Patents Assigned to Ballard Power Systems
  • Evaporative edge cooling of a fuel cell
    Publication number: 20030118880
    Abstract: A method and apparatus for cooling an electrochemical fuel cell which comprises coolant channels extending along the edge of the fuel cell, adjacent to the active area whereby the fuel cell is cooled by evaporating a liquid coolant in the coolant channels. The coolant may then be condensed and recirculated through the coolant channels. Efficient cooling of the fuel cell may be enhanced by reducing the boiling point of the coolant by reducing the pressure across the coolant channels.
    Type: Application
    Filed: November 25, 2002
    Publication date: June 26, 2003
    Applicant: Ballard Power Systems
    Inventors: Joerg Zimmerman, Olen R. Vanderleeden, Leslie Bartha