Microwave-assisted reactive sintering and lithium ion conductivity of Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 solid electrolyte

Leopold Hallopeau 1 Damien Bregiroux 1 Gwenaëlle Rousse 2 David Portehault 1 Philippe Stevens 3 Gwenaëlle Toussaint 3 Christel Laberty-Robert 1
1 MHN - Matériaux Hybrides et Nanomatériaux
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
2 Chimie du solide et de l'énergie
3 EDF - EDF
Abstract : Li1.3Al0.3Ti1.7(PO4)3 (LATP) materials are made of a three−dimensional framework of TiO6 octahedra and PO4 tetrahedra, which provides several positions for Li+ ions. The resulting high ionic conductivity is promising to yield electrolytes for all-solid-state Li-ion batteries. In order to elaborate dense ceramics, conventional sintering methods often use high temperature (≥1000 °C) with long dwelling times (several hours) to achieve high relative density (∼90%). In this work, an innovative synthesis and processing approach is proposed. A fast and easy processing technique called microwave-assisted reactive sintering is used to both synthesize and sinter LATP ceramics with suitable properties in one single step. Pure and crystalline LATP ceramics can be achieved in only 10 min at 890 °C starting from amorphous, compacted LATP's precursors powders. Despite a relative density of 88%, the ionic conductivity measured at ambient temperature (3.15 × 10−4 S cm−1) is among the best reported so far. The study of the activation energy for Li+ conduction confirms the high quality of the ceramic (purity and crystallinity) achieved by using this new approach, thus emphasizing its interest for making ion-conducting ceramics in a simple and fast way.
Type de document :
Article dans une revue
Journal of Power Sources, Elsevier, 2018, 378, pp.48-52. 〈10.1016/j.jpowsour.2017.12.021〉
Domaine :
Liste complète des métadonnées

Littérature citée [28 références]  Voir  Masquer  Télécharger
https://hal.sorbonne-universite.fr/hal-01668662
Contributeur : Gestionnaire Hal-Upmc <>
Soumis le : mercredi 20 décembre 2017 - 11:00:06
Dernière modification le : vendredi 31 août 2018 - 09:08:42

Fichier

Manuscript.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

UPMC | LCMCP | LCMCP-MHN | INC-CNRS | PSL | CHIMIE-SOLIDE

Citation

Leopold Hallopeau, Damien Bregiroux, Gwenaëlle Rousse, David Portehault, Philippe Stevens, et al.. Microwave-assisted reactive sintering and lithium ion conductivity of Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 solid electrolyte. Journal of Power Sources, Elsevier, 2018, 378, pp.48-52. 〈10.1016/j.jpowsour.2017.12.021〉. 〈hal-01668662〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

215

Téléchargements de fichiers

39

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD