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http://dx.doi.org/10.7234/composres.2016.29.5.243

Development of Thermoplastic Carbon Composite Bipolar Plates for High-temperature PEM Fuel Cells  

Lim, Jun Woo (LANL-CBNU Engineering Institute Korea, Chonbuk National University)
Kim, Minkook (School of Mechanical Aerospace & Systems Engineering, KAIST)
Lee, Dai Gil (School of Mechanical Aerospace & Systems Engineering, KAIST)
Publication Information
Composites Research / v.29, no.5, 2016 , pp. 243-248 More about this Journal
Abstract
Although thermoset carbon fiber composite bipolar plates not only have high mechanical properties but also high corrosion resistance in acid environment, high manufacturing cost and low bulk electrical conductivity are the biggest obstacle to overcome. In this research, thermoplastic polymer is employed for the matrix of carbon composite bipolar plate to increase both the manufacturing productivity and bulk electric conductivity of the bipolar plate. In order to increase the electrical conductivity and strength, plain type carbon fabric rather than chopped or unidirectional fibers is used. Also nano particles are embedded in the thermoplastic matrix to increase the bulk resistance of the bipolar plate. The area specific resistance and the mechanical strength of the developed bipolar plate are measured with respect to the environmental temperature and stack compaction pressure.
Keywords
Carbon composite; Thermoplastic; PEEK(Polyether ether ketone); Bipolar plate; Proton exchange membrane fuel cell;
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