Electromagnetic-carbon surface treatment of composite bipolar plate for high-efficiency polymer electrolyte membrane fuel cells

2010 ◽  
Vol 195 (6) ◽  
pp. 1577-1582 ◽  
Author(s):  
Bu Gi Kim ◽  
Dai Gil Lee
Keyword(s):  
Fuel Cells ◽  
Surface Treatment ◽  
Polymer Electrolyte ◽  
High Efficiency ◽  
Polymer Electrolyte Membrane ◽  
Bipolar Plate ◽  
Carbon Surface ◽  
Electrolyte Membrane

Bipolar plate made of carbon fiber epoxy composite for polymer electrolyte membrane fuel cells

2008 ◽  
Vol 184 (1) ◽  
pp. 90-94 ◽  
Author(s):  
In Uk Hwang ◽  
Ha Na Yu ◽  
Seong Su Kim ◽  
Dai Gil Lee ◽  
Jung Do Suh ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Fiber ◽  
Polymer Electrolyte ◽  
Epoxy Composite ◽  
Polymer Electrolyte Membrane ◽  
Bipolar Plate ◽  
Electrolyte Membrane ◽  
Carbon Fiber Epoxy

An Internal Water Management Scheme for Portable Polymer Electrolyte Fuel Cells

2006 ◽  
Author(s):  
Richard S. Fu ◽  
Ugur Pasaogullari
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
High Efficiency ◽  
Polymer Electrolyte Membrane ◽  
Polymer Electrolyte Fuel Cells ◽  
Bipolar Plates ◽  
Optimal Range ◽  
Electrolyte Membrane ◽  
Management Scheme ◽  
Computational Fluid Dynamics Cfd

Performance of polymer electrolyte fuel cells (PEFCs) is highly dependent on water content of the membrane and a humidification scheme becomes a necessity to operate PEFCs at a high efficiency. However, conventional humidification schemes require external humidifiers, which are usually bulky and impractical for portable PEFCs. In this paper we propose an innovative approach for humidification of the polymer electrolyte membrane, using an internally built-in mass (water) exchanger (MX) embedded in the bipolar plates. We present the validation of the concept using a multi-dimensional, isothermal computational fluid dynamics (CFD) solution of the water transport in the proposed MX. An optimal range of operation of the MX is investigated and effects on PEFC performance are studied.

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