한국신재생에너지학회:학술대회논문집
- 2009.11a
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- Pages.132-132
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- 2009
Experimental Analysis of GDL Degradation in PEM Fuel Cell
고분자전해질형 연료전지 가스확산층의 내구 성능 저하에 관한 실험적 분석
- Ha, Tae-Hun ;
- Park, Jae-Man ;
- Cho, Jun-Hyun ;
- Min, Kyoung-Doug ;
- Lee, Eun-Suk ;
- Jung, Ji-Young ;
- Kim, Do-Hun ;
- Jin, Yong-Won ;
- Lee, Dae-Han
- 하태훈 (서울대학교 기계항공공학부 대학원) ;
- 박재만 (서울대학교 기계항공공학부 대학원) ;
- 조준현 (서울대학교 기계항공공학부 대학원) ;
- 김한상 (서울대학교 기계항공공학부) ;
- 민경덕 (서울대학교 기계항공공학부) ;
- 이은숙 (협진아이앤씨) ;
- 정지영 (협진아이앤씨) ;
- 김도훈 (협진아이앤씨) ;
- 진용원 (협진아이앤씨)
- Published : 2009.11.25
Abstract
To achieve the commercialization of PEM fuel cell, the durability problem must be solved. Recently, many researchers have focused on this durability problem and degradation studies about membrane and electrode have been reported. But durability characteristics of gas diffusion layer is not much reported yet. Durability of GDL is very important to maintain the performance of PEM fuel cell because the main function of GDL is a path of fuel and water and the GDL degradation causes the loss of the GDL function. In this study, the degradation of GDL, especially, the mechanical degradation process was investigated with the leaching test. The effect of water dissolution was observed through the test and the amount of GDL degradation was measured with various measurement methods such as weight measurement, static contact angle measurement, scanning electron microscope. After 2,000 hours test, the GDL showed structural damage and loss of hydrophobicity.