Process Or Means For Producing, Recycling, Or Treating Reactant, Feedstock, Product, Or Electrolyte Patents (Class 429/408)
Treatment of the electrolyte (Class 429/409)
Purification (Class 429/410)
Humidification or dehumidification (Class 429/413)
Recycling unconsumed reactant (Class 429/415)
Producing reactant (Class 429/416)
Characterized by control or measuring means or method (Class 429/427)
  • Polymer electrolyte fuel cell system and operation method thereof
    Patent number: 7722996
    Abstract: A polymer electrolyte fuel cell system is disclosed, comprising a fuel cell having a predetermined power generation portion configured to operate at a predetermined temperature to generate an electric power using a fuel gas and an oxidizing gas supplied to said fuel cell, and a humidifier configured to humidify the fuel gas and the oxidizing gas, wherein the humidifier is configured to humidify the fuel gas and the oxidizing gas to allow the fuel gas and the oxidizing gas to have dew points higher than the predetermined temperature, the humidified fuel gas and oxidizing gas having the dew points higher than the operating temperature being supplied to the fuel cell.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: May 25, 2010
    Assignee: Panasonic Corporation
    Inventors: Susumu Kobayashi, Toshihiro Matsumoto, Takeshi Tomizawa, Katsuzou Kokawa, Teruhisa Kanbara