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US 2008/0166622 A1Published application
Seal gasket-integrated membrane-electrode assembly and fuel cell
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsFumishige Shizuku, Hiroo Yoshikawa, Kenji Sato
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Abstract
A seal gasket-integrated membrane-electrode assembly includes: a power generation portion that undergoes electrochemical reactions between hydrogen and oxygen; and a seal gasket provided on an outer peripheral edge of the power generation portion. The first center in the thickness direction of the power generation portion is offset toward an anode electrode of the membrane-electrode assembly from the second center in the thickness direction of the seal gasket.
Claims16
A seal gasket-integrated membrane-electrode assembly comprising:
- a power generation portion that undergoes electrochemical reactions between hydrogen and oxygen;
- and
- a seal gasket that is provided on an outer peripheral edge of the power generation portion,
- wherein a first center in a thickness direction of the power generation portion is offset toward an anode electrode provided in the membrane-electrode assembly from a second center in the thickness direction of the seal gasket.
1 more element
A fuel cell comprising:
- a membrane-electrode assembly that provides with a power generation portion undergoing electrochemical reactions between hydrogen and oxygen;
- a seal gasket that is provided on an outer peripheral edge of the power generation portion;
- separators that sandwiches the membrane-electrode assembly therebetween;
- a fuel gas channel layer that is disposed between an anode electrode of the membrane-electrode assembly and one of the separators, and through which a fuel gas is spread over the anode electrode;
- and
- an oxidizing gas channel layer that is disposed between a cathode electrode of the membrane-electrode assembly and the other of the separators, and through which an oxidizing gas is spread over the cathode electrode,
- wherein the fuel gas channel layer is formed thinner than the oxidizing gas channel layer.
4 more elements
Dependencies are inferred from the claim text.