Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

CFY-stack technology: The next design

 
: Bienert, Christian; Brandner, Marco; Skrabs, S.; Venskutonis, Andreas; Sigl, L.S.; Megel, Stefan; Beckert, Wieland; Trofimenko, Nikolai; Kusnezoff, Mihails; Michaelis, Alexander

:
Fulltext urn:nbn:de:0011-n-3601209 (753 KByte PDF)
MD5 Fingerprint: 30d59a2fc31a65679abe24e81aec2e59
Created on: 16.4.2016


Singhal, S. C. (Ed.) ; Electrochemical Society -ECS-:
The ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV : Glasgow, July 26-31, 2015
Pennington, NJ: ECS, 2015 (ECS transactions 68.2015, Nr.1)
pp.2159-2168
International Conference on Electrochemical Energy Conversion and Storage <2015, Glasgow>
International Symposium on Solid Oxide Fuel Cells (SOFC) <14, 2015, Glasgow>
English
Conference Paper, Journal Article, Electronic Publication
Fraunhofer IKTS ()
digital storage; electrolytes; fuel storage; regenerative fuel cells

Abstract
The stack concept of electrolyte supported cells is applicable for SOFC as well as SOEC. High power densities and efficiencies comparable to stacks based on anode supported cells can be achieved, however, in unison with higher robustness. Incorporating an electrolyte made of fully scandia-stabilized zirconia paired with chromium-based CFY interconnects of matched CTEs, a feasible stack concept was created with the focus on long-term stability in regard to high temperature corrosion and thermal cycling. Onward development of the stack design as well as stack data of more than 20,000 hours of a single stack are presented. Using the same material combinations and the same footprint as for the MK351-design, the newly developed MK352-design allows for easier stack assembling and system integration. Slight modifications in interconnect design enable lower pressure drops over the stack, which, paired with enhanced tolerance chains lead to enhanced stack performance, especially in regard to system cycling.

: http://publica.fraunhofer.de/documents/N-360120.html