Table 2 Summary of the fitted parameters from EIS data shown in Figs 4 and 6 under different operating conditions for the TY and CY cells.
Figure 6
EIS experiments recorded under current load at 700 °C for the (a) TY and (b) CY cells.
Full size image

Sample	Temp (°C)	Steam content (%)	Polarization	R_s (Ωcm²)	R₁-HF (Ωcm²) ∼10–20 kHz	R₂-MF (Ωcm²) ∼0.1–2 kHz	R₃-LF (Ωcm²) ∼1–10 Hz	ASR (Ωcm²)
TY	800	3	OCV	0.31 ± 0.02	0.035 ± 0.004	0.036 ± 0.005	1.10 ± 0.05	1.48 ± 0.08
TY	700	50	OCV	0.44 ± 0.01	0.27 ± 0.01	0.043 ± 0.002	0.11 ± 0.01	0.86 ± 0.03
TY	700	50	200 mA	0.42 ± 0.03	0.26 ± 0.02	0.041 ± 0.002	0.11 ± 0.01	0.83 ± 0.06
TY	700	50	−200 mA	0.47 ± 0.03	0.26 ± 0.02	0.057 ± 0.002	0.14 ± 0.01	0.93 ± 0.06
CY	800	3	OCV	0.19 ± 0.01	0.04 ± 0.01	0.58 ± 0.02	0.74 ± 0.02	1.55 ± 0.06
CY	700	50	OCV	0.21 ± 0.01	0.22 ± 0.01	0.54 ± 0.01	0.68 ± 0.02	1.65 ± 0.05
CY	700	50	200 mA	0.21 ± 0.01	0.20 ± 0.02	0.81 ± 0.02	0.62 ± 0.02	1.84 ± 0.07
CY	700	50	−200 mA	0.22 ± 0.01	0.20 ± 0.02	0.86 ± 0.03	0.20 ± 0.02	1.48 ± 0.08

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