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Performance and durability of high temperature proton exchange membrane fuel cells with silicon carbide filled polybenzimidazole composite membranes

Schonvogel, Dana and Belack, Jörg and Vidakovic, Jurica and Schmies, Henrike and Uhlig, Lisa Maria and Langnickel, Hendrik and Tung, Patrick Kin Man and Meyer, Quentin and Zhao, Chuan and Wagner, Peter (2024) Performance and durability of high temperature proton exchange membrane fuel cells with silicon carbide filled polybenzimidazole composite membranes. Journal of Power Sources, 591, p. 233835. Elsevier. doi: 10.1016/j.jpowsour.2023.233835. ISSN 0378-7753.

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Official URL: https://www.sciencedirect.com/science/article/pii/S0378775323012119

Abstract

High temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) are used for stationary to mobile applications and show increased tolerances to fuel impurities like CO compared to their low temperature counterpart. However, conventional HT-PEMFC membranes, based on polybenzimidazole (PBI), suffer from creeping during long-term operation and thus a significant increase in surface resistance. In this study, inorganic fillers in terms of silicon carbide (SiC) are incorporated into the standard PBI-based Celtec®-P membrane by a well-established large-scale polyphosphoric acid process. Operations over 1000Â h of load cycling between 0.6 and 1.0 A/cm2 of SiC and for conventional HT-PEMFCs reveal differences in long-term durability. The ohmic resistance of the SiC-based single cell is 1/3 lower, while the membrane has a higher thickness retention. Cell performances are improved with lower degradation rates (<65 µV/h for both SiC and >100 µV/h for both conventional HT-PEMFCs) after 1000 h. However, SiC particle mobility and increased hydrogen permeability are observed after testing.

Item URL in elib:https://elib.dlr.de/199427/
Document Type:Article
Title:Performance and durability of high temperature proton exchange membrane fuel cells with silicon carbide filled polybenzimidazole composite membranes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schonvogel, DanaUNSPECIFIEDhttps://orcid.org/0000-0002-2485-740XUNSPECIFIED
Belack, JörgUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vidakovic, JuricaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schmies, HenrikeUNSPECIFIEDhttps://orcid.org/0000-0002-6565-1280UNSPECIFIED
Uhlig, Lisa MariaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Langnickel, HendrikUNSPECIFIEDhttps://orcid.org/0000-0002-6395-1618UNSPECIFIED
Tung, Patrick Kin ManUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Meyer, QuentinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhao, ChuanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wagner, PeterUNSPECIFIEDhttps://orcid.org/0000-0002-5644-9881UNSPECIFIED
Date:January 2024
Journal or Publication Title:Journal of Power Sources
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:591
DOI:10.1016/j.jpowsour.2023.233835
Page Range:p. 233835
Publisher:Elsevier
ISSN:0378-7753
Status:Published
Keywords:High temperature proton exchange membrane fuel cells, Membrane electrode assembly, Durability, Polybenzimidazole, Silicon carbide
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Chemical Energy Carriers
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Electrochemical Processes
Location: Oldenburg
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Institute of Networked Energy Systems
Deposited By: Schonvogel, Dr. Dana
Deposited On:29 Nov 2023 10:21
Last Modified:05 Jan 2024 12:47

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