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dc.contributor.authorOuld, Darren MC
dc.contributor.authorMenkin, Svetlana
dc.contributor.authorSmith, Holly E
dc.contributor.authorRiesgo-Gonzalez, Victor
dc.contributor.authorJónsson, Erlendur
dc.contributor.authorO'Keefe, Christopher A
dc.contributor.authorCoowar, Fazlil
dc.contributor.authorBarker, Jerry
dc.contributor.authorBond, Andrew D
dc.contributor.authorGrey, Clare P
dc.contributor.authorWright, Dominic S
dc.date.accessioned2022-05-09T09:12:19Z
dc.date.available2022-05-09T09:12:19Z
dc.date.issued2022-08-08
dc.date.submitted2022-02-08
dc.identifier.issn1433-7851
dc.identifier.otheranie202202133
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/336842
dc.description.abstractSodium-ion batteries (SIBs) are a promising grid-level storage technology due to the abundance and low cost of sodium. The development of new electrolytes for SIBs is imperative since it impacts battery life and capacity. Currently, sodium hexafluorophosphate (NaPF6 ) is used as the benchmark salt, but is highly hygroscopic and generates toxic HF. This work describes the synthesis of a series of sodium borate salts, with electrochemical studies revealing that Na[B(hfip)4 ]⋅DME (hfip=hexafluoroisopropyloxy, Oi PrF ) and Na[B(pp)2 ] (pp=perfluorinated pinacolato, O2 C2 (CF3 )4 ) have excellent electrochemical performance. The [B(pp)2 ]- anion also exhibits a high tolerance to air and water. Both electrolytes give more stable electrode-electrolyte interfaces than conventionally used NaPF6 , as demonstrated by impedance spectroscopy and cyclic voltammetry. Furthermore, they give greater cycling stability and comparable capacity to NaPF6 for SIBs, as shown in commercial pouch cells.
dc.languageen
dc.publisherWiley
dc.subjectResearch Article
dc.subjectResearch Articles
dc.subjectBatteries
dc.subjectElectrolytes
dc.subjectMain Group Synthesis
dc.subjectSEI
dc.subjectSodium-Ion Batteries
dc.titleSodium Borates: Expanding the Electrolyte Selection for Sodium-Ion Batteries.
dc.typeArticle
dc.date.updated2022-05-09T09:12:18Z
prism.publicationNameAngew Chem Int Ed Engl
dc.identifier.doi10.17863/CAM.84261
rioxxterms.versionofrecord10.1002/anie.202202133
rioxxterms.versionAO
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidMenkin, Svetlana [0000-0003-3612-4542]
dc.contributor.orcidSmith, Holly E [0000-0002-3389-6259]
dc.contributor.orcidRiesgo-Gonzalez, Victor [0000-0002-2433-8562]
dc.contributor.orcidJónsson, Erlendur [0000-0002-7776-0484]
dc.contributor.orcidO'Keefe, Christopher A [0000-0003-3115-0768]
dc.contributor.orcidBond, Andrew D [0000-0002-1744-0489]
dc.contributor.orcidGrey, Clare P [0000-0001-5572-192X]
dc.contributor.orcidWright, Dominic S [0000-0002-9952-3877]
dc.identifier.eissn1521-3773
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) ERC (835073)
cam.issuedOnline2022-05-03


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