Characteristics of LiFePO4 obtained through a one step continuous hydrothermal synthesis process working in supercritical water - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue Solid State Ionics Année : 2009

Characteristics of LiFePO4 obtained through a one step continuous hydrothermal synthesis process working in supercritical water

Résumé

The olivine-like material LiFePO4 was prepared via a continuous hydrothermal synthesis process working from subcritical to supercritical water conditions. The influence of some processing parameters–temperature and reaction time–was investigated in terms of material purity, grain size and morphology. Supercritical conditions were found to be attractive to synthesize in one step a well-crystallized material without impurities. The primary particles size was in the nanometric range. They showed a natural tendency to form micron size agglomerates, which were supposed to be the cause of the limited capacity, as demonstrated through a cross study using laser particle size distribution analysis, electrochemical measurements and XRD at different Li contents.

Domaines

Matériaux

Dates et versions

cea-00413065 , version 1 (03-09-2009)

Identifiants

Citer

Anne Aimable, Daniel Aymes, Frédéric A. Bernard, Frédéric Le Cras. Characteristics of LiFePO4 obtained through a one step continuous hydrothermal synthesis process working in supercritical water. Solid State Ionics, 2009, 180 (11-13), pp.861-866. ⟨10.1016/j.ssi.2009.02.019⟩. ⟨cea-00413065⟩
84 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More