DELOBEL, Bruno; LARCHER, Dominique; BLACH, Jean-François; CROGUENNEC, Laurence; MÉNÉTRIER, Michel; SIMON, Evelyne; BAUDRIN, Emmanuel

doi:10.1016/j.ssi.2010.03.004

Métadonnées

Licence d’utilisation du document

DELOBEL, Bruno
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
European Space Research and Technology Centre [ESTEC]

LARCHER, Dominique
Laboratoire réactivité et chimie des solides - UMR CNRS 7314 UPJV [LRCS]
Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]

BLACH, Jean-François
Advanced Lithium Energy Storage Systems - ALISTORE-ERI [ALISTORE-ERI]
UCCS Équipe Couches Minces & Nanomatériaux

Langue

Article de revue

Ce document a été publié dans

Solid State Ionics. 2010, vol. 181, n° 13-14, p. 623-630

Elsevier

Résumé en anglais

We describe here a new synthesis route for the direct and controlled precipitation of monodispersed nanometric LiMO2 (M = Co, Fe) powders in alcoholic media tackling the difficulty to simultaneously hydrolyze lithium and transition metal ions in aqueous medium. Combining results from XRD, Raman, TEM, TGA analyses, we found that the alcohol nature as well as the absolute and relative Li+ and Mn+ concentrations are important parameters controlling the formation of such materials. These parameters can be reliably tuned and influence the phase purity, crystallite sizes and Li/M stoichiometry for both HT-“LiCoO2” and α-“LiFeO2” type materials. The optimization and rationalization of this synthetic route appear as a very promising tool to prepare well controlled/characterized oxides to further study the interrelationships between structural, chemical and reactivity issues as a function of the crystallite size, as suggested by some of the present results.< Réduire

Mots clés en anglais

LiFeO2

LiCoO2

Precipitation

Alcoholic media

Nanomaterials

Lithium batteries

Métadonnées

Licence d’utilisation du document

One-step precipitation of nanometric LiMO<sub>2</sub> powders (M = Co, Fe) in alcoholic media

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche