Polysulfide binding to several nanoscale TinO2n-1 Magnéli phases by simple synthesis in carbon for efficient and long life, high mass loaded lithium sulfur battery cathodes

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dc.contributor.author Zubair, Usman
dc.contributor.author Amici, Julia
dc.contributor.author Francia, Carlotta
dc.contributor.author McNulty, David
dc.contributor.author Bodoardo, Silvia
dc.contributor.author O'Dwyer, Colm
dc.date.accessioned 2018-04-24T15:01:15Z
dc.date.available 2018-04-24T15:01:15Z
dc.date.issued 2018-04-06
dc.identifier.citation Zubair, U., Amici, J., Francia, C., McNulty, D., Bodoardo, S. and O'Dwyer, C. (2018) 'Polysulfide binding to several nanoscale TinO2n-1 Magnéli phases by simple synthesis in carbon for efficient and long life, high mass loaded lithium sulfur battery cathodes', Chemsuschem, In Press, doi: 10.1002/cssc.201800484 en
dc.identifier.startpage 1 en
dc.identifier.endpage 11 en
dc.identifier.uri http://hdl.handle.net/10468/5868
dc.identifier.doi 10.1002/cssc.201800484
dc.description.abstract In Li‐S batteries, it is important to ensure efficient reversible conversion of sulfur to lithium polysulfide (LiPS). Shuttling effects caused by LiPS dissolution can lead to reduced performance and cycle life. While carbons rely on physical trapping of polysulfides, polar oxide surfaces can chemically bind LiPS to improve the stability of sulfur cathodes. We show a simple synthetic method allowing high sulfur loading into mesoporous carbon, pre‐loaded with spatially localized nanoparticles of several Magnéli phase titanium oxide, TinO2n‐1. This material simultaneously suppresses polysulfide shuttling phenomena by chemically binding Li polysulfides onto several Magnéli phase surfaces in a single cathode, and ensures physical confinement of sulfur and LiPS. The synergy between chemical immobilization of significant quantities of LiPS at the surface of several TinO2n‐1 phases, and physical entrapment ensures Coulombically efficient, long cycle life, high capacity and high rate cathode. These cathodes function efficiently at low electrolyte to sulfur (E/S) ratios to provide high gravimetric and volumetric capacities in comparison with highly porous carbon counterparts. Assembled coin cells have an initial discharge capacity of 1100 mA h g‐1 at 0.1 C, and maintain a reversible capacity of 520 mA h g‐1 at 0.2 C for more than 500 cycles. Even at 1C, the cell loses only 0.06% per cycle for 1000 cycles with Coulombic efficiency close to 99%. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Wiley en
dc.relation.uri https://onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201800484
dc.rights © 2018 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim. This is the peer reviewed version of the following article: (2018) Polysulfide Binding to Several Nanoscale TinO2n‐1 Magnéli Phases by Simple Synthesis in Carbon for Efficient and Long Life, High Mass Loaded Lithium Sulfur Battery Cathodes, ChemSusChem, which has been published in final form at https://doi.org/10.1002/cssc.201800484. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. en
dc.subject Li-S battery en
dc.subject Nanoparticle en
dc.subject Energy storage en
dc.title Polysulfide binding to several nanoscale TinO2n-1 Magnéli phases by simple synthesis in carbon for efficient and long life, high mass loaded lithium sulfur battery cathodes en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication by request of the publisher. en
dc.check.date 2019-04-06
dc.date.updated 2018-04-24T07:25:33Z
dc.description.version Accepted Version en
dc.internal.rssid 435087566
dc.contributor.funder Horizon 2020 en
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Chemsuschem en
dc.internal.copyrightchecked No !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en
dc.internal.bibliocheck In press April 2018. Update citation and copyright details. Add vol, issue, page numbers en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020::RIA/666157/EU/Advanced Lithium Sulphur battery for xEV/ALISE en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Investigator Programme/14/IA/2581/IE/Diffractive optics and photonic probes for efficient mouldable 3D printed battery skin materials for portable electronic devices/ en

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