OLCHOWKA, Jacob; FANG, Runhe; BIANCHINI NUERNBERG, Rafael; PABLOS, Chloé; CARLIER, Dany; CASSAIGNON, Sophie; CROGUENNEC, Laurence

doi:10.1039/d2nr01080a

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Licence d’utilisation du document

OLCHOWKA, Jacob
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]
Réseau sur le stockage électrochimique de l'énergie [RS2E]

FANG, Runhe
Laboratoire de Chimie de la Matière Condensée de Paris [LCMCP]
Réseau sur le stockage électrochimique de l'énergie [RS2E]

BIANCHINI NUERNBERG, Rafael
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

Langue

Article de revue

Ce document a été publié dans

Nanoscale. 2022, vol. 14, n° 24, p. 8663-8676

Royal Society of Chemistry

Résumé en anglais

Na(3)V(2)(PO(4))(2)FO(2) is a promising candidate for practical use as a positive electrode material in Na-ion batteries thanks to its high voltage and excellent structural stability upon cycling. However, its limited intrinsic transport properties limit its performance at fast charge/discharge rates. In this work, two efficient approaches are presented to optimize the electrical conductivity of the electrode material: particle nanosizing and particle coating with an ionic liquid (IL). The former reveals that particle downsizing from micrometer to nanometer range improves the electronic conductivity by more than two orders of magnitude, which greatly improves the rate capability without affecting the capacity retention. The second approch dealing with an original surface modification by applying an IL coating strongly enhances the ionic mobility and offers new perspectives to improve the energy storage performance by designing the electrode materials' surface composition.< Réduire

DOI

http://dx.doi.org/10.1039/d2nr01080a

Project ANR

Laboratory of excellency for electrochemical energy storage - ANR-10-LABX-0076
Des liquides ioniques pour nano-structurer et fonctionnaliser la surface de matériaux d'électrode - ANR-21-CE50-0006

Origine

Importé de hal

Unités de recherche

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