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Title: Visualization, understanding, and mitigation of process-induced-membrane irregularities in gas diffusion electrode-based polymer electrolyte membrane fuel cells

Journal Article · · International Journal of Hydrogen Energy

Polymer electrolyte membrane fuel cells (PEMFC) show substantial promise for their application in electric vehicles. For large-scale manufacturing of PEMFCs, roll-to-roll coated gas-diffusion-electrodes (GDE) offer certain advantages over other production pathways. Procedures including hot pressing and coating an ionomer overlayer may be necessary for this manufacturing pathway to enable a suitable catalyst layer/membrane interface. The same procedures may potentially introduce membrane irregularities, especially when thin membranes are used. Limited understanding exists regarding if and to what extent such irregularities impact PEMFC performance and lifetime, and therefore be considered defects. In this study, NREL's customized fuel cell hardware that enables quasi in-situ infrared (IR) thermography studies was utilized to visualize spatial hydrogen crossover and identify membrane irregularities that originated from the GDE-based MEA fabrication process. The structure of these membrane irregularities was investigated by scanning electron microscopy (SEM) and its impact on initial H2/air performance was determined. Accelerated stress testing (AST) revealed that these irregularities develop into failure point locations. These results were validated across many MEAs with identified process-induced membrane irregularities. By selecting specific gas diffusion media properties and by fine tuning the MEA hot pressing parameters, the formation of such membrane irregularities was mitigated.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Hydrogen and Fuel Cell Technologies Office (EE-3F); USDOE
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1769844
Alternate ID(s):
OSTI ID: 1775192
Report Number(s):
NREL/JA-5900-79294; MainId:33520; UUID:08e9549d-33f0-420f-a359-1d35e04fa7a3; MainAdminID:19803
Journal Information:
International Journal of Hydrogen Energy, Vol. 46, Issue 27; ISSN 0360-3199
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (52)

Impact of Microporous Layer Roughness on Gas-Diffusion-Electrode-Based Polymer Electrolyte Membrane Fuel Cell Performance journal October 2019
Optimization of parameters for hot-pressing manufacture of membrane electrode assembly for PEM (polymer electrolyte membrane fuel cells) fuel cell journal August 2013
A comprehensive review on unitized regenerative fuel cells: Crucial challenges and developments journal February 2017
Perfluorosulfonic acid membrane degradation in the hydrogen inlet region: A macroscopic approach journal January 2016
Impact of Catalyst Ink Dispersing Methodology on Fuel Cell Performance Using in-Situ X-ray Scattering journal July 2019
Application of a segmented cell setup to detect pinhole and catalyst loading defects in proton exchange membrane fuel cells journal August 2012
Scientific Aspects of Polymer Electrolyte Fuel Cell Durability and Degradation journal October 2007
Effect of pinhole location on degradation in polymer electrolyte fuel cells journal November 2015
Importance of electrode hot-pressing conditions for the catalyst performance of proton exchange membrane fuel cells journal August 2015
Hydrogen and fuel cell technologies for heating: A review journal February 2015
Non precious metal catalysts for the PEM fuel cell cathode journal January 2012
Challenges to High-Volume Production of Fuel Cell Materials: Quality Control journal March 2013
Understanding the formation of pinholes in PFSA membranes with the essential work of fracture (EWF) journal February 2014
Gravure Coating for Roll-to-Roll Manufacturing of Proton-Exchange-Membrane Fuel Cell Catalyst Layers journal January 2018
The effect of hydrogen crossover on open-circuit voltage in polymer electrolyte membrane fuel cells journal April 2010
Thermal management strategy for a proton exchange membrane fuel cell system with a large active cell area journal December 2008
Dictating Pt-Based Electrocatalyst Performance in Polymer Electrolyte Fuel Cells, from Formulation to Application journal November 2019
Utilizing a Segmented Fuel Cell to Study the Effects of Electrode Coating Irregularities on PEM Fuel Cell Initial Performance journal April 2017
Determination of Catalyst Unique Parameters for the Oxygen Reduction Reaction in a PEMFC journal January 2006
Gas diffusion layer modifications and treatments for improving the performance of proton exchange membrane fuel cells and electrolysers: A review journal November 2017
Investigation of membrane degradation in polymer electrolyte fuel cells using local gas permeation analysis journal August 2012
Investigation of porous structure formation of catalyst layers for proton exchange membrane fuel cells and their effect on cell performance journal November 2016
Fabrication of high-performance gas-diffusion-electrode based membrane-electrode assemblies journal February 2020
Defect Detection in Fuel Cell Gas Diffusion Electrodes Using Infrared Thermography journal August 2013
Glass Transition Temperature of Perfluorosulfonic Acid Ionomers journal May 2007
Fuel cell vehicles: State of the art with economic and environmental concerns journal January 2011
Membrane degradation during combined chemical and mechanical accelerated stress testing of polymer electrolyte fuel cells journal July 2014
A review of fuel cell based hybrid power supply architectures and algorithms for household appliances journal January 2014
The Effect of Membrane Casting Irregularities on Initial Fuel Cell Performance journal January 2020
Elucidating the Dynamic Nature of Fuel Cell Electrodes as a Function of Conditioning: An ex Situ Material Characterization and in Situ Electrochemical Diagnostic Study journal November 2019
Detecting and localizing failure points in proton exchange membrane fuel cells using IR thermography journal May 2014
Life-cycle implications of hydrogen fuel cell electric vehicle technology for medium- and heavy-duty trucks journal July 2018
Review and analysis of PEM fuel cell design and manufacturing journal February 2003
Investigation of membrane electrode assembly (MEA) hot-pressing parameters for proton exchange membrane fuel cell journal December 2007
Role of the glass transition temperature of Nafion 117 membrane in the preparation of the membrane electrode assembly in a direct methanol fuel cell (DMFC) journal September 2012
Direct hydrogen fuel cell electric vehicle cost analysis: System and high-volume manufacturing description, validation, and outlook journal September 2018
“The development of a through-plane reactive excitation technique for detection of pinholes in membrane-containing MEA sub-assemblies” journal March 2019
Effective Electrode Edge Protection for Proton Exchange Membrane Fuel Cell Drive Cycle Operation journal July 2019
Impacts of electrode coating irregularities on polymer electrolyte membrane fuel cell lifetime using quasi in-situ infrared thermography and accelerated stress testing journal March 2018
Understanding Membrane Failure in PEMFC: Comparison of Diagnostic Tools at Different Observation Scales journal March 2012
Analysis of mechanism of Nafion ® conductivity change due to hot pressing treatment journal April 2016
Fabrication Method for Laboratory-Scale High-Performance Membrane Electrode Assemblies for Fuel Cells journal December 2016
A review of accelerated stress tests of MEA durability in PEM fuel cells journal January 2009
The effects of pinholes on proton exchange membrane fuel cell performance journal December 2010
Accelerated Stress Testing of Fuel Cell Membranes Subjected to Combined Mechanical/Chemical Stressors and Cerium Migration journal January 2018
Fatigue and creep to leak tests of proton exchange membranes using pressure-loaded blisters journal December 2009
Experimental investigation of pinhole effect on MEA/cell aging in PEMFC journal January 2013
Influence of hot-pressing temperature on the performance of PEMFC and catalytic activity journal January 2009
Improvement of the proton exchange membrane fuel cell performances by optimization of the hot pressing process for membrane electrode assembly journal October 2013
A Mechanistic Model for Pinhole Growth in Fuel-Cell Membranes during Cyclic Loads journal January 2014
Impact of manufacturing processes on proton exchange membrane fuel cell performance journal September 2018
Wetting phenomena during processing of high-viscosity shear-thinning fluid journal July 2011