Patents Assigned to Centr National de la Recherche Scientifique
  • Sulphonated polyimides, membranes prepared with them, and a fuel cell device that includes these membranes
    Patent number: 6425944
    Abstract: The invention relates to sulphonated polyimides, notably of formula (I) The invention also relates to an ion exchange membrane that includes such a polyimide and a fuel cell that includes such a membrane. The membranes of the invention have excellent durability and low cost and the fuel cells can be used, in particular, in electric vehicles.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: July 30, 2002
    Assignees: Commissriat a l'Energie Atomique, Centr National de la Recherche Scientifique
    Inventors: Sylvain Faure, Michel Pineri, Pierre Aldebert, Régis Mercier, Bernard Sillion