Electrochemical performance of a solid oxide fuel cell with an LSCF cathode under different oxygen concentrations

Electrochemical characteristics and performance of anode-supported SOFCs fabricated using carbon microspheres as a pore-former

“…The obtained activation energy (representing the energy barrier for the ionic movement) was close to the typical value for zirconia-based electrolyte materials (of around 0.8 eV) [41e43]. This suggests that the electrolyte resistance dominates due to its lowest conductivity in a cell ohmic ASR behavior [43]. The electrodes also have significantly greater conductivities so that their contributions to the cell ohmic ASR can be neglected i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 7 ( 2 0 1 2 ) 1 9 0 4 5 e1 9 0 5 4…”

Stability Investigation for Symmetric Solid Oxide Fuel Cell with La0.4Sr0.6Co0.2Fe0.7Nb0.1O3-δElectrode

“…La 1-x Sr x Co 1-y Fe y O 3-δ as cathode material has been widely used for its high oxygen catalytic activity. 20 La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ (LSCF) for SSOFC electrode material was also researched. However, at 550 • C, the open circuit voltage (OCV) (0.2 V) measured is much lower than the ideal OCV (1.03 V) calculated from the Nernst equation for SOFCs using wet 5% H 2 .…”

Extremely Thin Bilayer Electrolyte for Solid Oxide Fuel Cells (SOFCs) Fabricated by Chemical Solution Deposition (CSD)

“…The maximum power density was ∼1.3 W cm −2 and the power density at 0.8 V was 0.74 W cm −2 at 650 °C, which implies that the cell performance could be significantly improved by decreasing the electrolyte thickness and employing the nano‐structured MIEC cathode. Specifically, the ohmic ASR at 650 °C decreased from 0.12 Ω cm 2 to 0.038 Ω cm 2 as the total electrolyte thickness decreased from 7–8 μm (prepared by screen printing) to 500 nm (prepared by CSD) (Figure S4, Supporting Information), and the polarization ASR was 0.226 Ω cm 2 (Figure 3b), which is significantly lower than the values of conventional SOFCs measured at similar operating temperatures 19, 20…”