Optimization of a Carbon Composite Bipolar Plate for PEM Fuel Cells

2002 ◽  
Vol 756 ◽  
Author(s):  
Theodore M. Besmann ◽  
John J. Henry ◽  
Edgar Lara-Curzio ◽  
James W. Klett ◽  
David Haack ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Fibers ◽  
Low Cost ◽  
Chemical Vapor ◽  
High Strength ◽  
Bipolar Plate ◽  
Pem Fuel Cells ◽  
Carbon Composite ◽  
Chemical Vapor Infiltration ◽  
Short Carbon

ABSTRACTA carbon composite bipolar plate for PEM fuel cells has been developed that has high electrical conductivity, high strength, light weight, is impermeable, and has the potential for being produced at low cost. The plate is produced by slurry molding short carbon fibers into preform structures, molding features into the green body, and using chemical vapor infiltration to strengthen the material, give it high conductivity, and densify the surface to make it impermeable. Current efforts have focused on optimizing the fabrication process and characterizing prototypical components.

Life-Limiting Aspects of the Corrosion of Metallic Bipolar Plates for PEM Fuel Cells

2008 ◽  
Vol 41-42 ◽  
pp. 469-475 ◽  
Author(s):  
Yan Wang ◽  
Derek O. Northwood
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Low Cost ◽  
Electronic Conductivity ◽  
Bipolar Plate ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Metallic Materials ◽  
Bipolar Plates ◽  
Metallic Bipolar Plates

In proton exchange membrane fuel cells (PEMFCs), the bipolar plates supply the reactant gases through the flow channels to the electrodes and serve the purpose of electrochemically connecting one cell to another in the electrochemical cell stack. Requirements of the bipolar plate material are: high values of electronic conductivity; high values of thermal conductivity; high mechanical strength; impermeability to reactant gases; resistance to corrosion; and low cost of automated production. Metallic materials meet many of these requirements but the challenge has been in obtaining the required corrosion resistance. In the paper, six metallic materials were investigated as potential bipolar plate materials. The results showed that the corrosion rates were too high even for the most corrosion resistant metals (SS316L and grade 2 Ti), and that coatings would be required.

scholarly journals Carbon Composite for A Pem Fuel Cell Bipolar Plate

1997 ◽  
Vol 496 ◽  
Author(s):  
T. M. Besmann ◽  
J. W. Klett ◽  
T. D. Burchell
Keyword(s):  
Proton Exchange Membrane ◽  
Chemical Vapor ◽  
Fiber Material ◽  
Bipolar Plate ◽  
Carbon Composite ◽  
Chemical Vapor Infiltration ◽  
Proton Exchange ◽  
Cost Component ◽  
Carbon Fiber Material ◽  
Initial Work

ABSTRACTThe current major cost component for proton exchange membrane fuel cells is the bipolar plate. An option being explored for replacing the current, nominal machined graphite component is a molded carbon fiber material. One face and the volume of the component will be left porous, while the opposite surface and sides are hermetically sealed via chemical vapor infiltration of carbon. This paper will address initial work on the concept.

scholarly journals Fabrication and investigation of polymer-based carbon composite as gas diffusion layer of proton exchange membrane of fuel cells

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Reza Taherian 1 ◽  
Mohammad Matboo Ghorbani 1 ◽  
Mohammad Nasr 2 ◽  
Seyed Rahim Kiahosseini 3
Keyword(s):  
Electrical Conductivity ◽  
Fuel Cells ◽  
Pore Size ◽  
Carbon Fibers ◽  
Pem Fuel Cells ◽  
Carbon Composite ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Carbon Paper ◽  
Mixing Method

Carbon paper is one of the most important component in polymer electrolyte PEM fuel cells. In this research, we report two methods of manufacturing carbon papers that do not need the steps of carbonization and graphitization are common steps in carbon paper. At first method (mixing method), the short carbon fibers have a random distribution in the composite and in the second method (fabric method), the long carbon fibers are oriented in planar configuration .In order to investigate on the properties, the effect of paper thickness and expanded graphite value have been considered and compared with Toray carbon paper. The characterization is performed by scanning electron microscope, maximum pore size, mean pore size, permeability, electrical conductivity, flexibility, and performance (I-V) curve. The results show that mixing method resulting in a higher electrical conductivity, pore size, and permeability, as well as I-V curve similar to Toray paper. In addition, the cost estimates and flexibility test show that both fabric and mixing methods results in a much lower cost, due to removing the graphitization and carbonization steps, and more flexible samples in comparison to Toray paper.

High-strength carbon nanotube/carbon composite fibers via chemical vapor infiltration

Nanoscale ◽  
2016 ◽  
Vol 8 (45) ◽  
pp. 18972-18979 ◽  
Author(s):  
Jaegeun Lee ◽  
Teawon Kim ◽  
Yeonsu Jung ◽  
Kihoon Jung ◽  
Junbeom Park ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Chemical Vapor ◽  
High Strength ◽  
Carbon Composite ◽  
Chemical Vapor Infiltration ◽  
Composite Fibers ◽  
Vapor Infiltration

A Low-Cost PTFE-Reinforced Integral Multilayered Self-Humidifying Membrane for PEM Fuel Cells

2006 ◽  
Vol 9 (7) ◽  
pp. A332 ◽  
Author(s):  
Yu Zhang ◽  
Hua-Min Zhang ◽  
Xiao-Bing Zhu ◽  
Yong-Min Liang
Keyword(s):  
Fuel Cells ◽  
Low Cost ◽  
Pem Fuel Cells
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