Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application

Polymer electrolyte membrane fuel cell (PEMFC) is expected to be one of the major power sources for future passenger vehicles since it features a high power density at a relatively low operating temperature of about 80◦C. There are several key components in PEMFC and one of them is bipolar plate. Th...

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Main Author:	Ahmad, Mohd Shakir
Format:	Thesis
Language:	English English
Published:	2015
Subjects:	T Technology (General) TP Chemical technology
Online Access:	http://eprints.utem.edu.my/id/eprint/16825/1/Additional%20Of%20Metal%20Filler%20On%20Graphite%2C%20Carbon%20Black%2C%20Polypropylene%20Composite%20As%20Bipolar%20Plate%20Material%20For%20PEMFC%20Application.pdf http://eprints.utem.edu.my/id/eprint/16825/2/Additional%20of%20metal%20filler%20on%20graphite%20carbon%20black%20polypropylene%20composite%20as%20bipolar%20plate%20material%20for%20PEMFC%20application.pdf
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id	my-utem-ep.16825
record_format	uketd_dc
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Selamat, Mohd Zulkefli
topic	T Technology (General) TP Chemical technology
spellingShingle	T Technology (General) TP Chemical technology Ahmad, Mohd Shakir Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application
description	Polymer electrolyte membrane fuel cell (PEMFC) is expected to be one of the major power sources for future passenger vehicles since it features a high power density at a relatively low operating temperature of about 80◦C. There are several key components in PEMFC and one of them is bipolar plate. This bipolar plate is a multi-functional component. It provides the electrical connection from cell-to-cell and it separates the reactive gases. The known problem related to bipolar plate is the corrosion, weight and high cost. Hence, composite bipolar plate based on thermoplastic material is introduced and solved the general disadvantages of traditional bipolar plate. But, it still has a main limitation which is electrical conductivity and mechanical properties such as brittleness.. Through this research, the effect of secondary filler on electrical and mechanical properties is studied in order to overcome the main limitation of composite bipolar plate. The combination of metal and carbon filler also been studied for the purpose of improvement electrical and mechanical properties of G/PP composite bipolar plate. This study also would propose the fabrication process in producing composite material bipolar plate. The materials used in producing bipolar plate are greatly affecting its final properties. As for binder material, Polypropylene (PP) is used and for main filler material Graphite (Gr) is used. While, second filler used are Iron (Fe), Nickel (Ni) and Carbon Black (CB). The based ratio for this bipolar plate is 80%wt of filler and 20% wt of binder. The addition second filler is varying from 5%wt to 30%wt from the total of 80%wt. The fabrication of sample is done through compression molding method. The measurement that has been done is electrical conductivity, flexural strength, bulk density, shore hardness and microstructures. From result, the addition of CB has shown the most improvement in term of electrical conductivity (218.43 S/cm) and has good mechanical properties (38.03 MPa, flexural strength). While, the addition of Fe and Ni it not quite good but still Fe is better candidate than Ni. From this finding, another sample is introduced which is the combination of Fe and CB as part of second filler and it show the greater result which is 367.59 S/cm in electrical and 44.57 MPa in flexural strength. This result has shown a great improvement in electrical conductivity and acceptable mechanical properties. This framework of study can be used as reference in furthering the research.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Ahmad, Mohd Shakir
author_facet	Ahmad, Mohd Shakir
author_sort	Ahmad, Mohd Shakir
title	Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application
title_short	Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application
title_full	Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application
title_fullStr	Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application
title_full_unstemmed	Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application
title_sort	additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for pemfc application
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty Of Mechanical Engineering
publishDate	2015
url	http://eprints.utem.edu.my/id/eprint/16825/1/Additional%20Of%20Metal%20Filler%20On%20Graphite%2C%20Carbon%20Black%2C%20Polypropylene%20Composite%20As%20Bipolar%20Plate%20Material%20For%20PEMFC%20Application.pdf http://eprints.utem.edu.my/id/eprint/16825/2/Additional%20of%20metal%20filler%20on%20graphite%20carbon%20black%20polypropylene%20composite%20as%20bipolar%20plate%20material%20for%20PEMFC%20application.pdf
_version_	1747833897628991488
spelling	my-utem-ep.168252022-04-20T11:03:42Z Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application 2015 Ahmad, Mohd Shakir T Technology (General) TP Chemical technology Polymer electrolyte membrane fuel cell (PEMFC) is expected to be one of the major power sources for future passenger vehicles since it features a high power density at a relatively low operating temperature of about 80◦C. There are several key components in PEMFC and one of them is bipolar plate. This bipolar plate is a multi-functional component. It provides the electrical connection from cell-to-cell and it separates the reactive gases. The known problem related to bipolar plate is the corrosion, weight and high cost. Hence, composite bipolar plate based on thermoplastic material is introduced and solved the general disadvantages of traditional bipolar plate. But, it still has a main limitation which is electrical conductivity and mechanical properties such as brittleness.. Through this research, the effect of secondary filler on electrical and mechanical properties is studied in order to overcome the main limitation of composite bipolar plate. The combination of metal and carbon filler also been studied for the purpose of improvement electrical and mechanical properties of G/PP composite bipolar plate. This study also would propose the fabrication process in producing composite material bipolar plate. The materials used in producing bipolar plate are greatly affecting its final properties. As for binder material, Polypropylene (PP) is used and for main filler material Graphite (Gr) is used. While, second filler used are Iron (Fe), Nickel (Ni) and Carbon Black (CB). The based ratio for this bipolar plate is 80%wt of filler and 20% wt of binder. The addition second filler is varying from 5%wt to 30%wt from the total of 80%wt. The fabrication of sample is done through compression molding method. The measurement that has been done is electrical conductivity, flexural strength, bulk density, shore hardness and microstructures. From result, the addition of CB has shown the most improvement in term of electrical conductivity (218.43 S/cm) and has good mechanical properties (38.03 MPa, flexural strength). While, the addition of Fe and Ni it not quite good but still Fe is better candidate than Ni. From this finding, another sample is introduced which is the combination of Fe and CB as part of second filler and it show the greater result which is 367.59 S/cm in electrical and 44.57 MPa in flexural strength. This result has shown a great improvement in electrical conductivity and acceptable mechanical properties. This framework of study can be used as reference in furthering the research. 2015 Thesis http://eprints.utem.edu.my/id/eprint/16825/ http://eprints.utem.edu.my/id/eprint/16825/1/Additional%20Of%20Metal%20Filler%20On%20Graphite%2C%20Carbon%20Black%2C%20Polypropylene%20Composite%20As%20Bipolar%20Plate%20Material%20For%20PEMFC%20Application.pdf text en public http://eprints.utem.edu.my/id/eprint/16825/2/Additional%20of%20metal%20filler%20on%20graphite%20carbon%20black%20polypropylene%20composite%20as%20bipolar%20plate%20material%20for%20PEMFC%20application.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=96159 mphil masters Universiti Teknikal Malaysia Melaka Faculty Of Mechanical Engineering Selamat, Mohd Zulkefli 1. Ahmad M.S., Selamat M.Z, Daud M.A.M, Yunus, I.K.M., Azman M.S., 2013, Effect of Different Filler Materials in the Development of Bipolar Plate Composite for Polymer Electrolyte Membrane Fuel Cell (PEMFC), Applied Mechanics and Materials, Volume 315 Pp 226-230. 2. Andrew L. D., 2006, The role of carbon in fuel cells, Journal of Power Sources, volume 156, pp. 128–141. 3. Banerjee P., Broja M. M, 1995, Conducting Polyaniline Nanoparticle Blends with Extremely Low Percolation Thresholds, Macromolecules, Volume 28, Issue 11, pp 3940–3943. 4. Boudenne A., Ibos L., Fois M., Majeste´ J.C., Ge´hin E., 2005, Electrical and thermal behavior of polypropylene filled with copper particles, Composites: Part A, volume 36, pp. 1545–1554. 5. Caglar B., Fischer P., Kauranen P., Karttunen M., Elsner P., 2014, Development of carbon nanotube and graphite filled polyphenylene sulfide based bipolar plates for all-vanadium redox flow batteries, Journal of Power Sources, Volume 256, Pp 88-95 6. 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Additional of metal filler on graphite/carbon black/polypropylene composite as bipolar plate material for PEMFC application

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