Fuel cell stack assembly
AssigneeGM Global Technology Operations LLC
InventorJeffrey A. Rock
Life of this patent
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Abstract
A fuel cell stack assembly includes first and second bipolar plates, an active area membrane, and an optional subgasket. The first bipolar plate defines a first plurality of tunnels and the second bipolar plate defines a second plurality of tunnels. The second plurality of tunnels may be engaged with and nested between the first plurality of tunnels. The active area membrane may be disposed within an internal periphery of a subgasket between the first and second bipolar plates wherein the subgasket may, optionally, be positioned between the first and second plurality of tunnels.
Claims17
A fuel cell stack assembly comprising:
- a first bipolar plate defining a first plurality of tunnels;
- a second bipolar plate defining a second plurality of tunnels, the second plurality of tunnels being engaged with and nested between the first plurality of tunnels;
- an active area membrane disposed between the first and second bipolar plates and disposed within an internal periphery of a subgasket;
- wherein the subgasket is positioned between the first and second plurality of coolant tunnels.
A fuel cell stack assembly comprising:
- a first bipolar plate defining a first plurality of coolant and or reactant tunnels;
- a second bipolar plate defining a second plurality of coolant and or reactant tunnels, the second plurality of coolant and or reactant tunnels being engaged with and nested between the first plurality of coolant tunnels;
- an active area membrane disposed between the first and second bipolar plates and disposed between the first and second bipolar plates.
Dependencies are inferred from the claim text.