METHOD FOR COATING METALLIC INTERCONNECT OF SOLID OXIDE FUEL CELL

摘要

A method for coating a metallic connector for solid oxide fuel cell is provided to improve electric conductance in the high temperature oxidizing atmosphere by coating cobalt forming a spinel layer through pulse plating on the surface of the metallic connector and to improve output performance and endurance of a solid oxide fuel cell by preventing the contamination of air pores. A method for coating a metallic connector for solid oxide fuel cell includes the steps of removing impurity adhered to the surface of a metallic connector by placing cobalt as an anode(2) and the metallic connector as a cathode(3), setting up an average current density in a cobalt plating solution of the room temperature, regulating peak current density, current application time and current interception time, and performing pulse plating. The peak current density is 100~250mA/cm^2, current application time is 0.002~0.005 seconds, and current interception time is 0.005~0.008 seconds.