METHOD FORMANUFACTUREING SEPARATOR OF FUEL CELL

• Main Authors: CHUNG SOO JIN, KIM SE HEON, AHN SEUNG GYUN, PARK SOON TAE, SHIN CHANG HYUN
• Format: Patent
• Language: English; Korean
• Published: 30.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The present invention relates to a method for manufacturing a fuel cell separator. The method includes: an unevenness forming step of forming unevenness of a fine size on a surface of a metal base material; and a coating layer forming step of forming a coating layer by coating the surface of the metal base material on which the unevenness is formed with carbon. By using the manufacturing method, the coating layer is formed after forming unevenness on the surface of the metal base material, and thus, it is possible to obtain an effect of improving the adhesion between the metal base material and the coating layer and water discharge properties. 본 발명은 연료전지용 분리판의 제조방법에 관한 것으로, 금속 모재의 표면에 미세한 크기의 요철을 형성하는 요철 형성단계와, 상기 금속 모재에서 요철이 형성된 표면에 탄소를 코팅하여 코팅층을 형성하는 코팅층 형성단계를 포함한다. 이러한 제조방법으로, 금속 모재의 표면에 요철을 형성한 후 코팅층을 형성하여 금속 모재와 코팅층의 밀착력과 물배출성을 향상시킬 수 있는 효과를 얻을 수 있다.