Lang, Michael and Auer, Corinna and Couturier, Karine and Sun, Xiufu and Mc Phail, Stephen and Malkow, Thomas and FU, Qingxi and Liu, Qinglin (2017) Quality Assurance of Solid Oxide Fuel Cell (SOFC) and Electrolyser (SOEC) Stacks. In: ECS Transactions, 78 (1), pp. 2077-2086. The Electrochemical Society. SOFC-XV: 15th International Symposium on Solid Oxide Fuel Cells, 2017-07-23 - 2017-07-28, Hollywood, Florida, USA. doi: 10.1149/07801.2077ecst. ISBN 978-160768539-5. ISSN 1938-6737.
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Abstract
Many research facilities and industrial companies worldwide are engaged in the development and the improvement of solid oxide fuel cells/stacks (SOFC) and also of solid oxide electrolysis cells/stacks (SOEC). However, the different stacks cannot be easily compared due to non-standardized test programs. Therefore the EU-funded project SOCTESQA which started in May 2014 has the aim to develop uniform and industry wide test modules and programs for SOC cells/stacks. New application fields which are based on the operation of the SOC cell/stack assembly in the fuel cell (SOFC), in the electrolysis (SOEC) and in the combined SOFC/SOEC mode are addressed. This covers the wide range of power generation systems, e.g. stationary SOFC μ-CHP, mobile SOFC auxiliary power unit (APU) and SOFC/SOEC power-to-gas systems. In order to optimize the test programs, which consist of different test modules, several testing campaigns have been performed. The project partners apply the developed test procedures on identical SOC stacks. In this project 5-cell shortstacks with anode supported cells (ASC) were used, which were provided by an established stack supplier. Altogether 10 pre-normative test modules were developed: Start-up, current-voltage curve, electrochemical impedance spectroscopy, reactant utilization, reactant gas composition, temperature sensitivity, operation at constant current, operation at varying current, thermal cycling and shut-down. The presentation compares the results of the test modules of the different project partners. Important aspects are the evaluation of the results in terms of repeatability of the different testing campaigns and the reproducibility of the results among the partners. Electrochemical properties, e.g. open circuit voltage (OCV), area specific resistance (ASR), power density, fuel utilization (FU) and impedance values of both stack and repeat units (RU) are presented. Moreover, the results are discussed in context to the test input parameters. Another important issue is the reproducibility of the different test methods, e.g. jV-characteristics and EIS-spectra. Finally, important aspects for the determination of reproducible degradation rates of SOC stacks will be presented and discussed.
Item URL in elib: | https://elib.dlr.de/114561/ | ||||||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||||||||||
Title: | Quality Assurance of Solid Oxide Fuel Cell (SOFC) and Electrolyser (SOEC) Stacks | ||||||||||||||||||||||||||||||||||||
Authors: |
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Date: | July 2017 | ||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | ECS Transactions | ||||||||||||||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||||||
Volume: | 78 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1149/07801.2077ecst | ||||||||||||||||||||||||||||||||||||
Page Range: | pp. 2077-2086 | ||||||||||||||||||||||||||||||||||||
Editors: |
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Publisher: | The Electrochemical Society | ||||||||||||||||||||||||||||||||||||
Series Name: | ECS Transactions | ||||||||||||||||||||||||||||||||||||
ISSN: | 1938-6737 | ||||||||||||||||||||||||||||||||||||
ISBN: | 978-160768539-5 | ||||||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||||||
Keywords: | SOFC, SOEC, test program, uniform test module, quality assurance, reversible operation, SOC-stack, jV-curve, EIS, temperature sensitivity, Operation at constant current, reactant utilization, thermal cycling, reproducibility, repeatability, ASR, FU, Reproduzierbarkeit, Qualitätssicherung, standardisierte Prüfprozeduren | ||||||||||||||||||||||||||||||||||||
Event Title: | SOFC-XV: 15th International Symposium on Solid Oxide Fuel Cells | ||||||||||||||||||||||||||||||||||||
Event Location: | Hollywood, Florida, USA | ||||||||||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||||||||||
Event Start Date: | 23 July 2017 | ||||||||||||||||||||||||||||||||||||
Event End Date: | 28 July 2017 | ||||||||||||||||||||||||||||||||||||
Organizer: | The Electrochemical Society | ||||||||||||||||||||||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||||||||||||||||||||||
HGF - Program: | Storage and Cross-linked Infrastructures | ||||||||||||||||||||||||||||||||||||
HGF - Program Themes: | Fuel cells | ||||||||||||||||||||||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||||||||||||||||||||||
DLR - Program: | E SP - Energy Storage | ||||||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | E - Electrochemical Processes (Fuel Cells) (old), E - Elektrochemical Processes (Electrolysis) (old) | ||||||||||||||||||||||||||||||||||||
Location: | Stuttgart | ||||||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Engineering Thermodynamics > Electrochemical Energy Technology | ||||||||||||||||||||||||||||||||||||
Deposited By: | Bohn, Corinna | ||||||||||||||||||||||||||||||||||||
Deposited On: | 29 Nov 2017 15:53 | ||||||||||||||||||||||||||||||||||||
Last Modified: | 17 Oct 2024 14:55 |
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