Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

Surface treatment of bipolar plates for PEMFC (Proton Exchange Membrane Fuel Cell) application

PEMFC (Proton Exchange Membrane Fuel Cell)용 바이폴라 플레이트 표면개질

  • Jeon, Gwang-Yeon (Dept. of Hydrogen & Fuel Cell Technology, Dongshin University) ;
  • Yun, Young-Hoon (Dept. of Hydrogen & Fuel Cell Technology, Dongshin University) ;
  • Cha, In-Su (Dept. of Hydrogen & Fuel Cell Technology, Dongshin University)
  • 전광연 (동신대학교 수소에너지학과) ;
  • 윤영훈 (동신대학교 수소에너지학과) ;
  • 차인수 (동신대학교 수소에너지학과)
  • Published : 2008.06.30
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Abstract

Stainless steel 304 and 316 plates were deposited with the multi-layered coatings of titanium film (0.1um) and gold film (1-2um) by an electron beam evaporation method. The XRD patterns of the stainless steel plates modified with the multi-layered coatings showed the crystalline phases of the external gold film and the stainless steel substrate. Surface microstructural morphologies of the stainless steel bipolar plates modified with multi-layered coatings were observed by AFM and FE-SEM images. The external gold films formed on the stainless steel plates showed microstructure of grains of about 100nm diameter. The grain size of the external surface of the stainless steel plates increased with the gold film thickness. The electrical resistance and water contact angle of the stainless steel bipolar plates covered with multi-layered coatings were examined with the thickness of the external gold film.

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