NGUYEN, Long; BROUX, Thibault; SANZ CAMACHO, Paula; DENUX, Dominique; BOURGEOIS, Lydie; BELIN, Stéphanie; IADECOLA, Antonella; FAUTH, François; CARLIER-LARREGARAY, Dany; OLCHOWKA, Jacob; MASQUELIER, Christian; CROGUENNEC, Laurence

doi:10.1016/j.ensm.2019.04.010

Metadatos

Licencia de uso del documento

NGUYEN, Long
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
Réseau sur le stockage électrochimique de l'énergie [RS2E]

BROUX, Thibault
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
Réseau sur le stockage électrochimique de l'énergie [RS2E]
Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]

SANZ CAMACHO, Paula
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Réseau sur le stockage électrochimique de l'énergie [RS2E]

Idioma

Article de revue

Este ítem está publicado en

Energy Storage Materials. 2019, vol. 20, p. 324-334

Elsevier

Resumen en inglés

Polyanionic materials have been intensively studied as promising active materials for positive electrodes in Na-ion batteries thanks to their excellent stability upon cycling and the fast ionic mobility in their structural framework. Among them, Na3V2(PO4)2F3 and Na3(VO)2(PO4)2F are two of the most promising ones due to their high voltages for Na+-ion extraction and their high energy densities: 500 mWh g−1 and 495 mWh g−1, respectively. Here, we study the formation mechanism as well as the stability of these phases in aqueous media and the possible use of a washing step in water in order to remove undesirable impurities formed during the synthesis. Furthermore, the origin of the extra capacity observed at the high voltage region for Na3V2(PO4)2F3 and Na3V2(PO4)2F1.5O1.5 was studied by operando X-ray absorption spectroscopy.< Leer menos

DOI

http://dx.doi.org/10.1016/j.ensm.2019.04.010

Proyecto ANR

Laboratory of excellency for electrochemical energy storage
Batteries à ions sodium pour des robots télécommandés - ANR-13-DESC-0001

Orígen

Importado de Hal

Centros de investigación

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026