Electrolyte supported cell designed for longer life and higher power
First Claim
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1. A method of making a solid oxide fuel cell (SOFC) comprising:
- providing a solid oxide electrolyte having a thickness of 25-175 μ
m and comprising an active region and an inactive region surrounding the active region, the inactive region comprising a fuel inlet riser opening and a fuel outlet riser opening;
forming an anode electrode on a first side of the electrolyte in the active region, and forming a cathode electrode on a second side of the electrolyte in the active region; and
depositing a ceramic support layer on the electrolyte, the-ceramic support layer located around at least one of a periphery of the electrolyte or at least partially around perimeters of the fuel inlet and fuel outlet riser openings,wherein the ceramic support layer comprises a multi-component material comprising a stabilized zirconia and alumina.
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Abstract
A solid oxide fuel cell (SOFC) that includes an anode electrode, a cathode electrode and a solid oxide electrolyte having a fuel inlet riser opening and a fuel outlet riser opening. The electrolyte is located between the anode electrode and the cathode electrode. The SOFC also includes a ceramic support layer on the electrolyte. The ceramic support is layer located around the at least one of a periphery of the electrolyte or at least partially around perimeters of the fuel inlet and fuel outlet riser openings. The ceramic support layer comprises a multi-component material comprising yttria stabilized zirconia (YSZ) and alpha alumina.
105 Citations
20 Claims
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1. A method of making a solid oxide fuel cell (SOFC) comprising:
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providing a solid oxide electrolyte having a thickness of 25-175 μ
m and comprising an active region and an inactive region surrounding the active region, the inactive region comprising a fuel inlet riser opening and a fuel outlet riser opening;forming an anode electrode on a first side of the electrolyte in the active region, and forming a cathode electrode on a second side of the electrolyte in the active region; and depositing a ceramic support layer on the electrolyte, the-ceramic support layer located around at least one of a periphery of the electrolyte or at least partially around perimeters of the fuel inlet and fuel outlet riser openings, wherein the ceramic support layer comprises a multi-component material comprising a stabilized zirconia and alumina. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of making a solid oxide fuel cell (SOFC) comprising:
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providing a solid oxide electrolyte having a thinckness of 25-175 μ
m and comprising an active region and an inactive region surrounding the active region, the inactive region comprising a fuel inlet riser opening and a fuel outlet riser opening;forming an anode electrode on a first side of the electrolyte and a cathode electrode on a second side of the electrolyte; and depositing a stabilized zirconia and alumina ceramic support layer on the inactive region such that the ceramic support layer at least partially surrounds the fuel inlet and fuel outlet riser openings, wherein substantially all of the ceramic support layer is disposed outside of the active region. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification