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US 6,713,203 B2Granted
Fuel cell
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsShuji Sato, Koji Okazaki
Life of this patent
Estimating the term…
Abstract
A tube having a passage for passage of a temperature-regulating medium therethrough has a surface covered with an elastic insulating layer which is coated with an insulating lubricant. The tube is inserted in a through hole which is defined in a fuel cell stack in the direction in which generator cells are stacked.
Claims10
A fuel cell comprising:
- a fuel cell stack including a plurality of generator cells stacked and electrically connected in series, each of said generator cells comprising an electrolyte electrode assembly having an anode electrode for being supplied with a fuel gas, a cathode electrode for being supplied with an oxidizing agent gas, and an electrolyte interposed between said anode electrode and said cathode electrode, and a pair of separators having a fuel gas supply path for supplying said fuel gas and an oxidizing agent gas supply path for supplying said oxidizing agent gas, and sandwiching said electrolyte electrode assembly;
- said fuel cell stack having a through hole defined therein in a direction in which said generator cells are stacked, and a tube inserted through said through hole, said tube having a passage for passage of a temperature regulating medium therethrough;
- said fuel cell stack including at least one of an elastic insulator and an insulating lubricant interposed between said tube and an inner wall of said through hole.
Dependencies are inferred from the claim text.