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US 2019/0173096 A1Published application
Intermediate-Temperature Fuel Cell Tailored for Efficient Utilization of Methane
AssigneesGeorgia Tech Research Corporation, University of Kansas
InventorsMeilin Liu, Ik Whang Chang, Yu Chen, Ben M. Deglee, Brian Doyle, Franklin Tao, Lei Zhang
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Abstract
A solid oxide fuel cell capable of directly utilizing hydrocarbons as a fuel source at operating temperatures between 200° C. and 500° C. The anode, electrolyte, and cathode of the solid oxide fuel cell can include technologies for improved operation at temperatures between 200° C. and 500° C. The anode can include technologies for improved direct utilization of hydrocarbon fuel sources.
Claims36
A fuel cell comprising:
- an anode comprising a doped ceria catalyst;
- an electrolyte comprising:
- an oxygen ion transporting solid oxide fuel cell (SOFC) electrolyte material;
- and
- a proton transporting SOFC electrolyte material;
- and
- a cathode;
- wherein the ratio of oxygen ion transporting SOFC electrolyte material to proton transporting SOFC electrolyte material is approximately 1:10;
- and
- wherein the fuel cell is configured to directly utilize hydrocarbon fuel at temperatures of 500° C. or less.
7 more elements
-18. (canceled)
(canceled)
A fuel cell comprising:
- an anode comprising a doped ceria catalyst;
- an electrolyte;
- and
- a cathode;
- wherein the fuel cell is configured to directly utilize hydrocarbon fuel while operating with a current density of at least 200 mA/cm2 and an open circuit voltage of 0.75 V at temperatures of 500° C. or less for two hours or more without deactivation.
2 more elements
-33. (canceled)
-60. (canceled)
Dependencies are inferred from the claim text.