Influence of binder properties on kinetic and transport processes in polymer electrolyte fuel cell electrodes

2010 ◽  
Vol 12 (23) ◽  
pp. 6140 ◽  
Author(s):  
Satheesh Sambandam ◽  
Vijay Ramani
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Transport Processes ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Electrodes

Electromechanical diagnostic method for monitoring cracks in polymer electrolyte fuel cell electrodes

2017 ◽  
Vol 42 (16) ◽  
pp. 11644-11653 ◽  
Author(s):  
Kyung-Lim Jang ◽  
Sanwi Kim ◽  
Byeong-Heon Jeong ◽  
Jong-Gil Oh ◽  
Bo Ki Hong ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Diagnostic Method ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Electrodes

Dynamic Characteristics of Polymer Electrolyte Fuel Cell and Hydrogen Tank

2010 ◽  
Author(s):  
Yun Wang
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Dynamic Characteristics ◽  
Dynamic Models ◽  
Reaction Rates ◽  
Transport Processes ◽  
Water Dynamics ◽  
Polymer Electrolyte Fuel Cell ◽  
Limiting Factors ◽  
Electrochemical Double Layer

In this paper, we develop 3D dynamic models for polymer electrolyte fuel cells (PEFCs) and hydrogen tanks, respectively. The PEFC model considers the key components of a single PEFC and couples the various mechanisms that govern fuel cell transient including the electrochemical double-layer behavior, species transport, heat transfer, liquid water dynamics, and membrane water uptake. The hydrogen tank model includes a 3D description of the hydrogen discharging kinetics coupled with mass/heat transport in a LaNi5–based hydrogen tank. Efforts are made to discuss the dynamic characteristics of the PEFC and hydrogen tank together with the possible coupling of the two systems. Local electrochemical and hydride reaction rates, transport processes and associated limiting factors are investigated.

An X-Ray Tomography Based Lattice Boltzmann Simulation Study on Gas Diffusion Layers of Polymer Electrolyte Fuel Cells

2010 ◽  
Vol 7 (3) ◽  
Author(s):  
Pratap Rama ◽  
Yu Liu ◽  
Rui Chen ◽  
Hossein Ostadi ◽  
Kyle Jiang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Lattice Boltzmann ◽  
Gas Diffusion ◽  
Transport Processes ◽  
Polymer Electrolyte Fuel Cell ◽  
Absolute Permeability ◽  
Carbon Paper ◽  
X Ray ◽  
Microscale Transport

This work reports a feasibility study into the combined full morphological reconstruction of fuel cell structures using X-ray computed micro- and nanotomography and lattice Boltzmann modeling to simulate fluid flow at pore scale in porous materials. This work provides a description of how the two techniques have been adapted to simulate gas movement through a carbon paper gas diffusion layer (GDL). The validation work demonstrates that the difference between the simulated and measured absolute permeability of air is 3%. The current study elucidates the potential to enable improvements in GDL design, material composition, and cell design to be realized through a greater understanding of the nano- and microscale transport processes occurring within the polymer electrolyte fuel cell.

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