Equivalent circuit of Warburg impedance
Nikolay A. Sekushin · Russian Journal of Electrochemistry · 2009
Justification is presented for the principles of construction of the simplest equivalent circuit for Warburg impedance that follow from the properties of the conductivity function (CF) and logarithmic conductivity function (LCF) of RC two-terminal networks with lumped and distributed parameters. The possibility is shown of presenting CF in the form of a sum of parameters of the same type or in the form of a product of factors of two types. The methods of construction of asymptotic LCFs are considered. Relationships are obtained that allow modeling Warburg impedance with two and three serial capacitive circuits on the basis of the performed analysis.