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PEFC Stack for Operating Temperatures up to 130 °C

Knöri, Torsten and Gülzow, Erich (2012) PEFC Stack for Operating Temperatures up to 130 °C. In: Proceedings of the 45th Power Sources Conference, 1, pp. 171-174. Power Sources Conference. 45th Power Sources Conference 2012, 11. – 14. Jun. 2012, Las Vegas (USA).

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Abstract

At the DLR Institute of Technical Thermodynamics new concepts for fuel cell stacks are being developed for various applications and load profiles. Thereby, the main focus lies on the simplification of the stacks for reaching a cost reduction as well as an increase of the power density. Today’s polymer electrolyte fuel cells (PEFCs) are applicable only within a limited range of the operating temperature. This limitation restricts the spectrum of possible applications and hinders their flexibility during operation. Therefore, the continuous operation at elevated temperatures or in an extended temperature range for a limited time offers the opportunity to overcome these restrictions. Unfortunately, higher operating temperatures lead to new challenges, especially when conventional materials for the membrane electrode assemblies (MEAs) are used: In order to avoid critical operating conditions and to ascertain a sufficient durability and performance of a fuel cell stack, special concepts regarding the bipolar plates, the cooling strategy, the MEAs themselves as well as a closer look on the water management are essential. Furthermore, the operating strategy of the stack has to be adapted with respect to all of the stack components.

Item URL in elib:https://elib.dlr.de/76361/
Document Type:Conference or Workshop Item (Speech)
Title:PEFC Stack for Operating Temperatures up to 130 °C
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Knöri, Torstentorsten.knoeri (at) dlr.deUNSPECIFIED
Gülzow, Ericherich.guelzow (at) dlr.deUNSPECIFIED
Date:11 June 2012
Journal or Publication Title:Proceedings of the 45th Power Sources Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1
Page Range:pp. 171-174
Editors:
EditorsEmail
Power Sources Conference 2012, -Power Sources Conference
Publisher:Power Sources Conference
Series Name:Proceedings of the Power Sources Conference
Status:Published
Keywords:Brennstoffzelle, Stack, PEFC, 130°C, Bipolarplatte, lokale Stromdichtemessung, Leichtbau
Event Title:45th Power Sources Conference 2012
Event Location:Las Vegas (USA)
Event Type:international Conference
Event Dates:11. – 14. Jun. 2012
Organizer:U.S. Department of Defense
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Fuel Cells (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Elektrochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Knöri, Torsten
Deposited On:22 Nov 2012 10:01
Last Modified:12 Dec 2013 21:42

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