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dc.contributor.authorPramanik, Atin
dc.contributor.authorManche, Alexis G.
dc.contributor.authorSougrati, Moulay Tahar
dc.contributor.authorChadwick, Alan
dc.contributor.authorLightfoot, Philip
dc.contributor.authorArmstrong, Robert
dc.identifier.citationPramanik , A , Manche , A G , Sougrati , M T , Chadwick , A , Lightfoot , P & Armstrong , R 2023 , ' K 2 Fe(C 2 O 4 ) 2 : an oxalate cathode for Li/Na ion batteries exhibiting a combination of multielectron cation and anion redox ' , Chemistry of Materials , vol. Articles ASAP .
dc.identifier.otherPURE: 283643260
dc.identifier.otherPURE UUID: 515303d5-dfc6-4f2d-9848-39c708f31f7b
dc.identifier.otherORCID: /0000-0001-7048-3982/work/131123305
dc.identifier.otherORCID: /0000-0003-1937-0936/work/131123509
dc.identifier.otherScopus: 85149954618
dc.descriptionThe authors thank the EPSRC for financial support (EP/R030472/1). A.G.M. thanks the Faraday Institution for financial support and training (grant number FITG033). A.R.A. thanks the Faraday Institution for financial support (FIRG018). The authors are grateful for the provision of beam time on B18 at the Diamond Light Source (as part of the Energy Materials Block Allocation Group SP25120). The authors also would like to acknowledge the EPSRC Light Element Analysis Facility Grant EP/T019298/1 and the EPSRC Strategic Equipment Resource Grant EP/R023751/1.en
dc.description.abstractThe development of multielectron redox-active cathode materials is a top priority for achieving high energy density with long cycle life in the next-generation secondary battery applications. Triggering anion redox activity is regarded as a promising strategy to enhance the energy density of polyanionic cathodes for Li/Na-ion batteries. Herein, K2Fe(C2O4)2 is shown to be a promising new cathode material that combines metal redox activity with oxalate anion (C2O42–) redox. This compound reveals specific discharge capacities of 116 and 60 mAh g–1 for sodium-ion batterie (NIB) and lithium-ion batterie (LIB) cathode applications, respectively, at a rate of 10 mA g–1, with excellent cycling stability. The experimental results are complemented by density functional theory (DFT) calculations of the average atomic charges.
dc.relation.ispartofChemistry of Materialsen
dc.rightsCopyright © 2023 The Authors. Published by American Chemical Society. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
dc.subjectQD Chemistryen
dc.titleK2Fe(C2O4)2 : an oxalate cathode for Li/Na ion batteries exhibiting a combination of multielectron cation and anion redoxen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.description.statusPeer revieweden

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