METHOD FOR COATING PROTECTIVE LAYER ON SURFACE OF METAL BIPOLAR PLATE WITH GAS FLOW CHANNEL FOR PLANAR SOLID OXIDE FUEL CELL

摘要

PURPOSE: A coating method on the surface of a metal separator with a protective film is provided to prevent the formation of oxide from metal contained in a separator, thereby preventing the degradation of conductivity of a separator. CONSTITUTION: A coating method on the surface of a metal separator with a protective film comprises: a step of manufacturing slurry by adding raw material powder, and a plasticizer into a solvent; a step of manufacturing a film by tape casting the slurry; a step of laminating the film one side of a metal separator(2); and a step of generating unevenness by pressing on one side of the metal separator after heating the metal separator. The raw material powder is one or more selected from a group consisting of MnCoO, MnCoFeO, and LaNiCoO.