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EIS Analysis Of Porous Electrodes Using A “Three-Electrode” System Objectives: Re-interpret the EIS of porous electrodes by employing reference electrodes, analyzing frequency-dependent behaviors, and understanding their relationship to ion transport and capacitance. POPULAR UNDERSTANDINGS
NEW UNDERSTANDINGS
High-frequency: Dominated by ion transport within pore channels and solid electrolyte interphase (SEI)
Experimental Configuration: three-electrode systems implemented in order to isolate working electrode responses EIS Analysis: Nyquist plots and Distribution of Relaxation Times (DRT) to deconvolute overlapping processes
Mid-frequency: influenced by pseudo-capacitance, distinct from electrical double layer (EDL) capacitance
Source: Angew. Chem. Int. Ed. 2024, 63, e202406054 (doi.org/10.1002/anie.202406054), J. Electrochem. Soc., 162 (13) A7037-A7048 (2015)
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