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Mixed anion chemistry as a way to tune the electrochemical properties of vanadium oxyfluoride phosphates in alkali-ion batteries

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorWERNERT, Romain
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
dc.contributor.authorNGUYEN, Long
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
hal.structure.identifierAdvanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]
dc.contributor.authorCARLIER, Dany
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
hal.structure.identifierAdvanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]
dc.contributor.authorCROGUENNEC, Laurence
dc.date.issued2023
dc.identifier.issn1293-2558
dc.description.abstractEnAlkali vanadium fluoride phosphates such as Tavorite LiVPO4F, Na3V2(PO4)2F3 and KTP-type KVPO4F are attractive materials for positive electrodes in rechargeable alkali-ion batteries. In such compounds, the presence of fluoride ions further increases the electrode's electrochemical potential compared to their phosphate counterparts such as Na3V2(PO4)3. Furthermore, the fluoride anions in these structures can be fully or partially substituted by oxide anions, leading to the formation of V4+=O vanadyl centres and a great number of mixed valence and mixed anion compositions. The oxygen substitution for fluorine has a considerable impact on the structural, electronic, and electrochemical properties of the resulting compounds. In this review, the similarities and peculiarities in the crystal structures, electronic structures, and electrochemical properties of the three analogous LiVPO4F–LiVPO4O, Na3V2(PO4)2F3–Na3V2(PO4)2FO2, and KVPO4F−KVPO4O material families will be compared in detail. Such a comparison is expected to provide an insightful understanding on the factors governing the structure and properties of vanadium oxyfluoride phosphates.
dc.description.sponsorshipVers des batteries innovantes K-ion - ANR-19-CE05-0026
dc.description.sponsorshipLaboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076
dc.language.isoen
dc.publisherElsevier
dc.subject.enVanadium oxyfluoride phosphate
dc.subject.enMixed anion compounds
dc.subject.enAlkali-ion batteries
dc.title.enMixed anion chemistry as a way to tune the electrochemical properties of vanadium oxyfluoride phosphates in alkali-ion batteries
dc.typeArticle de revue
dc.identifier.doi10.1016/j.solidstatesciences.2023.107358
dc.subject.halChimie/Matériaux
bordeaux.journalSolid State Sciences
bordeaux.page107358
bordeaux.volume146
bordeaux.peerReviewedoui
hal.identifierhal-04285717
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04285717v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Sciences&rft.date=2023&rft.volume=146&rft.spage=107358&rft.epage=107358&rft.eissn=1293-2558&rft.issn=1293-2558&rft.au=WERNERT,%20Romain&NGUYEN,%20Long&CARLIER,%20Dany&CROGUENNEC,%20Laurence&rft.genre=article


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