Patents Examined by Anthnoy Skapars
  • Electrochemical fuel cell stack with humidification section located upstream from the electrochemically active section
    Patent number: 5382478
    Abstract: An electrochemical fuel cell stack has a humidification section located upstream from the electrochemically active section. The inlet fuel and oxidant streams are introduced into the humidification section without first being directed through the electrochemically active section. The upstream location of the humidification section in the stack enables the number of manifold openings in the active section to be reduced, thereby increasing the area available for the electrochemical reaction.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: January 17, 1995
    Assignee: Ballard Power Systems Inc.
    Inventors: Clarence Y. Chow, Boguslav M. Wozniczka