Journal Article

FZJ-2020-00283

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Long-term operation of solid oxide fuel cells and preliminary findings on accelerated testing

Blum, L. (Corresponding author)FZJ* ; Fang, Q.FZJ* ; de Haart, L. G. J.FZJ* ; Quadakkers, W. J.FZJ* ; Gross-Barsnick, S.-M.FZJ* ; Menzler, N. H.FZJ*

2020
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/24503  doi:10.1016/j.ijhydene.2020.01.074

Abstract: Stationary applications of Solid Oxide Fuel Cell systems require operating times of 40,000 to 80,000 h for market introduction. Therefore, extended lifetime tests are essential for learning about the long-term behavior and various degradation mechanisms and to foster ideas about accelerated stack testing. The Forschungszentrum Jülich has been gradually extending the testing time, resulting in successful short-stack operating times of between 20,000 and 40,000 h. This work highlights the results of these long-term tests and compares the observations for different material combinations, operating temperatures of 700 and 800 °C, including different fuel utilizations and gas compositions. An increase of temperature from 700 to 800 °C leads to an acceleration of the degradation rate by a factor of 1.5–2. Meanwhile, an increase in fuel utilization from 40 to 80% did not result in increased degradation. The same was found for higher current densities of up to 1 Acm−2.

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Contributing Institute(s):

1. Elektrochemische Verfahrenstechnik (IEK-14)
2. Grundlagen der Elektrochemie (IEK-9)
3. Werkstoffstruktur und -eigenschaften (IEK-2)
4. Zentralinstitut für Technologie (ZEA-1)
5. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 135 - Fuel Cells (POF3-135) (POF3-135)
2. SOFC - Solid Oxide Fuel Cell (SOFC-20140602) (SOFC-20140602)

Appears in the scientific report 2020

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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