Impact of the F– for O2– substitution in Na3V2(PO4)2F3–yOy on their transport properties and electrochemical performance
| hal.structure.identifier | Laboratoire de Chimie de la Matière Condensée de Paris [LCMCP] | |
| hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
| dc.contributor.author | FANG, Runhe | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
| hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
| dc.contributor.author | OLCHOWKA, Jacob | |
| 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] | |
| dc.contributor.author | NUERNBERG, Rafael | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI] | |
| hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
| dc.contributor.author | CROGUENNEC, Laurence | |
| hal.structure.identifier | Laboratoire de Chimie de la Matière Condensée de Paris [LCMCP] | |
| hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
| dc.contributor.author | CASSAIGNON, Sophie | |
| dc.date.issued | 2022-01-24 | |
| dc.identifier.issn | 2574-0962 | |
| dc.description.abstractEn | The series of polyanionic compounds Na3V 3+ 2-yV 4+ y(PO4)2F3-yOy (0 ≤ y ≤ 2) attracts much attention as positive electrode material for Na-ion batteries, because of its high operating potential and stable cycling performance. A series of nanospherical Na3V 3+ 2-yV 4+ y(PO4)2F3-yOy (NVPFOy) materials with y = 0.8, 1.35, 1.6 and 2 was synthesized using a solvothermal reaction and changes in the vanadium average oxidation state were fully characterized combining analyses by Raman and infrared spectroscopies and X-ray diffraction. Raman spectroscopy, beyond checking for the absence of a carbon coating, was in fact used for its sensitivity to the vanadium environment and turn out to be an efficient characterization technique to estimate the oxygen content within the Na3V 3+ 2-yV 4+ y(PO4)2F3-yOy family. The impact of the oxygen content on the transport properties was evaluated by electrochemical impedance spectroscopy. The material with y = 1.35 demonstrates the smallest electrical resistivity in the series, as well as the best rate capability and cyclability upon long-term cycling, despite no carbon coating and a high mass loading positive electrode. | |
| dc.description.sponsorship | Laboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076 | |
| dc.language.iso | en | |
| dc.publisher | ACS | |
| dc.subject.en | Na-ion batteries | |
| dc.subject.en | Polyanionic positive electrode materials | |
| dc.subject.en | Na3V2(PO4)2F3 | |
| dc.subject.en | Na3(VO)2(PO4)2F | |
| dc.subject.en | Transport properties | |
| dc.subject.en | Raman spectroscopy | |
| dc.title.en | Impact of the F– for O2– substitution in Na3V2(PO4)2F3–yOy on their transport properties and electrochemical performance | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/acsaem.1c03446 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | ACS Applied Energy Materials | |
| bordeaux.page | 1065-1075 | |
| bordeaux.volume | 5 | |
| bordeaux.issue | 1 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03573801 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03573801v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ACS%20Applied%20Energy%20Materials&rft.date=2022-01-24&rft.volume=5&rft.issue=1&rft.spage=1065-1075&rft.epage=1065-1075&rft.eissn=2574-0962&rft.issn=2574-0962&rft.au=FANG,%20Runhe&OLCHOWKA,%20Jacob&PABLOS,%20Chlo%C3%A9&NUERNBERG,%20Rafael&CROGUENNEC,%20Laurence&rft.genre=article |
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