Browse > Article
http://dx.doi.org/10.5762/KAIS.2011.12.4.1999

A study on the electrical and mechanical properties of PEMFC bipolar plate by thermoplastic composite injection molding process  

Yoon, Yong-Hun (Dept. of Chemical Engineering SoonChunHyang University)
Kim, Dong-Hak (Dept. of Chemical Engineering SoonChunHyang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.4, 2011 , pp. 1999-2004 More about this Journal
Abstract
This research aims to develop polymer composites which can be used for PEMFC bipolar plate by injection molding process. Considering the moldability and stiffness, we used LCP(Liquid crystal polymer) as base resin. In order to improve electrical conductivity and mechanical properties, we chose carbon black, and both synthetic graphite and expanded graphite. The composites with different recipe are prepared for injection molding of PEMFC bipolar plate and CAE(Computer Aided Engineering) analysis was performed to predict melt flow and fiber orientation We did successfully fabricate the ASTM specimens by injection molding, and measure the electrical conductivity of the samples by using four point probe device. We measured mechanical properties such as flexural strength, flexural modulus and Izod impact strength. Conclusively, the electrical conductivity increased with increasing additive concentration, but both flexural strength and Izod impact strength decreased due to the brittle nature of carbon-based additives.
Keywords
PEMFC; Separator; Injection molding; CAE analysis; LCP; ASTM;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 King, Julia A., Johnson, Beth A., Via, Michael D., Ciarkowski, Charles J., "Electrical conductivity of carbon-filled polypropylene-based resins", Journal of applied polymer science, Vol.112 no.1, pp. 425-433, 2009   DOI
2 Dhakate, S.R., Mathur, R.B., Sharma, S., Borah, M., Dhami, T.L., "Influence of Expanded Graphite Particle Size on the Properties of Composite Bipolar plates for Fuel Cell Applicaiton", Energy & fuels : an American Chemical Society journal, Vol.23 no.1, pp. 934-941, 2009   DOI
3 정재엽, 김동학 "전산모사 프로그램을 이용한 E-MOLD의 Heating Line 배치의 최적화 설계에 관한 연구", 한국산학기술학회논문지, Vol.9 no.6, pp. 1754-1759, 2008   과학기술학회마을   DOI
4 김영균, 김동학, 손영곤 "무광식 패턴을 갖는 자동차 내장부품인 HD Switch Penel의 제조 및 전사성 평가", 한국산학기술학회논문지, Vol.10 no.11, pp. 3280-3286, 2009
5 이광용, "고분자 복합재료를 이용한 PEMFC용 분리판의 특성 연구" 경희대학교 대학원, 2008
6 연료전지연구센터, "고분자 전해질 연료전지의 구성과 응용", 한국에너지기술원, 2001
7 김남훈, "하이브리드 카본이 충전된 열가소성복합재 분리판의 특성 연구" 전북대학교 대학원, 2009
8 윤용훈, 임승현, 김동학, "전도성 복합재료를 이용한 PEMFC용 separator 사출성형 제조 및 전기전도성 평가", 한국산학기술학회논문지 제 11권 제 4호 별쇄, pp.1361-1366   과학기술학회마을   DOI
9 Chen, S.C., Cheng, C.K., Shih, M.Y., Lin, Y.C., Peng, H.S., "Effects of Molding Parameters on the Through-Plane Resistance of Injection Molded Composite Polymer Bipolar Plate", Journal of polymer engineering, Vol.29 no. 1/3, pp. 121-134, 2009   DOI
10 Liao, S.H., Yen, C.Y., Weng, C.C., Lin, Y.F., Ma, C.C.M., Yang, C.H. Tsai, M.C., Yen, M.Y., Hsiao, M.C., Lee, S.J., Xie, X.F., Hsiao, Y.H., "Preparation and properties of carbon nanotube/polypropylene nanocomposite bipolar plates for polymer electrolyte membrane fuel cells" vol.185 no.2, pp. 1225-1232, 2008   DOI
11 H.S. Kim, "A study on the characteristics of carbon composite bipolar plates for PEMFC ", MS. Dissertation, Hanbat National Univ., Daejeon, Korea, 2005