. 2023 Aug 8;15(33):39218–39233. doi: 10.1021/acsami.3c05240

Table 3. NLLS Analyses of the Nyquist Plots Reported in Figure 5 Recorded by EIS after CV (Potential between 1.5 and 4.3 V vs Li⁺/Li) for the Li–O₂ Cells Using the Investigated GDLs as Cathodes^a.

GDL	circuit	R₁ [Ω]	R₂ [Ω]	R₁ + R₂ [Ω]	χ²
22BB	R_e(R₁Q₁)(R₂Q₂)Q_g	7.4 ± 0.6	78.9 ± 0.8	86.3 ± 1.4	1 × 10^–4
28BC	R_e(R₁Q₁)(R₂Q₂)Q_g	36.0 ± 1.4	78.7 ± 1.6	115 ± 3	7 × 10^–6
36BB	R_e(R₁Q₁)(R₂Q₂)Q_g	17.8 ± 0.8	78.1 ± 0.9	95.9 ± 1.7	5 × 10^–5
39BB	R_e(R₁Q₁)(R₂Q₂)Q_g	7.1 ± 0.9	86.1 ± 1.1	93.2 ± 2.0	1 × 10^–4

The NLLS fitting was performed with Boukamp software, and only χ² values of the order of 10^–4 or lower were accepted.^37,38

Table 3. NLLS Analyses of the Nyquist Plots Reported in Figure 5 Recorded by EIS after CV (Potential between 1.5 and 4.3 V vs Li+/Li) for the Li–O2 Cells Using the Investigated GDLs as Cathodesa.