Patents by Inventor Antoine Sonnet

Antoine Sonnet 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).

  • Method of charging a lithium storage cell having a carbone anode
    Patent number: 5604418
    Abstract: The present invention provides a method of charging a carbon-anode lithium storage cell, which method comprises a first step in which a constant current is imposed and during which the voltage across said storage cell is allowed to increase until it reaches a reference value, and then a second step in which said reference voltage is imposed and said current decreases. The method of the invention is characterized in that, at each instant, said reference voltage is equal to the sum of the end-of-charge voltage of the cell plus the product of the current multiplied by the ohmic resistance of the cell.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: February 18, 1997
    Assignee: Alcatel Alsthom Compagnie Generale D'Electricite
    Inventors: Xavier Andrieu, Philippe Poignant, Antoine Sonnet