TY  - JOUR
AU  - Harboe, S.
AU  - Lupetin, P.
AU  - Guillon, O.
AU  - Menzler, Norbert H.
TI  - Investigation of LSM/8YSZ cathode within an all-ceramic SOFC, Part II: Optimization of performance and co-sinterability
JO  - Journal of the European Ceramic Society
VL  - 40
IS  - 10
SN  - 0955-2219
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2020-01805
SP  - 3618 - 3631
PY  - 2020
AB  - This paper focuses on the cathode and current collector layers of a co-sintered, all-ceramic solid oxide fuel cell (SOFC) concept. Challenges to reach good electrochemical performance have to be overcome, due to more demanding manufacturing conditions, including a relatively high co-sintering temperature. Master sintering curves show that the sintering activity of lanthanum strontium manganite (LSM) is significantly higher than that of 8-mol% yttria stabilized zirconia (8YSZ). By applying a double-layered cathode and a current collector with optimized microstructures the best electrochemical performance of the cathode is 0.26 cm at 800 C, evaluated from polarization resistances of 8YSZ electrolyte-supported symmetric cells post-sintered at 1150 C  C. The cathode and current collector materials are adapted to fit the co-sintering process by adjustment of the paste compositions. Half-cells consisting of silicate mechanical support, LSM current collector, LSM mixed with 8YSZ composite cathode and 8YSZ electrolyte are co-sintered porous and defect-free at 1150 C  C.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000528298800015
DO  - DOI:10.1016/j.jeurceramsoc.2020.03.010
UR  - https://juser.fz-juelich.de/record/875102
ER  -