University of Limerick Institutional Repository

Influence of carbonate-based additives on the electrochemical performance of Si NW anodes cycled in an ionic liquid electrolyte.

DSpace Repository

Show simple item record

dc.contributor.author Stokes, Killian
dc.contributor.author Kennedy, Tadhg
dc.contributor.author Kim, Guk-Tae
dc.contributor.author Geaney, Hugh
dc.contributor.author Storan, Dylan
dc.contributor.author Laffir, Fathima R.
dc.contributor.author Appetecchi, Giovanni Battista
dc.contributor.author Passerini, Stefano
dc.contributor.author Ryan, Kevin M.
dc.date.accessioned 2020-10-23T11:24:35Z
dc.date.issued 2020
dc.identifier.citation Stokes, K., Kennedy, T., Kim, G.T., Geaney, H., Storan, D., Laffir, F., Appetecchi, G.B., Passerini, S. and Ryan, K.M.; (2020) 'Influence of Carbonate-Based Additives on the Electrochemical Performance of Si NW Anodes Cycled in an Ionic Liquid Electrolyte'. Nano Letters. en_US
dc.identifier.issn 1530-6992
dc.identifier.uri http://hdl.handle.net/10344/9361
dc.description peer-reviewed en_US
dc.description The full text of this article will not be available in ULIR until the embargo expires on the 10/07/2021
dc.description.abstract Addition of electrolyte additives (ethylene or vinylene carbonate) is shown to dramatically improve the cycling stability and capacity retention (1600 mAh g-1) of Si nanowires (NWs) in a safe ionic liquid (IL) electrolyte (0.1LiTFSI-0.6PYR13FSI-0.3PYR13TFSI). We show, using postmortem SEM and TEM, a distinct difference in morphologies of the active material after cycling in the presence or absence of the additives. The difference in performance is shown by postmortem XPS analysis to arise from a notable increase in irreversible silicate formation in the absence of the carbonate additives. The composition of the solid electrolyte interphase (SEI) formed at the active material surface was further analyzed using XPS as a function of the IL components revealing that the SEI was primarily made up of N-, F-, and S-containing compounds from the degradation of the TFSI and FSI anions. en_US
dc.language.iso eng en_US
dc.relation.ispartofseries Nano Letters;20 (10), pp. 7011-7019
dc.relation.uri https://doi.org/10.1021/acs.nanolett.0c01774
dc.rights © Year ACS This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.0c01774 en_US
dc.subject ionic liquid en_US
dc.subject electrolyte en_US
dc.subject silicon nanowires en_US
dc.subject SEI en_US
dc.subject xx-situ en_US
dc.title Influence of carbonate-based additives on the electrochemical performance of Si NW anodes cycled in an ionic liquid electrolyte. en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2020-10-23T11:12:22Z
dc.description.version ACCEPTED
dc.identifier.doi 10.1021/acs.nanolett.0c01774
dc.contributor.sponsor ERC en_US
dc.contributor.sponsor EU en_US
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor IRC en_US
dc.contributor.sponsor European Union (EU)
dc.contributor.sponsor Horizon 2020
dc.relation.projectid 814464 en_US
dc.relation.projectid 18/SIRG/5484 en_US
dc.relation.projectid CF20144014 en_US
dc.relation.projectid 16/IA/4629 en_US
dc.relation.projectid 11-PI-1148 en_US
dc.relation.projectid 16/M-ERA/3419 en_US
dc.date.embargoEndDate 2021-07-10
dc.embargo.terms 2021-07-10 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US
dc.internal.rssid 2969442
dc.internal.copyrightchecked Yes
dc.identifier.journaltitle Nano Letters
dc.description.status peer-reviewed


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


Browse

My Account

Statistics