Teflon-Coated Carbon Fiber Core/Shell Structure Based Hydrophobic Gas-Diffusion Electrode for Proton Exchange Membrane Fuel Cells

2010 ◽  
Vol 157 (2) ◽  
pp. B256 ◽  
Author(s):  
Chih-Ming Lee ◽  
Yi-Hao Pai ◽  
Gong-Ru Lin ◽  
Fuh-Sheng Shieu
Keyword(s):  
Fuel Cells ◽  
Carbon Fiber ◽  
Shell Structure ◽  
Proton Exchange Membrane ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Core Shell ◽  
Core Shell Structure ◽  
Exchange Membrane ◽  
Coated Carbon

Understanding of the Role of Carbon Fiber Paper in Proton Exchange Membrane Fuel Cells

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Xiuyu Sun ◽  
Zhenwei Wang
Keyword(s):  
Thermal Conductivity ◽  
Fuel Cells ◽  
Carbon Fiber ◽  
Proton Exchange Membrane ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Pore Channel ◽  
Core Competitiveness ◽  
Carbon Fiber Paper ◽  
Exchange Membrane

Abstract Carbon fiber paper (CFP) is currently the main product of the macroporous substrate (MPS) for the gas diffusion layer (GDL) of proton exchange membrane fuel cells (PEMFCs). The optimization of certain mechanical properties, electrical conductivity, thermal conductivity, air conduction, and mass transfer capabilities together with matched interaction can improve the core competitiveness of CFP. The artical conducts a detailed theoretical analysis of these conducting processes and principles based on CFP's main functions mentioned above. Thinner CFP with a wider pore channel brings about better mass permeability but unsatisfactory mechanical property. Thicker CFP with higher porosity and rougher surface results in worse electrical and thermal conductivity. Meanwhile, the temperature, pressure, time, and other fabrication parameters of CFP are also discussed. With so many contradictories, how to make a balance for real PEMFCs operation and reduce the cost would be a practical strategy for the optimization of CFP in the future.

Failure behavior of gas diffusion layer in proton exchange membrane fuel cells

2021 ◽  
Vol 515 ◽  
pp. 230655
Author(s):  
Yange Yang ◽  
Xiangyang Zhou ◽  
Fumin Tang ◽  
Bing Li ◽  
Pingwen Ming ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Diffusion Layer ◽  
Proton Exchange Membrane ◽  
Gas Diffusion Layer ◽  
Gas Diffusion ◽  
Proton Exchange ◽  
Failure Behavior ◽  
Exchange Membrane
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