I have an EIS curve of a Li ion battery and I had characteristic frequency (fmax and fmin) of the curve. How can I calculate or have an idea about the charge-transfer or diffusion impedance (warburg)?
apply/use an EIS-modeling[1] to fit[2] your Li ion battery-cell. The partial (modeling) circuit components will help you to answer most of you questions.
1. Modeling and Applications of Electrochemical Impedance Spectroscopy (EIS) for Lithium-ion Batteries https://jecst.org/upload/pdf/jecst-2019-00528.pdf