scholarly journals Anticorrosion Coating of Carbon Nanotube/Polytetrafluoroethylene Composite Film on the Stainless Steel Bipolar Plate for Proton Exchange Membrane Fuel Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Yoshiyuki Show ◽  
Toshimitsu Nakashima ◽  
Yuta Fukami
Keyword(s):  
Stainless Steel ◽  
Carbon Nanotube ◽  
Fuel Cell ◽  
Contact Resistance ◽  
Composite Film ◽  
Proton Exchange Membrane ◽  
Bipolar Plate ◽  
Proton Exchange ◽  
Membrane Electrode ◽  
Exchange Membrane

Composite film of carbon nanotube (CNT) and polytetrafluoroethylene (PTFE) was formed from dispersion fluids of CNT and PTFE. The composite film showed high electrical conductivity in the range of 0.1–13 S/cm and hydrophobic nature. This composite film was applied to stainless steel (SS) bipolar plates of the proton exchange membrane fuel cell (PEMFC) as anticorrosion film. This coating decreased the contact resistance between the surface of the bipolar plate and the membrane electrode assembly (MEA) of the PEMFC. The output power of the fuel cell is increased by 1.6 times because the decrease in the contact resistance decreases the series resistance of the PEMFC. Moreover, the coating of this composite film protects the bipolar plate from the surface corrosion.

Performance of Tantalum Modified 316L Stainless Steel Bipolar Plate for Proton Exchange Membrane Fuel Cell

Fuel Cells ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 724-730 ◽  
Author(s):  
T. Li ◽  
P. C. Zhang ◽  
K. Liu ◽  
S. Xu ◽  
Y. T. Han ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
316L Stainless Steel ◽  
Bipolar Plate ◽  
Proton Exchange ◽  
Exchange Membrane

Study Effect of Stress in the Electrical Contact Resistance of Bipolar Plate and Membrane Electrode Assembly in Proton Exchange Membrane Fuel Cell: A Review

2010 ◽  
Vol 447-448 ◽  
pp. 775-779 ◽  
Author(s):  
Kurniawan Miftah ◽  
Wan Ramli Wan Daud ◽  
Edy Herianto Majlan
Keyword(s):  
High Pressure ◽  
Contact Resistance ◽  
Proton Exchange Membrane ◽  
Electrical Contact ◽  
Membrane Electrode Assembly ◽  
Bipolar Plate ◽  
Proton Exchange ◽  
Membrane Electrode ◽  
Electrical Contact Resistance ◽  
Exchange Membrane

Stress applying in the stack of Proton Exchange Membrane Fuel Cell (PEMFC) effects the performance of PEMFC. High pressure in the Membrane Electrode Assembly (MEA) can reduce electrical contact resistance between bipolar plate and MEA. Nevertheless, too high pressure in the PEMFC can destroy MEA. Performance of PEMFC can be optimized by make proportional stress in the assembly of PEMFC. Finite element analysis (FEA) is one of method that can be used for analysis of stress in the PEMFC stack. However, setting of parameter in the analysis using FEA still became one of problem if realistic result must be desired. This paper reports setting of parameters in the stress analysis of PEMFC assembly using FEA method and study relationship of stress analysis with electrical contact resistance.

The Cylindrical Structure of Metallic Bipolar Plates for Proton Exchange Membrane Fuel Cell

2011 ◽  
Vol 228-229 ◽  
pp. 1029-1034
Author(s):  
Jian Lan ◽  
Chen Ni ◽  
Lin Hua
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Bipolar Plate ◽  
Proton Exchange ◽  
Battery Life ◽  
Membrane Electrode ◽  
Bipolar Plates ◽  
Forming Process ◽  
Cylindrical Structure ◽  
Exchange Membrane

As a key component of proton exchange membrane fuel cell (PEMFC), the bipolar plate’s performance will directly affect the power output and battery life of the fuel cell. The conventional metallic bipolar plate is prone to warp, and has large flatness error with residual stress induced by forming process. This will result in contacting incompletely with membrane electrode assemblies (MEA) and lower fuel cell efficiency. A cylindrical structure of the PEMFC metallic polar plate is proposed to improve its stiffness and to reduce assembling error of the fuel cell. The polar plate features, which were originally designed on a flat surface, are projected onto the cylindrical surface with a certain curvature. Two cylindrical polar plates are welded together to become a bipolar plate. The finite element method is applied to compare the stiffness of the conventional and cylindrical polar & bipolar plates. The cylindrical bipolar plate has better stiffness and anti-warping than the conventional bipolar plate. The feasibility of the cylindrical structure is verified by experiment and provides a new idea for the improvement of the bipolar plate and fuel cell stack.

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