Fuel cell flow distributor design for improving durability and performance
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United States of America Patent
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Aug 28, 2001
Grant Date -
N/A
app pub date -
Feb 23, 1999
filing date -
Feb 23, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fuel cell includes a cathode having a first surface and a second surface, and an anode having a first surface and a second surface, with the anode underlying the cathode so that the first surface of the anode faces the second surface of the cathode. The fuel cell includes an electrolyte sandwiched between the first surface of the anode and the second surface of the cathode and a fuel distributor underlying the anode for directing a flow of fuel over the second surface of the anode. The fuel cell also has an oxidizing agent flow distributor having a plurality of flow path levels, the oxidizing agent flow distributor being adapted for passing an oxidizing agent toward the first surface of the cathode and transferring heat from the first surface of the cathode to the oxidizing agent as the oxidizing agent moves toward the cathode so that the temperature of the oxidizing agent reaching the first surface of the cathode is increased for minimizing thermal stresses upon the fuel cell.
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