Patents by Inventor Yassine Oumellal

Yassine Oumellal 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).

  • Preparation of hydrogen storage materials
    Patent number: 8021533
    Abstract: A candidate hydrogen storage material, M, capable of reaction with hydrogen to form a hydride, MHm (m=number of H atoms per formula unit), and to subsequently release hydrogen on demand, is processed electrochemically to enhance its absorption/desorption properties. For example, a magnesium hydride (MgH2) composition, arranged as a positive electrode, is reduced with lithium ions in a direct current electrolytic cell to form nanometer-size particles of magnesium (and lithium hydride). The cell operation may be reversed to oxidize magnesium to nanometer size particles of magnesium hydride. Thereafter, the nanometer-size particles of M/MHm adsorb and desorb hydrogen at higher yields and under more moderate storage processing conditions.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: September 20, 2011
    Assignees: GM Global Technology Operations LLC, Universite de Picardie, Jules Verne
    Inventors: Gholam-Abbas Nazri, Luc M. A. Aymard, Yassine Oumellal, Aline Dominique Rougier, Jean-Marie Tarascon
  • Lithium hydride negative electrode for rechargeable lithium batteries
    Patent number: 7736805
    Abstract: A lithium battery comprises a negative electrode composition that uses lithium hydride and a second metal. The negative electrode composition is activated by infusing lithium into particles of the second metal hydride to form lithium hydride and the second metal. As the battery is discharged lithium is released from the electrode and the second metal hydride formed. Charging of the battery re-infuses lithium into the negative electrode composition with the re-formation of lithium hydride.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 15, 2010
    Assignees: GM Global Technology Operations, Inc., Universite de Picardie, Jules Verne
    Inventors: Gholam-Abbas Nazri, Luc Aymard, Yassine Oumellal, Aline Rougier, Jean-Marie Tarascon
  • PREPARATION OF HYDROGEN STORAGE MATERIALS
    Publication number: 20090127129
    Abstract: A candidate hydrogen storage material, M, capable of reaction with hydrogen to form a hydride, MHm (m=number of H atoms per formula unit), and to subsequently release hydrogen on demand, is processed electrochemically to enhance its absorption/desorption properties. For example, a magnesium hydride (MgH2) composition, arranged as a positive electrode, is reduced with lithium ions in a direct current electrolytic cell to form nanometer-size particles of magnesium (and lithium hydride). The cell operation may be reversed to oxidize magnesium to nanometer size particles of magnesium hydride. Thereafter, the nanometer-size particles of M/MHm adsorb and desorb hydrogen at higher yields and under more moderate storage processing conditions.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 21, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., UNIVERSITY OF PICARDIE
    Inventors: Gholam-Abbas Nazri, Luc M.A. Aymard, Yassine Oumellal, Aline Dominique Rougier, Jean-Marie Tarascon
  • Lithium hydride negative electrode for rechargeable lithium batteries
    Publication number: 20080286652
    Abstract: A lithium battery comprises a negative electrode composition that uses lithium hydride and a second metal. The negative electrode composition is activated by infusing lithium into particles of the second metal hydride to form lithium hydride and the second metal. As the battery is discharged lithium is released from the electrode and the second metal hydride formed. Charging of the battery re-infuses lithium into the negative electrode composition with the re-formation of lithium hydride.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., UNIVERSITE de PICARDIE. JULES VERNE
    Inventors: Gholam-Abbas Nazri, Luc Aymard, Yassine Oumellal, Aline Rougier, Jean-Marie Tarascon