Electrolyte supported cell designed for longer life and higher power

摘要

A solid oxide fuel cell (SOFC) includes a cathode electrode, an anode electrode, and a solid oxide electrolyte located between the anode electrode and the cathode electrode. The cathode electrode is a porous ceramic layer infiltrated with a cathode catalyst material, and the anode electrode is a porous ceramic layer infiltrated with an anode catalyst material, and the electrolyte is a ceramic layer having a lower porosity than the anode and the cathode electrodes. A ceramic reinforcing region may be located adjacent to the riser opening in the electrolyte.

主权项

1. A method of making a solid oxide fuel cell, comprising:
providing a structure comprising a porous first ceramic layer, a porous second ceramic layer and a third ceramic layer electrolyte having a lower porosity than the first and the second ceramic layers; infiltrating an anode electrode catalyst into the porous first ceramic layer to form an anode electrode; infiltrating a cathode electrode catalyst into the porous second ceramic layer to form a cathode electrode, wherein the cathode electrode comprises a different material from the anode electrode; folding a portion of the third ceramic layer over a peripheral portion of the porous first ceramic layer to form a seal which prevents interaction of fuel and air; and placing the solid oxide fuel cell in a stack in which adjacent solid oxide fuel cells are separated by electrically conducting interconnects, wherein the stack is configured for power generation.