Centre National De La Recherche Scientifique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Universite De Picardie Jules Vernes

UniversitÉ De Picardie Jules Verne

Sylvain Boulineau

Christian Masquelier

Sébastien Launois

Laurence Croguennec

Nikita Hall

Loïc Simonin

A method for preparing a NaV(PO)Fmaterial, including at least the steps: a) reducing the vanadium oxide, VO, under a reducing atmosphere in the absence of elementary carbon and in the presence of at least one phosphate anion precursor in order to form vanadium phosphate, VPO; and b) exposing, under an inert atmosphere, a mixture of the VPOmaterial obtained in step a) with an effective amount of sodium fluoride, NaF, and at least one hydrocarbon- and oxygen-containing compound which is a source of elementary carbon, to temperature conditions that are favourable for calcining said mixture so as to form said NaV(PO)Fcompound. Also, a related electrode material, an electrode and a secondary sodium battery using the presented material.

Method for preparing a NA3V2(PO4)2F3 particulate material

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Amiens, France

Sylvain Boulineau