Table 1.

Data for semi‐logarithmic regressions from Figure 4 c.

Model ϕ on=slope⋅ln(SOC)+b	Slope [mV]	R 2	Max unbiased SOC [%]
ϕ on,photo—bare	99	0.988	9.4
ϕ on,photo—coated	105	0.998	12.1
ϕ on,dark—bare	67	0.981	–
ϕ on,dark—coated	72	0.999	–