| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.961 |
| 발표분야 |
[특별 심포지엄] 차세대 에너지용 고분자 소재기술 심포지엄(고분자부문위원회) |
| 제목 |
Interlocking interfaces: bi-layered membrane for polymer electrolyte fuel cells and redox flow batteries |
| 초록 |
Physically interlocked interface of two incompatible polymeric membranes provides a means to combine two different functions for advanced energy devices. Recently, we invented a highly interlocked interface by combining spray coating, extraction and dip coating processes. The physically interlocked membranes show a strong interfacial binding which can withstand an internal stress under wet expansion. More interestingly, ion transport across the interlocking interface is not hindered, indicating that a molecular scale intimate contact is achieved. In this talk, two case studies on the interlocking interface are presented. The first example is a bi-layered membrane of a cost-effective hydrocarbon membrane and a thin perfluorinated ionomer for enhancing the durability of polymer electrolyte fuel cells. The other one is a bi-layered membrane of a hydrocarbon membrane and a perfluorinated ionomber-based protection layer for improving chemical stability of vanadium redox flow batteries. These studies demonstrate that the introduction of thin perfluorinated ionomer layer with a help of the interlocking interface improves some poor properties of the hydrocarbon membrane. |
| 저자 |
김희탁, 육성민, 김수현
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| 소속 |
한국과학기술원 |
| 키워드 |
Interlocking interface; Membrane; Redox flow batteries; Polymer electrolyte fuel cells
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| E-Mail |
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| 원문파일 |
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