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RESEARCH PRODUCT
Characteristics of LiFePO4 obtained through a one step continuous hydrothermal synthesis process working in supercritical water
A. AimableD. AymesFrédéric BernardF. Le Crassubject
Materials scienceMineralogyOne-Step02 engineering and technology010402 general chemistry01 natural sciencesLiFePO4ImpurityHydrothermal synthesisGeneral Materials ScienceSupercritical water[CHIM.MATE]Chemical Sciences/Material chemistryGeneral ChemistryParticle sizeContinuous hydrothermal synthesis021001 nanoscience & nanotechnologyCondensed Matter PhysicsGrain sizeSupercritical fluid0104 chemical sciencesChemical engineeringAgglomerate[ CHIM.MATE ] Chemical Sciences/Material chemistryParticle-size distributionParticle size0210 nano-technologydescription
International audience; 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-03-09 |