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dc.contributor.authorTrudgeon, DP
dc.contributor.authorLi, X
dc.date.accessioned2020-11-19T10:44:20Z
dc.date.issued2020-11-16
dc.description.abstractThis work aims to identify a suitable electrolyte composition for the operation of a zinc-nickel flow cell at ambient temperature. The effect of varying electrolyte composition containing KOH, ZnO, tetraethylammonium hydroxide (TEAH) or tetrabutylammonium bromide (TEAB) electrolyte additives are investigated. A 15 mM concentration of TEAH is found to provide smooth and compact zinc depositions. Increasing concentrations of KOH are found to be detrimental to voltaic efficiency, with coulombic efficiency peaking in 6 M KOH. The coulombic efficiencies of both zinc and nickel electrodes improve with ZnO concentration. Galvanostatic zinc-nickel flow cell cycling yields the highest efficiencies in an electrolyte of 6 M KOH with 0.5 M ZnO and 15 mM TEAH, with coulombic, voltaic and energy efficiencies of 98 %, 88 % and 86 % respectively over 70 stable charge/discharge cycles.en_GB
dc.description.sponsorshipEngineering and Physical Sciences Research Council (EPSRC)en_GB
dc.description.sponsorshipUniversity of Exeteren_GB
dc.identifier.citationArticle 137479en_GB
dc.identifier.doi10.1016/j.electacta.2020.137479
dc.identifier.grantnumberEP/P003494/1en_GB
dc.identifier.urihttp://hdl.handle.net/10871/123687
dc.language.isoenen_GB
dc.publisherElsevier / International Society of Electrochemistry (ISE)en_GB
dc.rights.embargoreasonUnder embargo until 16 November 2021 in compliance with publisher policyen_GB
dc.rights © 2020. This version is made available under the CC-BY-NC-ND 4.0 license: https://creativecommons.org/licenses/by-nc-nd/4.0/  en_GB
dc.subjectElectrolyte additiveen_GB
dc.subjectZinc electrodeen_GB
dc.subjectZinc electrodepositionen_GB
dc.subjectRedox flow batteryen_GB
dc.titleThe Effect of Electrolyte and Additive Concentration on Zinc-Nickel Flow Cell Performanceen_GB
dc.typeArticleen_GB
dc.date.available2020-11-19T10:44:20Z
dc.identifier.issn0013-4686
exeter.article-number137479en_GB
dc.descriptionThis is the author accepted manuscript. The final version is available from Elsevier via the DOI in this recorden_GB
dc.identifier.journalElectrochimica Actaen_GB
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/  en_GB
dcterms.dateAccepted2020-11-12
rioxxterms.versionAMen_GB
rioxxterms.licenseref.startdate2020-11-16
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2020-11-19T10:40:43Z
refterms.versionFCDAM
refterms.panelBen_GB


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 © 2020. This version is made available under the CC-BY-NC-ND 4.0 license: https://creativecommons.org/licenses/by-nc-nd/4.0/  
Except where otherwise noted, this item's licence is described as  © 2020. This version is made available under the CC-BY-NC-ND 4.0 license: https://creativecommons.org/licenses/by-nc-nd/4.0/