Table 3. EIS Fitting Data with the Equivalent Circuit Models.
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Impedance parameters |
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Sample | Days | Fitted model | Rf (Ω·cm2) | Yf (F·sn–1·cm–2) | nf | Rct (Ω·cm2) | Ydl (F·sn–1·cm–2) | ndl |
MSN-CP3% | 0 | R(QR) | 9.5 × 1010 | 5.6 × 10–10 | 0.98 | |||
1 | R(QR) | 1.3 × 1010 | 7.1 × 10–10 | 0.97 | ||||
2 | R(QR) | 1.7 × 1010 | 7.5 × 10–10 | 0.97 | ||||
3 | R(QR) | 3.3 × 109 | 7.6 × 10–10 | 0.97 | ||||
5 | R(QR) | 2.2 × 109 | 7.9 × 10–10 | 0.97 | ||||
7 | R(QR) | 2 × 109 | 8 × 10–10 | 0.96 | ||||
CP3% | 0 | R(QR) | 4 × 1010 | 8.2 × 10–10 | 0.94 | |||
1 | R(Q(R(QR))) | 4 × 107 | 1.2 × 10–9 | 0.94 | 6.8 × 107 | 2.4 × 10–9 | 0.82 | |
2 | R(Q(R(QR))) | 2.9 × 106 | 1.1 × 10–9 | 0.96 | 1.9 × 107 | 6.6 × 10–7 | 0.35 | |
3 | R(Q(R(QR))) | 1.1 × 106 | 1.7 × 10–9 | 0.92 | 4.6 × 1011 | 7 × 10–7 | 0.50 | |
5 | R(Q(R(QR))) | 1 × 106 | 2 × 10–9 | 0.91 | 5.3 × 1011 | 6.7 × 10–7 | 0.41 | |
7 | R(Q(R(QR))) | 1.1 × 106 | 1.8 × 10–9 | 0.92 | 2.2 × 1011 | 7 × 10–7 | 0.46 | |
CP5% | 0 | R(QR) | 8.5 × 1010 | 5.5 × 10–10 | 0.96 | |||
1 | R(Q(R(QR))) | 6.2 × 107 | 6.5 × 10–10 | 0.97 | 1 × 109 | 1 × 10–8 | 0.81 | |
2 | R(Q(R(QR))) | 2.9 × 107 | 7 × 10–10 | 0.96 | 4.3 × 1012 | 9.9 × 10–8 | 0.72 | |
3 | R(Q(R(QR))) | 3.1 × 107 | 7.1 × 10–10 | 0.97 | 7.8 × 1012 | 8.8 × 10–8 | 0.58 | |
5 | R(Q(R(QR))) | 5.4 × 106 | 7.1 × 10–10 | 0.96 | 1.5 × 107 | 1.2 × 10–7 | 0.54 | |
7 | R(Q(R(QR))) | 2.6 × 106 | 1 × 10–9 | 0.96 | 4.4 × 107 | 8.1 × 10–8 | 0.55 |