hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
dc.contributor.author | PABLOS, Chloé | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | OLCHOWKA, Jacob | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
dc.contributor.author | PETIT, Emmanuel | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | MINART, Gaël | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | DUTTINE, Mathieu | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | WEILL, François | |
hal.structure.identifier | Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
dc.contributor.author | MASQUELIER, Christian | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | CARLIER, Dany | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
dc.contributor.author | CROGUENNEC, Laurence | |
dc.date.issued | 2023-05-11 | |
dc.identifier.issn | 0897-4756 | |
dc.description.abstractEn | The Na-ion battery technology appears as a reliable, sustainable, and environmentally friendly alternative to the Li-ion one, especially for stationary energy storage. As for the Li-ion technology, the safety aspect is of high importance to ensure large-scale development. In this work, we studied the thermal stability and decomposition mechanisms of carbon-coated Na3V2(PO4)2F3 and two fluorine-rich phases belonging to the solid-solution Na3V3+2–yV4+y(PO4)2F3–yOy (y = 0.07 and y = 0.12), that family of compounds being often considered among the most promising positive electrode materials for Na-ion batteries. This study shows the good thermal stability of these polyanionic materials and reveals that a low O2– for F– substitution has a very limited effect on the thermal stability of fully reintercalated materials recovered in the discharged state of the battery, whereas it has a beneficial impact for highly deintercalated ones, obtained by in-depth charges. Furthermore, whatever the state of charge and the oxygen content in NaxV2(PO4)2F3–yOy (1 ≤ x ≤ 3 and y = 0, 0.07 and 0.12), the thermal degradation leads, quite unexpectedly, to the formation of crystalline Na3V3+2(PO4)2F3 in addition to an amorphous phase. The fluorination of the partial oxygen for fluorine substituted material was clearly demonstrated by X-ray diffraction (XRD) and solid state nuclear magnetic resonance spectroscopy (NMR) on materials recovered after differential scanning calorimetry (DSC) analyses. The formation of a fully sodiated crystalline phase from the thermal degradation of the material obtained in charged states of the battery, with or without the presence of electrolyte, was never reported before. | |
dc.description.sponsorship | Laboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076 | |
dc.description.sponsorship | Des liquides ioniques pour nano-structurer et fonctionnaliser la surface de matériaux d'électrode - ANR-21-CE50-0006 | |
dc.language.iso | en | |
dc.publisher | American Chemical Society | |
dc.title.en | Thermal stability of Na3-xV2(PO4)2F3-yOy: influence of F- for O2- substitution and degradation mechanisms | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1021/acs.chemmater.3c00539 | |
dc.subject.hal | Chimie/Matériaux | |
dc.description.sponsorshipEurope | NA ION MATERIALS AS ESSENTIAL COMPONENTS TO MANUFACTURE ROBUST BATTERY CELLS FOR NON-AUTOMOTIVE APPLICATIONS | |
bordeaux.journal | Chemistry of Materials | |
bordeaux.page | 4078-4088 | |
bordeaux.volume | 35 | |
bordeaux.issue | 10 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-04104136 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-04104136v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2023-05-11&rft.volume=35&rft.issue=10&rft.spage=4078-4088&rft.epage=4078-4088&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=PABLOS,%20Chlo%C3%A9&OLCHOWKA,%20Jacob&PETIT,%20Emmanuel&MINART,%20Ga%C3%ABl&DUTTINE,%20Mathieu&rft.genre=article | |