기체확산층의 마이크로다공층 구조 설계에 따른 고분자전해질형 연료전지의 성능 및 내구성에 관한 실험적 연구

다국어 초록 (Multilingual Abstract)

The Gas Diffusion Layer(GDL) is a main component of a Polymer Electrolyte Membrane Fuel Cell(PEMFC) as a passage of not only hydrogen and air, used as fuels, but also water for humidifying membrane. Ion conductivity of Nafion<SUP>®</SUP> used as a membrane of PEMFC is proportional to amount of water in membrane. However, excessive water causes water flooding, which decreases the performance of a PEMFC by blocking pores in the GDL. Therefore, for enhanced performance of a PEMFC, it is important to concern how to design the micro porous layer (MPL) of the GDL, which is a key component for water management. Moreover, its durability has to be also considered for the commercialization of a PEMFC. In this study, as design parameters of MPL, a less hydrophobic MPL is inserted between the normal MPL and the substrate of the GDL, and the additional pore path is formed inside the MPL. Finally, the effects of these structural changes in the MPL on performance and durability are investigated.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험 장치
• 3. 실험 결과 및 분석
• 4. 결론
• References