Niemzig, Oliver:
Entwicklung eines portablen PEM-Brennstoffzellensystems mit Bipolarplatten aus einem elektronisch leitfähigen thermoplastischen Compound-Material
Duisburg, 2005
2005dissertation
Mechanical EngineeringFaculty of Engineering » Maschinenbau und Verfahrenstechnik
Title:
Entwicklung eines portablen PEM-Brennstoffzellensystems mit Bipolarplatten aus einem elektronisch leitfähigen thermoplastischen Compound-Material
Author:
Niemzig, Oliver
Place of publication:
Duisburg
Year of publication:
2005
Extent:
XIV, 250 S.
DuEPublico 1 ID
Library shelfmark:
Note:
Duisburg, Essen, Univ., Diss., 2005

Abstract:

In order to meet the cost targets of PEM fuel cells for commercialization significant cost reductions of cell stack components like membrane/electrode assemblies and bipolar plates have become key aspects of research and development. Central topics of his work are the bipolar plates and humidification for portable applications. Best results concerning conductivity of an extensive screening of a variety of carbon polymer compounds with polypropylene as matrix could be achieved with the carbon black/graphite/polypropylene-base system. Successful tests of this material in a fuel cell stack could be performed as well as the proof of suitability concerning material- and manufacturing costs. Dependent on application a decrease of material cost to 2 ¤/kg to 1,8 ¤/kW seems to be possible. Finally bipolar plates consisting of a selected carbon polymer compound were successfully integrated and tested in a 20-cell stack which was implemented in a portable PEFC-demonstrator unit with a power output between 50 and 150 W.