화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2013년 가을 (10/23 ~ 10/25, 대구 EXCO)
권호 19권 2호, p.1651
발표분야 에너지
제목 A study on vanadium crossover using pore filling membranes for vanadium redox flow batteries
초록 Novel pore-filling membranes with low vanadium crossover were developed for the application to a vanadium redox flow battery. The polymer electrolytes consisting of the whole hydrocarbon materials were introduced into porous hydrocarbon substrates and crosslink-polymerized by radical polymerization in this work. The thickness of the prepared membranes was controlled between 20 and 25 micrometers to extremely lower membrane resistances. Finally, film-like polymer electrolyte membranes were prepared. The prepared pore-filling membranes are able to drastically decrease vanadium co-ion crossover through the membrane because the porous substrate suppresses a swelling factor of highly functionalized electrolytes in water media such as liquid phase operation conditions. The physico-chemical properties of the prepared membranes such as swelling behavior, membrane area resistance, vanadium co-ion crossover were investigated in correlation with the electrolyte composition. Also the thermal and the structural property of the prepared pore-filling membranes were evaluated.
저자 이미순, 최영우, 신경희, 양태현
소속 한국에너지기술(연)
키워드 VRB; pore filling membrane; crossover
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