ELECTRODE-SUPPORTED TUBULAR SOLID-OXIDE ELECTROCHEMICAL CELL
First Claim
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1. A tubular solid-oxide electrochemical cell comprising:
- a first porous electrode configured in a tubular shape, the first porous electrode comprising a first mixed ionically/electronically conductive composite material of a solid-oxide electrolyte substance and a first electrochemically active substance;
an electrolyte disposed as a thin-layer on at least part of a surface of the first porous electrode, the electrolyte comprising the solid-oxide electrolyte substance; and
a second porous electrode disposed on at least part of a surface of the electrolyte, the second porous electrode comprising a second mixed ionically/electronically conductive composite material of the solid-oxide electrolyte substance and a second electrochemically active substance.
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Abstract
Electrode-supported tubular solid-oxide electrochemical cells suitable for use in electrochemical chemical synthesis and processes for manufacturing such are provided.
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Citations
29 Claims
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1. A tubular solid-oxide electrochemical cell comprising:
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a first porous electrode configured in a tubular shape, the first porous electrode comprising a first mixed ionically/electronically conductive composite material of a solid-oxide electrolyte substance and a first electrochemically active substance; an electrolyte disposed as a thin-layer on at least part of a surface of the first porous electrode, the electrolyte comprising the solid-oxide electrolyte substance; and a second porous electrode disposed on at least part of a surface of the electrolyte, the second porous electrode comprising a second mixed ionically/electronically conductive composite material of the solid-oxide electrolyte substance and a second electrochemically active substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A tubular solid-oxide electrochemical cell made by a process comprising the steps of:
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extruding an electrode dough in a tubular shape to form a first electrode, the electrode dough comprising a solid-oxide electrolyte substance, a first electrochemically active substance, a carbon-based pore forming substance, a binder and a solvent; sintering the extruded first electrode to cause the carbon-based pore forming substance to burn off and for pores in the first electrode; forming an electrolyte onto at least part of a surface of the sintered first electrode, the electrolyte comprising a thin-layer of the solid-oxide electrolyte substance; and forming a second electrode onto at least part of a surface of the electrolyte, the second electrode comprising the solid-oxide electrolyte substance and a second electrochemically active substance. - View Dependent Claims (18, 19, 20)
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21. A process for manufacturing a tubular solid-oxide electrochemical cell, the process comprising:
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forming an electrode dough comprising a solid-oxide electrolyte substance, a first electrochemically active substance, a first carbon-based pore forming substance, a first binder and a first solvent; extruding the electrode dough in a tubular shape to form a first electrode; sintering the extruded first electrode; forming an electrolyte slurry comprising the solid-oxide electrolyte substance and a second solvent; coating the electrolyte slurry onto at least part of a surface of the sintered first electrode; sintering the electrolyte coating; forming an electrode slurry comprising the solid-oxide electrolyte substance, a second electrochemically active substance, a second carbon-based pore forming substance, and a third solvent; coating the electrode slurry onto at least part of a surface of the sintered electrolyte; and sintering the electrode coating. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification