds, 2019, 804 pp. 549 - 553	en_US
dc.identifier.issn	0925-8388	en_US
dc.identifier.uri	http://hdl.handle.net/10453/136443
dc.description.abstract	© 2019 Elsevier B.V. Rather than preventing the dissolution and diffusion of polysulfides, promoting polysulfide conversion through improved polysulfide redox is another promising strategy to suppress the dissolution of polysulfides and enhance the cycle life of sulfur cathodes. We demonstrated that VO2-rGO not only facilities liquid-involving polysulfide redox (Li2S8→Li2S6→Li2S4), but also promotes the effective decompositions of lithium sulfide (Li2S). As evidenced by the visual experiments and DFT calculation, VO2-rGO has strong affinity for polysulfides species. With sulfur loading of 2.15 mg cm−2 and sulfur content of 76 wt%, the reversible capacity retained at 896 mAh g−1 after 200 cycles.	en_US
dc.relation.ispartof	Journal of Alloys and Compounds	en_US
dc.relation.isbasedon	10.1016/j.jallcom.2019.06.232	en_US
dc.subject.classification	Materials	en_US
dc.title	Propelling the polysulfide phase transformation of lithium–sulfur battery by VO<inf>2</inf>-rGO	en_US
dc.type	Journal Article
utslib.citation.volume	804	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
utslib.for	0204 Condensed Matter Physics	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	closed_access
pubs.publication-status	Published	en_US
pubs.volume	804	en_US

Abstract:

© 2019 Elsevier B.V. Rather than preventing the dissolution and diffusion of polysulfides, promoting polysulfide conversion through improved polysulfide redox is another promising strategy to suppress the dissolution of polysulfides and enhance the cycle life of sulfur cathodes. We demonstrated that VO2-rGO not only facilities liquid-involving polysulfide redox (Li2S8→Li2S6→Li2S4), but also promotes the effective decompositions of lithium sulfide (Li2S). As evidenced by the visual experiments and DFT calculation, VO2-rGO has strong affinity for polysulfides species. With sulfur loading of 2.15 mg cm−2 and sulfur content of 76 wt%, the reversible capacity retained at 896 mAh g−1 after 200 cycles.

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

http://hdl.handle.net/10453/136443