Abstract:In this study, an equivalent circuit model of electric double-layer capacitors (EDLCs) reflecting a branched-pore structure for activated carbon was developed. Geometrical parameters such as pore diameter, pore depth, and branch number of the macropore, mesopore, and micropore were estimated from the analysis of the electrochemical impedance for EDLCs, combining theoretical equations and an equivalent circuit model. The developed equivalent circuit model was applied to charge/discharge simulations of EDLCs. Th… Show more
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