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http://dx.doi.org/10.7234/composres.2019.32.5.222

Development of Carbon Composite Bipolar Plates for PEMFC  

Lim, Jun Woo (Graduate School of Flexible and Printable Electronics, LANL-CBNU Engineering Institute)
Publication Information
Composites Research / v.32, no.5, 2019 , pp. 222-228 More about this Journal
Abstract
The proton exchange membrane fuel cell (PEMFC) system has many potential uses as an environmentally friendly power source. Carbon fiber composite bipolar plates are highly corrosion resistant and have high specific strength and stiffness in acidic environments, however, the relatively low electrical conductivity is a major issue which reduces the efficiency of PEMFC. In this study, electrically conductive particles (graphite powder and carbon black) are applied to carbon-epoxy composite prepregs to reduce the electrical resistance of the bipolar plates. The electrical resistance and mechanical properties are measured using conventional test methods, and a unit cell performance evaluation of developed carbon composite bipolar plates is performed to compare with the conventional bipolar plate.
Keywords
Carbon composite; Carbon black; Graphite powder; Bipolar plate; Proton exchange membrane fuel cell;
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