Fuel cell cathode with redox couple
AssigneeTexaco Ovonic Fuel Cell LLC
InventorsStanford R. Ovshinsky, Srinivasan Venkatesan, Boyko Aladjov, Subhash K. Dhar, Kevin Fok, Thomas Hopper
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Abstract
Fuel cell oxygen electrode and instant startup fuel cells employing such oxygen electrode. The oxygen electrode operates through the mechanism of redox couples which uniquely provide multiple degrees of freedom in selecting the operating voltages available for such fuel cells. Such oxygen electrodes provide the fuel cells in which they are used a “buffer” or “charge” of oxidizer available within the oxygen electrode at all times.
Claims20
In a fuel cell, an oxygen electrode including a cathode active material having oxygen storage capacity comprising:
- a manganese oxide redox couple which provides for said oxygen storage capacity via reduction/oxidation between two different manganese oxide valency states.
In a fuel cell, said fuel cell including a cathode active material having oxygen storage capacity comprising:
- a manganese oxide redox couple which provides for said oxygen storage capacity via reduction/oxidation between two different manganese oxide valency states.
Dependencies are inferred from the claim text.