Cited by 737Fuel Cells and Related MaterialsElectrocatalysts for Energy ConversionElectric and Hybrid Vehicle Technologies

Degradation mechanisms of proton exchange membrane fuel cell under typical automotive operating conditions

Ren, Peng, Pei, Pucheng, Li, Yuehua, Wu, Ziyao, Chen, Dongfang, Huang, Shangwei·2020·Progress in Energy and Combustion Science

Abstract

Abstract The proton exchange membrane (PEM) fuel cell is an ideal automotive power source with great potential, owing to its high efficiency and zero emissions. However, the durability and life-span limit its large-scale application. Complex automotive operating conditions significantly accelerate fuel cell aging, and result in diverse degradation mechanisms that require comprehensive understanding. This review focuses on three harsh conditions of open-circuit/idling, dynamic load, and startup-shutdown. In-situ and ex-situ accelerated stress tests (ASTs) for the three conditions are summarized in terms of methodology, research objectives, and conditions of application. Reversible decay may arise during ASTs and lead to an over-estimation of the aging state, of which the causes and recovery procedures are emphasized. The degradation mechanisms are elaborated systematically according to parameter characteristics, microstructure, and aging reactions. First, increased gas permeation and a high cathode potential during open-circuit/idling combine to intensify generation of free radicals that cause membrane degradation. Pt degradation and migration are also accelerated, characterized by increased Pt particle growth and precipitation in the membrane. The debate regarding the effect of Pt precipitation on membrane degradation is resolved based on a literature review. Second, dynamic load brings about changes in the thermal/humidity state, altered reactant demand, and potential cycling, which lead to mechanical degradation, gas starvation, and Pt particle growth, respectively. To account for the accelerated particle growth, electrochemical Ostwald ripening and increased Pt dissolution are reviewed. Third, an air/hydrogen boundary appears in the anode under startup-shutdown condition and causes carbon corrosion in the local cathode via the reverse current mechanism. The cathode thereby suffers from severe and non-uniform structural damage and even structural collapse, accompanied by Pt agglomeration and detachment. Meanwhile, difficulties in mass transfer arise because of ionomer redistribution, decreased porosity, and carbon surface hydrophilization. In addition, cold start produces severe damage to component structures. This paper seeks to guide further investigation into improved fuel cell durability via mechanism analysis, condition optimization, control strategy development, structural design of the membrane electrode assembly, and component material development.

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Crossref · 10.1016/j.pecs.2020.100859

Cites

410 of 410 references verified0 citation errors · 0 not checkable

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  • At the anode, reactive oxygen species are likely to be generated under inappropriate operation (e.g., H2 starvation, start-up/shut-down and reversal), leading to aggressive material degradation (e.g., membrane and ionomer).

    “at the anode, reactive oxygen species are likely to be generated under inappropriate operation (e.g., H 2 starvation, start-up/ shut-down and reversal), leading to aggressive material degradation (e.g., membrane and ionomer) [22].”

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1 retracted

Flagged first, then by citations

4 of the 414 references couldn’t be matched to a known paper.

Research works printed but not linked: 4

  1. WolfVielstich, ArnoldLamm, Gasteiger H.Handbook of fuel cells: fundamentals, technology, and applications: Wiley; 2009.
  2. Yuan, 2012, Degradation of a PEM fuel cell stack with Nafion® membranes of different thicknesses, Part II: Ex situ diagnosis. Journal of Power Sources., 205, 324
  3. Hild, 2010, Cathode humidification of a PEM fuel cell through exhaust gas recirculation into a positive displacement compressor, Google Patents
  4. Weber, 2014, A critical review of modeling transport phenomena in polymer-electrolyte fuel cells, Journal of The Electrochemical Society, 161, F1254, 10.1149/2.0751412jes · DOI

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Authors
Ren, P., Pei, P., Li, Y., Wu, Z., Chen, D., & Huang, S.
Affiliations
Tsinghua University (CN)
Corresponding author
Pei, Pucheng
Venue
Progress in Energy and Combustion Science
Publisher
Elsevier BV
Published
2020-09
Volume
80
Pages
100859
ISSN
0360-1285 (ISSN-L)
OpenAlex
W3033731711
Cited by
737
References
414
Citations by year
2026: 141 · 2025: 162 · 2024: 161 · 2023: 104 · 2022: 85 · 2021: 76 · 2020: 8
FWCI
23.42
Type
journal article
Language
en
Update notices
erratum (2020-11-01)
Open access
closed
Locations
Progress in Energy and Combustion Science (publishedVersion)
Funders
  • National Natural Science Foundation of China (21676158, 21376138, 21975143)
  • National Basic Research Program of China (2016YFB0101305, 2016YFB0101208, 2017YFB0102705)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Engineering › Automotive Engineering › Electric and Hybrid Vehicle Technologies
Keywords
proton exchange membrane fuel cells, fuel cell durability, accelerated stress testing, dynamic loading, gas permeation, free radicals, membrane degradation, gas starvation, mechanical degradation, Ostwald ripening, platinum dissolution, carbon corrosion, cold start, membrane electrode assembly

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