Patents by Inventor Annie Le Gal La Salle

Annie Le Gal La Salle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lithium and vanadium oxide, a preparation method thereof and the use of same as an active electrode material
    Patent number: 7396614
    Abstract: A lithium and vanadium oxide is described having the formula Li1+xV3O8, wherein 0.1?×?0.25. The oxide has a monoclinic crystalline structure and comprises non-agglomerated grains in the form of monocrystalline pellets having a length L of between 1 and 100 ?m, a width W such that 4<L/W<100, and a thickness t such that 4 L/t<100, with t<W, the elongation axis of the pellets being axis b of the monoclinic cell. The oxide may be prepared by mixing the Li and V precursors, without grinding or compression, heating said mixture to 565° C.-585° C. and de-agglomerating the product obtained. The oxide is suitable for use as an active material for the positive electrode of a lithium battery.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: July 8, 2008
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Séverine Jouanneau, Dominique Guyomard, Annie Le Gal La Salle, Alain Verbaere, Stéphane Lascaud, Nelly Bourgeon, Marc Deschamps