Patents Represented by Attorney, Agent or Law Firm Harry C. Baker
  • Fuel cell manager
    Patent number: 6541941
    Abstract: A controller controls a switch bank which can shunt a voltage source in parallel with one or more fuel cells in a stack. By controlling the voltage of the voltage source, the current through the fuel cells is directly controlled. By increasing the anode potential of the fuel cell through control of the voltage source, poisons deposited on the electrocatalyst are removed, thereby rejuvenating the fuel cells. Fuel cells in a stack can be treated in turn, causing a reduction of the effects of electrocatalyst poison on stack performance.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: April 1, 2003
    Assignee: Estco Battery Management, Inc.
    Inventors: William Adams, Christopher L. Gardner, James H. Dunn