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Title: Impacts of electrode coating irregularities on polymer electrolyte membrane fuel cell lifetime using quasi in-situ infrared thermography and accelerated stress testing

Journal Article · · International Journal of Hydrogen Energy
 [1];  [2];  [2];  [3];  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States); Colorado School of Mines, Golden, CO (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Colorado School of Mines, Golden, CO (United States)

In-line quality control diagnostics for roll-to-roll (R2R) manufacturing techniques will play a key role in the future commercialization of the polymer electrolyte membrane fuel cell (PEMFC) used in automotive applications. These diagnostics monitor the fabrication of the membrane electrode assembly (MEA), which detect and flag any non-uniformity that may potentially harm PEMFC performance and/or lifetime. This will require quantitative thresholds and a clear distinction between harmful defects and harmless coating irregularities. Thus, novel fuel cell hardware with quasi in-situ infrared (IR) thermography capabilities is utilized to understand how bare spots in the cathode electrode impact MEA lifetime. An accelerated stress test (AST) simulates chemical and mechanical degradation modes seen in vehicular operation. The actual open circuit voltage and rate of change of this voltage are used as in-situ indicators for MEA failure, enabling capture of the progression of failure point development. Bare spot coating irregularities located at the center of the electrode were found to have no impact on MEA lifetime when compared to a pristine MEA. However, MEA lifetime was found to be considerably shortened when these same irregularities are located at the cathode inlet and, especially, the anode inlet regions of the fuel cell.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Hydrogen and Fuel Cell Technologies Program (EE-3F)
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1426642
Alternate ID(s):
OSTI ID: 1496283
Report Number(s):
NREL/JA--5900-70934
Journal Information:
International Journal of Hydrogen Energy, Journal Name: International Journal of Hydrogen Energy Journal Issue: 12 Vol. 43; ISSN 0360-3199
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Gas crossover and membrane degradation in polymer electrolyte fuel cells journal August 2006
Defect Detection in Fuel Cell Gas Diffusion Electrodes Using Infrared Thermography journal March 2016
A review of PEM fuel cell durability: Degradation mechanisms and mitigation strategies journal September 2008
A review of accelerated stress tests of MEA durability in PEM fuel cells journal January 2009
The impact of channel path length on PEMFC flow-field design journal September 2006
Understanding Membrane Failure in PEMFC: Comparison of Diagnostic Tools at Different Observation Scales journal March 2012
The degradation mitigation effect of cerium oxide in polymer electrolyte membranes in extended fuel cell durability tests journal March 2013
Scientific Aspects of Polymer Electrolyte Fuel Cell Durability and Degradation journal October 2007
Investigation of MEA degradation in PEM fuel cell by on/off cyclic operation under different humid conditions journal January 2011
Understanding and approaches for the durability issues of Pt-based catalysts for PEM fuel cell journal September 2007
Reactive impinging-flow technique for polymer-electrolyte-fuel-cell electrode-defect detection journal November 2016
Applying infrared thermography as a quality-control tool for the rapid detection of polymer-electrolyte-membrane-fuel-cell catalyst-layer-thickness variations journal August 2012
500h Continuous aging life test on PBI/H3PO4 high-temperature PEMFC journal October 2006
Accelerated life-time test protocols for polymer electrolyte membrane fuel cells operated at high temperature journal February 2015
Morphological features (defects) in fuel cell membrane electrode assemblies journal July 2006
Degradation analysis and modeling of reinforced catalyst coated membranes operated under OCV conditions journal September 2008
Detecting and localizing failure points in proton exchange membrane fuel cells using IR thermography journal May 2014
Determination of Catalyst Unique Parameters for the Oxygen Reduction Reaction in a PEMFC journal January 2006
Accelerated Testing of Carbon Corrosion and Membrane Degradation in PEM Fuel Cells journal March 2013
Comparison between two PEM fuel cell durability tests performed at constant current and under solicitations linked to transport mission profile journal December 2007
Membrane Degradation at Catalyst Layer Edges in PEMFC MEAs journal January 2007
A degradation study of Nafion proton exchange membrane of PEM fuel cells journal June 2007
Application of a thermally conductive pyrolytic graphite sheet to thermal management of a PEM fuel cell journal March 2008
Phenomenon Analysis of PEFC for Automotive Use(1) Membrane Degradation Behavior During OCV Hold Test journal October 2006
Aspects of the Chemical Degradation of PFSA Ionomers used in PEM Fuel Cells journal April 2005
Accelerated Testing Validation conference January 2011
Review: Durability and Degradation Issues of PEM Fuel Cell Components journal February 2008
In Situ Quantification of Electronic Short Circuits in PEM Fuel Cell Stacks journal August 2015
Utilizing a Segmented Fuel Cell to Study the Effects of Electrode Coating Irregularities on PEM Fuel Cell Initial Performance journal April 2017
Accelerated stress test procedures for PEM fuel cells under actual load constraints: State-of-art and proposals journal September 2015
A review of polymer electrolyte membrane fuel cell durability test protocols journal November 2011
Characterization of MEA degradation for an open air cathode PEM fuel cell journal April 2012

Cited By (1)

In Situ and Operando Characterization of Proton Exchange Membrane Fuel Cells journal August 2019