Patents by Inventor Robert J. Selman

Robert J. Selman 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).

  • Carbon-carbon composite particles, their preparation and use therefore as negative electrode for li-ion batteries
    Patent number: 8318355
    Abstract: A composite of particles comprising a high crystallinity carbon and a low crystallinity carbon, wherein the low crystallinity carbon exhibits an average lattice constant d=(002) of 0.350 nm or more and a crystallite size L=(002) in the diffraction of C axis of 25 nm or less, as characterized by wide-angle X ray diffraction measurements, the high crystallinity carbon exhibits an average lattice constant d=(002) of 0.338 nm or less and a crystallinity size L=(002) in the diffraction of C axis of 40 nm or more, as characterized by wide-angle X-ray diffraction measurements, the high crystallinity carbon having at least 50% of its external surface embedded within or surrounded by a matrix of low crystallinity carbon.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: November 27, 2012
    Assignee: Hydro-Quebec
    Inventors: Hossein Maleki, Robert J. Selman, Abdelbast Guerfi, Elisabeth Dupuis, Karim Zaghib