TY  - JOUR
AU  - Blum, Ludger
AU  - Fang, Qingping
AU  - de Haart, L. G. J.
AU  - Quadakkers, Willem J.
AU  - Gross-Barsnick, Sonja-Michaela
AU  - Menzler, Norbert H.
TI  - Long-term operation of solid oxide fuel cells and preliminary findings on accelerated testing
JO  - International journal of hydrogen energy
VL  - 45
IS  - 15
SN  - 0360-3199
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2020-00283
SP  - 8955-8964
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000523643400081
DO  - DOI:10.1016/j.ijhydene.2020.01.074
UR  - https://juser.fz-juelich.de/record/872811
ER  -