Contribution of Surface Distributions to Constant-Phase-Element (CPE) Behavior: 2. Capacitance [PDF]
Electrochimica Acta, 2016 Finite–element simulations were performed to determine the influence of a radial distribution of capacitance on the impedance of ideally polarized disk electrodes. The characteristic length associated with this form of distribution was found to be the period of the distribution.
Alexander, Christopher L. +2 more
exaly +5 more sources
Constant Phase Element in the Time Domain: The Problem of Initialization [PDF]
Energies, 2022 The constant phase element (CPE) is found in most battery and supercapacitor equivalent circuit models proposed to interpret data in the frequency domain.
Juan Antonio López-Villanueva +1 more
doaj +4 more sources
Contribution of Surface Distributions to Constant-Phase-Element (CPE) Behavior: 1. Influence of Roughness [PDF]
Electrochimica Acta, 2015 Abstract Finite–element simulations were used to calculate the influence of surface roughness of V-shaped grooves on the impedance of ideally polarized disk electrodes. The characteristic length associated with roughness was found to depend on the width or period of the roughness as well as the roughness factor.
Alexander, Christopher L. +2 more
exaly +5 more sources
Simple circuit equivalents for the constant phase element. [PDF]
PLoS ONE, 2021 The constant phase element (CPE) is a capacitive element with a frequency-independent negative phase between current and voltage which interpolates between a capacitor and a resistor.
Sverre Holm +2 more
doaj +2 more sources
Interpretation of Dielectric Properties for Materials showing Constant-Phase Element (CPE) Impedance Response [PDF]
ECS Meeting Abstracts, 2012 Abstract not Available.
Orazem M.E. +9 more
core +11 more sources
On the use of a constant phase element (CPE) in electrochemistry
Current Opinion in Electrochemistry, 2022 Several techniques can be used to experimentally determine the interfacial capacitance of an electrode, which is a crucial parameter used for quantifying the efficiency of supercapacitors. However, the values obtained from cyclic voltammetry can be significantly different from those extracted from electrochemical impedance spectroscopy analysis.
Gateman, Samantha +5 more
openaire +4 more sources
Impedance of Nonelectroneutral Solid Electrolyte Interphases With Nanopores: A Theoretical Model [PDF]
Advanced ScienceSolid‐electrolyte interphases (SEI) in lithium batteries reportedly possess a charged solid‐solid interface and, in some cases, nanopores, while the effects of these two nonidealities on the impedance are ambiguous.
Chenkun Li, Jun Huang
doaj +2 more sources
The influence of sintering condition on microstructure, phase composition, and electrochemical performance of the scandia-ceria-Co-doped zirconia for SOFCs [PDF]
Science of Sintering, 2023 Samples of 6 mol% Sc2O3 - 1 mol% CeO2 co-doped ZrO2 were fabricated by conventional ceramic processing methods and sintered at various temperatures from 1000 to 1650°C in air.
Elahi Pooya +3 more
doaj +1 more source
Zaštita Materijala, 2022 Considering literature of electrochemical impedance spectroscopy (EIS) it was discovered that for calculation of the value of double-layer capacitance (Cdl) from the constant phase element (CPE) two equations, with or without solution resistance (Rs ...
Vladimir D. Jović
doaj +1 more source
Difference between Charge–Voltage Relations of Ordinary and Fractional Capacitors
Fractal and Fractional, 2023 In an ordinary time-varying capacitor, there is debate on whether a time-domain multiplication or a time-domain convolution of capacitance and voltage determines charge.
Eirik Brenner Marthins, Sverre Holm
doaj +1 more source