Assessing charge contribution from thermally treated Ni foam as current collectors for Li-ion batteries

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dc.contributor.authorGeaney, Hugh
dc.contributor.authorMcNulty, David
dc.contributor.authorO'Connell, John
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2016-09-30T08:56:13Z
dc.date.available2016-09-30T08:56:13Z
dc.date.issued2016-07-22
dc.date.updated2016-09-26T10:01:39Z
dc.description.abstractIn this report we have investigated the use of Ni foam substrates as anode current collectors for Li-ion batteries. As the majority of reports in the literature focus on hydrothermal formation of materials on Ni foam followed by a high temperature anneal/oxidation step, we probed the fundamental electrochemical responses of as received Ni foam substrates and those subjected to heating at 100°C, 300°C and 450°C. Through cyclic voltammetry and galvanostatic testing, it is shown that the as received and 100°C annealed Ni foam show negligible electrochemical activity. However, Ni foams heated to higher temperature showed substantial electrochemical contributions which may lead to inflated capacities and incorrect interpretations of CV responses for samples subjected to high temperature anneals. XRD, XPS and SEM analyses clearly illustrate that the formation of electrochemically active NiO nanoparticles on the surface of the foam is responsible for this behavior. To further investigate the contribution of the oxidized Ni foam to the overall electrochemical response, we formed Co3O4 nanoflowers directly on Ni foam at 450°C and showed that the resulting electrochemical response was dominated by NiO after the first 10 charge/discharge cycles. This report highlights the importance of assessing current collector activity for active materials grown on transition metal foam current collectors for Li-ion applications.en
dc.description.sponsorshipScience Foundation Ireland (SFI Technology Innovation and Development Awards contract no. 13/TIDA/E2761, SFI grant Number 14/IA/2581.); European Commission (EU Seventh Framework Programme FP7/2007-2013 (Project STABLE) grant agreement no. 314508)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGeaney, H., McNulty, D., O'Connell, J., Holmes, J. D. & O'Dwyer, C. (2016) ‘Assessing charge contribution from thermally treated Ni Foam as current collectors for Li-ion batteries’, Journal of the Electrochemical Society, 163(8), pp. A1805-A1811. doi: 10.1149/2.0071609jesen
dc.identifier.doi10.1149/2.0071609jes
dc.identifier.endpageA1811en
dc.identifier.issn0013-4651
dc.identifier.issued8en
dc.identifier.journaltitleJournal of the Electrochemical Societyen
dc.identifier.startpageA1805en
dc.identifier.urihttps://hdl.handle.net/10468/3138
dc.identifier.volume163en
dc.language.isoenen
dc.publisherElectrochemical Societyen
dc.relation.urihttp://jes.ecsdl.org/content/current
dc.rights© The Author(s) 2016. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org.en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectBatteries and energy storageen
dc.subjectLithium-ion batteriesen
dc.subjectCyclic voltammetryen
dc.subjectElectric batteriesen
dc.subjectElectric current collectorsen
dc.subjectFoamsen
dc.subjectIonsen
dc.subjectNiO nanoparticlesen
dc.subjectHydrothermal formationsen
dc.subjectHigh-temperature annealsen
dc.subjectElectrochemical responseen
dc.subjectElectrochemical activitiesen
dc.subjectCurrent collectoren
dc.subjectLithiumen
dc.subjectCharge/discharge cycleen
dc.titleAssessing charge contribution from thermally treated Ni foam as current collectors for Li-ion batteriesen
dc.typeArticle (peer-reviewed)en
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