Patents by Inventor Abdelaziz Naji

Abdelaziz Naji 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).

  • Additives for improving the reversibility of a carbon electrode of a lithium ion secondary electrochemical generator
    Patent number: 6489063
    Abstract: The invention relates to additives to improve the reversibility of a carbon electrode of a lithium ion secondary electrochemical generator. These additives are composed of cyclic or non-cyclic &agr;-halogenated esters such as &agr;-bromo-&ggr;-butyrolactone or methyl chloroformiate. They may be added to the electrolyte at a rate of 0.5 to 3% by volume or adsorbed on the carbon electrode to form a passivation film on said electrode during the first use of the generator.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: December 3, 2002
    Assignee: Centre National d'Etudes Spatiales
    Inventors: Denis Billaud, Abdelaziz Naji, Patrick Willmann