Insight into the origin of pseudo peaks decoded by the distribution of relaxation times/ differential capacity method for electrochemical impedance spectroscopy

Jia Wang,Qiu-An Huang,Weiheng Li,Juan Wang,Yuxuan Bai,Yufeng Zhao,Xifei Li,Jiujun Zhang

Journal of Electroanalytical Chemistry（2022）

引用 16|浏览0

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摘要

•Identify the DRT/DDC symmetry in terms of model, spectrogram, algorithm, and decoded peak.•Evaluate peaks decoded by DRT/DDC with respect to penalty factor, peak intensity, and model.•Reveal the origin of pseudo peaks decoded by DRT/DDC from the viewpoint of the symmetry.•Validate the solution to pseudo peaks decoded by DRT/DDC based on the simulated impedance.

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关键词

Electrochemical impedance spectroscopy (EIS),Distribution of relaxation times (DRT),Distribution of differential capacity (DDC),Pseudo peak,Symmetry

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