A high-precision approach to reconstruct distribution of relaxation times from electrochemical impedance spectroscopy

• This approach is free of adjusting parameter.
• The DRT does not contain pseudo peaks.
• Discontinuities in DRT can be captured.
• Well-established algorithm is available.

A new Tikhonov regularization approach without adjusting parameters is proposed for reconstructing distribution of relaxation time (DRT). It is capable of eliminating the pseudo peaks and capturing discontinuities in the DRT, making it feasible to resolve the number and the nature of electrochemical processes without making assumptions.