Method for producing an infiltrated solid oxide fuel cell layer
AssigneePhillips 66 Company
InventorsYe Lin, Ying Liu, Mingfei Liu
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Abstract
A method of producing an infiltrated solid oxide fuel cell (SOFC) layer. The method begins by infiltrating a solution containing a solute into a SOFC layer to produce a primary SOFC layer. The primary SOFC layer is then dried in a heated environment, wherein the heated environment ranges in temperature from about 25° C. to about 100° C. to produce a dry primary SOFC layer. The dry primary SOFC layer is then cooled at a rate less than about 5° C./min to room temperature to produce a cooled primary SOFC layer. The cooled primary SOFC layer is then heated to a temperature greater than 500° C. then quenching to a temperature from about 10° C. to about 30° C. to produce an infiltrated SOFC layer.
Claims5
A method comprising:
- infiltrating a first solution containing a first solute into a solid oxide fuel cell (SOFC) cathode to produce a primary SOFC cathode;
- drying the primary SOFC cathode in a heated environment at a temperature from about 25° C. to about 100° C. for less than one hour to produce a dry primary SOFC cathode;
- cooling the dry primary SOFC cathode at a rate ranging from about 1° C./min to about 5° C./min to room temperature to produce a cooled primary SOFC cathode;
- heating the cooled primary SOFC cathode, to a temperature from about 600° C. to about 800° C. for less than twenty minutes then rapidly cooling to produce a room temperature primary SOFC cathode;
- infiltrating a second solution containing a second solute into the room temperature primary SOFC cathode to produce a secondary SOFC cathode;
- subjecting the secondary SOFC cathode to a heated environment at a temperature from about 25° C. to about 100° C. for less than one hour to produce a dry secondary SOFC cathode;
- cooling the heated secondary SOFC cathode at a rate ranging from about 1° C./min to about 5° C./min to 20° C. to produce a cooled SOFC cathode;
- and
- heating the cooled secondary SOFC cathode, to a temperature from about 600° C. to about 800° C. for less than twenty minutes then rapidly cooling to produce an infiltrated SOFC cathode.
Dependencies are inferred from the claim text.