METHOD FOR COATING METALLIC INTERCONNECT OF SOLID OXIDE FUEL CELL

摘要

Disclosed is a method for coating a metallic interconnect for a solid oxide fuel cell (SOFC), the method including the steps of: carrying out pre-treatment for removing impurities adhered on a surface of the metallic interconnect; and carrying out pulse plating with cobalt as an anode, and the metallic interconnect as a cathode, in which an average current density (I_a) is set in a room-temperature cobalt plating solution, and a maximum current density (I_p), a current-on time (T_on) and a current-off time (T_off) are adjusted based on I_a=I_p×T_on/(T_on+T_off). Through the disclosed method, it is possible to obtain a metallic interconnect having a coating surface which has a high electrical conductivity and a high chrome volatilization inhibiting property and can minimize the occurrence of micro-cracks and micro-pores, thereby improving the performance of the SOFC.