%0 Journal Article
%A Harboe, S.
%A Lupetin, P.
%A Guillon, O.
%A Menzler, Norbert H.
%T Investigation of LSM/8YSZ cathode within an all-ceramic SOFC, Part II: Optimization of performance and co-sinterability
%J Journal of the European Ceramic Society
%V 40
%N 10
%@ 0955-2219
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2020-01805
%P 3618 - 3631
%D 2020
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000528298800015
%R 10.1016/j.jeurceramsoc.2020.03.010
%U https://juser.fz-juelich.de/record/875102