Title of article :
Plasma treatment of the carbon fiber bipolar plate for PEM fuel cell
Author/Authors :
Ha Na Yu، نويسنده , , Jun Woo Lim، نويسنده , , Min Kook Kim، نويسنده , , Dai Gil Lee، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
8
From page :
1911
To page :
1918
Abstract :
A Polymer Electrolyte Membrane Fuel Cell or Proton Exchange Membrane (PEM) fuel cell stack is composed of a Gas Diffusion Layer (GDL), an Membrane Electrode Assembly (MEA), and bipolar plates. The electrical resistance of the bipolar plates for a PEM fuel cell should be very low, so that the electricity generated in the fuel cell is conducted through the bipolar plates with minimum electrical loss. In this study, a plasma etching treatment was developed to decrease the contact resistance between a GDL and continuous-carbon/epoxy composite bipolar plate. The treatment removes the resin-rich layer of the composite surface, which is the source of the majority of the electrical resistance of the bipolar plate. The optimum plasma treatment condition was determined by calculating the resin etching depth, taking into consideration the carbon fiber dimensions of the GDL and the continuous-carbon/epoxy composite bipolar plate. Scanning Electron Microscopy (SEM) analysis was performed on the surface of the composite bipolar plate for each variation of plasma surface treatment. In addition, the tensile strength and the electrical resistance (in the through-thickness direction) of the composite bipolar plate were measured for the different plasma surface treatment conditions.
Keywords :
PEM fuel cells , Plasma etching treatment , Continuous-carbon/epoxy composite bipolar plate , Interfacial contact resistance
Journal title :
COMPOSITE STRUCTURES
Serial Year :
2012
Journal title :
COMPOSITE STRUCTURES
Record number :
1344699
Link To Document :
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