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240108s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202308288
|2 doi
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Kim, Minju
|e verfasserin
|4 aut
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|a Fatigue-Resistant Polymer Electrolyte Membranes for Fuel Cells
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|c 2024
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 04.04.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley‐VCH GmbH.
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|a In a hydrogen fuel cell, an electrolyte membrane conducts protons, but blocks electrons, hydrogen molecules, and oxygen molecules. The fuel cell often runs unsteadily, resulting in fluctuating water production, causing the membrane to swell and contract. The cyclic deformation can cause fatigue crack growth. This paper describes an approach to develop a fatigue-resistant polymer electrolyte membrane. The membrane is prepared by forming an interpenetrating network of a plastic electrolyte and a rubber. The former conducts protons, and the latter enhances fatigue resistance. The introduction of the rubber modestly reduces electrochemical performance, but significantly increases fatigue threshold and lifespan. Compared to pristine plastic electrolyte, Nafion, an interpenetrating network of Nafion and perfluoropolyether (PFPE) reduces the maximum power density by 20%, but increases the fatigue threshold by 175%. Under the wet/dry accelerated stress test, the fuel cell with the Nafion-PFPE membrane has a lifespan 1.7 times that of a fuel cell with the Nafion membrane
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|a Journal Article
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|a fatigue resistant
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|a fuel cells
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|a interpenetrating network
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|a perfluorinated monomer
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| 650 |
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4 |
|a polymer electrolyte membrane
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1 |
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|a Zhang, Guogao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jang, Segeun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Sanghyeok
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Suo, Zhigang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Sang Moon
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 14 vom: 15. Apr., Seite e2308288
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:14
|g day:15
|g month:04
|g pages:e2308288
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202308288
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