Patents by Inventor Olivier Jan

Olivier Jan 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).

  • Positive electrode material for lithium-ion accumulator
    Patent number: 8999582
    Abstract: A composition including (a) a lithiated oxide of transition metals containing at least nickel, cobalt and aluminum and (b) a lithiated phosphate of at least one transition metal, the surface of which is at least partially covered by a layer of carbon. In the composition, the proportion by mass of the lithiated oxide of transition metals containing at least nickel, cobalt and aluminum is less than or equal to 10% of the weight of the composition, and the proportion by mass of the lithiated phosphate of at least one transition metal is greater than or equal to 90% of the weight of the composition. A lithium-ion or lithium-polymer type accumulator including at least one positive electrode containing this composition.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 7, 2015
    Assignee: SAFT Groupe SA
    Inventors: Cecile Tessier, Julien Breger, Olivier Jan, Philippe Biensan, Bridget Deveney, Kamen Nechev
  • Non-sintered nickel electrode for an alkaline electrolyte secondary electrochemical cell
    Patent number: 6274270
    Abstract: A non-sintered nickel electrode for alkaline electrolyte storage cells including a current collector and a paste containing an active material based on nickel hydroxide and a conductive material, wherein said conductive material is a lithium-containing cobalt and nickel oxide whose degree of oxidation obtained after electrochemical conditioning is stable after prolonged storage in the alkaline electrolyte.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: August 14, 2001
    Assignee: Alcatel
    Inventors: Claudette Audry, Michelle Baudry, Patrick Bernard, Olivier Jan