Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Determination of Optimum Binder Content in the Catalyst Layer with Different GDL for Anode of HT-PEMFC

고온 고분자 전해질막 연료전지 수소극 전극에서 서로 다른 가스 확산층에 따른 최적 바인더 함량 결정

  • CHUN, HYUNSOO (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology) ;
  • KIM, DO-HYUNG (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology) ;
  • JUNG, HYEON-SEUNG (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology) ;
  • PAK, CHANHO (Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology)
  • 전현수 (광주과학기술원 에너지융합대학원) ;
  • 김도형 (광주과학기술원 에너지융합대학원) ;
  • 정현승 (광주과학기술원 에너지융합대학원) ;
  • 박찬호 (광주과학기술원 에너지융합대학원)
  • Received : 2021.11.22
  • Accepted : 2022.02.08
  • Published : 2022.02.28
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Abstract

Two different gas diffusion layers having noticeable differences in micro-porous layer's (MPL's) crack were studied as a substrate for the gas diffusion electrode (GDE) with different binder/carbon (B/C) ratios in high-temperature polymer electrolyte fuel cell (Ht-PEMFC). As a result, the performance defined as the voltage at 0.2 A/cm2 and maximum power density from the single cells using GDEs from H23 C2 and SGL38 BC with different B/C ratios were compared. GDEs from H23 C2 showed a proportional increase of the voltage with the binder content on the other hand GDEs from SGL38 BC displayed a proportional decline of the voltage to the binder content. It was revealed that MPL crack influences the structure of catalyst layer in GDEs as well as affects the RCathode which is in close connection with the Ht-PEMFC performance.

Keywords

Acknowledgement

본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다(No. 20204010600340).

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