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Effects of binder type and heat treatment temperature on physical properties of a carbon composite bipolar plate for PEMFCs
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  • Journal title : Carbon letters
  • Volume 14, Issue 2,  2013, pp.110-116
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2013.14.2.110
 Title & Authors
Effects of binder type and heat treatment temperature on physical properties of a carbon composite bipolar plate for PEMFCs
Kang, Dong-Su; Roh, Jea-Seung;
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 Abstract
This study investigated a developed process for producing a composite bipolar plate having excellent conductivity by using coal tar pitch and phenol resin as binders. We used a pressing method to prepare a compact of graphite powder mixed with binders. Resistivity of the impregnated compact was observed as heat treatment temperature was increased. It was observed that pore sizes of the GCTP samples increased as the heat treatment temperature increased. There was not a great difference between the flexural strengths of GCTP-IM and CPR-IM as the heat treatment temperature was increased. The resistivity of GPR700-IM, heat treated at using phenolic resin as a binder, was which was best value in this study. In addition, it is expected that with the appropriate selection of carbon powder and further optimization of process we can produce a composite bipolar plate which has excellent properties.
 Keywords
polymer electrolyte membrane fuel cell;bipolar plate;graphite;resistivity;flexural strength;
 Language
English
 Cited by
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