Patents by Inventor Pierre Strobel

Pierre Strobel 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).

  • Insertion compounds based on manganese oxide usable as the positive electrode active material in a lithium battery
    Patent number: 5700442
    Abstract: The invention relates to the preparation of insertion compounds based on manganese oxide, usable as the positive electrode active material in a lithium battery.These compounds in the hatched area of FIG. 1 can be prepared by reacting in the solid state a manganese oxide powder MnO.sub.2 -.beta., having a specific surface below 7 m.sup.2 /g and an average grain size below 10 .mu.m, with a powder of a lithium compound such as Li.sub.2 CO.sub.3 or LiOH, at a temperature of 150.degree. to 500.degree. C. for an adequate time to convert the .beta.-MnO.sub.2 into manganese and lithium oxide having a lacunary or stoichiometric spinel structure.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: December 23, 1997
    Assignees: Commissariat a l'Energie Atomique, Electricite de France Service National, Bollore Technologies S.A., Sadacem, S.A.
    Inventors: Didier Bloch, Frederic Le Cras, Pierre Strobel
  • Method of fabrication of an alloy containing an alkali metal and/or an alkaline-earth metal
    Patent number: 4049443
    Abstract: The method consists in subjecting a mixture of an alkali nitride and/or an alkaline-earth nitride to thermal decomposition in vacuo in the presence of at least one metallic component with which it is desired to alloy the alkali metal and/or the alkaline-earth metal, the metals thus brought together are melted and the alloy thus obtained is homogenized.
    Type: Grant
    Filed: January 9, 1976
    Date of Patent: September 20, 1977
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Andre Hatterer, Claude Oberlin, Pierre Strobel