In other words, because 𝑅 𝑐𝑡 0 is inversely proportional to I0, a higher linearized resistance causes the exchange voltage to be reached at a proportionally lower exchange current. From these observations, it can be understood that the non-linearity of BV kinetics manifests as a decrease in charge-transfer resistance with increasing current above I > I0, and that the overpotential is the true driving force of this non-linearity. Additionally, for any values of α and I0, it can be proven that