Title:
【発明の名称】燃料電池のための双極集電体
Document Type and Number:
Japanese Patent JP2002521797
Kind Code:
A
Abstract:
The invention concerns a bipolar collector for a solid polymer electrolyte fuel cell whereof the electronic conduction is provided by uniformly distributed metal cylinders, and whereof the tips penetrate into the electrodes. The minimal distance between two cylinders ranges between 2 and 4 mm and the tightness between the two surfaces is provided by a polymer plate wherein the cylinders are inserted. Said design is applicable to plates incorporating ducts for transporting fluids or plates whereon are arranged, on either side, microporous structures serving as fluid distributor. Said type of collector is characterised in that the ohmic drop is very low, even for current density levels of the order of 1 A/cm2.
Inventors:
Guy Bronoel
Serge Besse
Jean-Francois Fovarque
Serge Besse
Jean-Francois Fovarque
Application Number:
JP2000561670A
Publication Date:
July 16, 2002
Filing Date:
October 08, 1998
Export Citation:
Assignee:
Sorapek
International Classes:
C25D5/06; C25D5/26; C25D7/00; H01M8/02; H01M8/10; (IPC1-7): H01M8/02; C25D5/06; C25D5/26; C25D7/00; H01M8/10
Attorney, Agent or Firm:
Minoru Torisu (1 person outside)