Near-Infrared Imaging of Water in a Polymer Electrolyte Membrane during a Fuel Cell Operation

2010 ◽  
Vol 82 (22) ◽  
pp. 9221-9224
Author(s):  
Shigeaki Morita ◽  
Yuki Jojima ◽  
Yasushi Miyata ◽  
Kuniyuki Kitagawa
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Near Infrared ◽  
Infrared Imaging ◽  
Polymer Electrolyte Membrane ◽  
Near Infrared Imaging ◽  
Electrolyte Membrane ◽  
Fuel Cell Operation

scholarly journals Spatially resolved degradation during startup and shutdown in polymer electrolyte membrane fuel cell operation

2019 ◽  
Vol 254 ◽  
pp. 113659 ◽  
Author(s):  
S. Komini Babu ◽  
D. Spernjak ◽  
J. Dillet ◽  
A. Lamibrac ◽  
G. Maranzana ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Electrolyte Membrane ◽  
Spatially Resolved ◽  
Fuel Cell Operation

A New Hydrocarbon-Type Polymer Electrolyte Membrane for DMFC Application

2011 ◽  
Vol 287-290 ◽  
pp. 2536-2539
Author(s):  
Yoshimitsu Sakaguchi
Keyword(s):  
Aqueous Solution ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Promising Result ◽  
Polymer Electrolyte Membrane ◽  
Methanol Solution ◽  
Perfluorosulfonic Acid ◽  
Electrolyte Membrane ◽  
Higher Power ◽  
Fuel Cell Operation

A new hydrocarbon-type polymer electrolyte membrane has been developed as a candidate of commercially available product for DMFC application. The membrane shows lower methanol crossover and swelling in the methanol aqueous solution than perfluorosulfonic acid membrane does. As a result, MEA made from the membrane showed higher power density than that of perfluorosulfonic acid membrane at higher concentration of feed methanol solution and higher current density without tremendous flooding. Promising result of the practical durability with continuous fuel cell operation for 8000 hours was also confirmed with this membrane.

A Comparison of Felt-Type and Paper-Type Gas Diffusion Layers for Polymer Electrolyte Membrane Fuel Cell Applications Using X-Ray Techniques

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
R. Banerjee ◽  
S. Chevalier ◽  
H. Liu ◽  
J. Lee ◽  
R. Yip ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Liquid Water ◽  
Polymer Electrolyte Membrane ◽  
Gas Diffusion ◽  
Gas Diffusion Layers ◽  
X Ray ◽  
Electrolyte Membrane ◽  
Diffusion Layers ◽  
Fuel Cell Operation

This work presents a comparison between carbon felt-type and paper-type gas diffusion layers (GDLs) for polymer electrolyte membrane (PEM) fuel cells in terms of the similarities and the differences between their microstructures and the corresponding manner in which liquid water accumulated within the microstructures during operation. X-ray computed tomography (CT) was used to investigate the microstructure of single-layered GDLs (without a microporous layer (MPL)) and bilayered GDLs (with an MPL). In-operando synchrotron X-ray radiography was used to visualize the GDL liquid water accumulation during fuel cell operation as a function of current density. The felt-type GDLs studied here exhibited a more uniform porosity in the core regions, and the carbon fibers in the substrate were more prone to MPL intrusion. More liquid water accumulated in the felt-type GDLs during fuel cell operation; however, when differentiating between the microstructural impact of felt and paper GDLs, the presence of an MPL in bilayered GDLs was the most influential factor in liquid water management.

scholarly journals Review of the Durability of Polymer Electrolyte Membrane Fuel Cell in Long-Term Operation: Main Influencing Parameters and Testing Protocols

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4048
Author(s):  
Huu Linh Nguyen ◽  
Jeasu Han ◽  
Xuan Linh Nguyen ◽  
Sangseok Yu ◽  
Young-Mo Goo ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Failure Modes ◽  
Polymer Electrolyte Membrane ◽  
Durability Test ◽  
Term Operation ◽  
Electrolyte Membrane ◽  
Transportation Applications ◽  
Testing Protocols

Durability is the most pressing issue preventing the efficient commercialization of polymer electrolyte membrane fuel cell (PEMFC) stationary and transportation applications. A big barrier to overcoming the durability limitations is gaining a better understanding of failure modes for user profiles. In addition, durability test protocols for determining the lifetime of PEMFCs are important factors in the development of the technology. These methods are designed to gather enough data about the cell/stack to understand its efficiency and durability without causing it to fail. They also provide some indication of the cell/stack’s age in terms of changes in performance over time. Based on a study of the literature, the fundamental factors influencing PEMFC long-term durability and the durability test protocols for both PEMFC stationary and transportation applications were discussed and outlined in depth in this review. This brief analysis should provide engineers and researchers with a fast overview as well as a useful toolbox for investigating PEMFC durability issues.

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