Electrophoretically Coated Wire Meshes as Current Collectors for Solid Oxide Fuel Cell

Metal wire meshes were coated with electrode materials such as La0.8Sr0.2NbO3 and NiO/YSZ by electrophoretic deposition (EPD) and used as current collectors for a solid oxide fuel cell. The current interrupt analysis for the electrodes attached with the wire mesh current collectors clearly indicated that coated wire meshes remarkably reduced the cathodic and anodic resistances, especially polarization component, compared to using the uncoated meshes. This reduction of the electrode resistances is due to the fact that EPD coating of the metal meshes increases effective contact area and/or points between the wire mesh and electrode surface. A single cell with the EPD coated meshes exhibited higher I-V characteristics compared to that with the uncoated meshes as expected from the result of the electrode resistance measurements.