Ionic liquid based polymer gel electrolytes for use with germanium thin film anodes in lithium ion batteries

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dc.contributor.authorMcGrath, Louise M.
dc.contributor.authorJones, John
dc.contributor.authorCarey, Edwin
dc.contributor.authorRohan, James F.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Regional Development Funden
dc.date.accessioned2021-01-26T12:33:41Z
dc.date.available2021-01-26T12:33:41Z
dc.date.issued2019-12-13
dc.date.updated2021-01-26T12:11:34Z
dc.description.abstractThermally stable, flexible polymer gel electrolytes with high ionic conductivity are prepared by mixing the ionic liquid 1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (C4mpyrTFSI), LiTFSI and poly(vinylidene difluoride‐co‐hexafluoropropylene (PVDF‐HFP). FT‐IR and Raman spectroscopy show that an amorphous film is obtained for high (60 %) C4mpyrTFSI contents. Thermogravimetric analysis (TGA) confirms that the polymer gels are stable below ∼300 °C in both nitrogen and air environments. Ionic conductivity of 1.9×10−3 S cm−2 at room temperature is achieved for the 60 % ionic liquid loaded gel. Germanium (Ge) anodes maintain a coulombic efficiency above 95 % after 90 cycles in potential cycling tests with the 60 % C4mpyrTFSI polymer gel.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMcGrath, L. M., Jones, J., Carey, E. and Rohan, J. F. (2019) 'Ionic Liquid Based Polymer Gel Electrolytes for Use with Germanium Thin Film Anodes in Lithium Ion Batteries', ChemistryOpen, 8(12), pp. 1429-1436. doi: 10.1002/open.201900313en
dc.identifier.doi10.1002/open.201900313en
dc.identifier.endpage1436en
dc.identifier.issn2191-1363
dc.identifier.issued12en
dc.identifier.journaltitleChemistryopenen
dc.identifier.startpage1429en
dc.identifier.urihttps://hdl.handle.net/10468/10965
dc.identifier.volume8en
dc.language.isoenen
dc.publisherWileyen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2077/IE/CONNECT: The Centre for Future Networks & Communications/en
dc.relation.urihttps://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/open.201900313
dc.rights© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are madeen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectFlexible polymersen
dc.subjectGel electrolyte membranesen
dc.subjectGermanium anodesen
dc.subjectIonic liquidsen
dc.subjectLithium-ion batteriesen
dc.titleIonic liquid based polymer gel electrolytes for use with germanium thin film anodes in lithium ion batteriesen
dc.typeArticle (peer-reviewed)en
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