Abstract
Minimising transport of chromium from the metallic interconnect (e.g. of Crofer 22APU) to the cathode in a planar solid oxide fuel cell is done by application of a coating between the two parts. The coating is applied by slurry coating, and taken through stack initialisation it transforms into a stable and densely grown barrier layer, which minimises both the evaporation of chromium from the interconnect surface and the electrical contact resistance between the interconnect and the cathode. Between comparable stack element tests with and without coatings at 750 degrees C, the degradation rate in terms of power density decreased from 6.5% per 1000h to very low levels (
Original language | English |
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Journal | E C S Transactions |
Volume | 7 |
Issue number | 1 |
Pages (from-to) | 2145-2154 |
ISSN | 1938-5862 |
DOIs | |
Publication status | Published - 2007 |
Event | 10th International symposium on solid oxide fuel cells - Nara New Public Hall, Nara, Japan Duration: 3 Jun 2007 → 8 Jun 2007 Conference number: 10 |
Conference
Conference | 10th International symposium on solid oxide fuel cells |
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Number | 10 |
Location | Nara New Public Hall |
Country/Territory | Japan |
City | Nara |
Period | 03/06/2007 → 08/06/2007 |