A frequency-domain approach to dynamical modeling of electrochemical power sources

Karden, Eckhard; Buller, S.; Doncker, Rik W. De

doi:10.1016/s0013-4686(02)00091-9

Cited by 101 publications

(65 citation statements)

References 20 publications

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“…A main advantage of the EIS technique over other parameterization techniques is represented by its feature to relate EEC elements to the physicochemical process that occur inside the battery [28,30]. Thus, in the present work, the first term in Equation (5) is used to describe the inductive behavior at high frequencies, the second term is used to calculate the over-voltage caused by the ohmic resistance (Vohmic), the third term is used to calculate the over-voltage corresponding to the electrochemical reaction at inner surfaces), and Vdiff represents the diffusion over-voltage (caused by a deficit or surplus of reactants at the reaction's location).…”

Section: Equivalent Electrical Circuit Modelmentioning

confidence: 99%

Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

et al. 2016

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Lithium-ion (Li-ion) batteries are complex energy storage devices with their performance behavior highly dependent on the operating conditions (i.e., temperature, load current, and state-of-charge (SOC)). Thus, in order to evaluate their techno-economic viability for a certain application, detailed information about Li-ion battery performance behavior becomes necessary. This paper proposes a comprehensive seven-step methodology for laboratory characterization of Li-ion batteries, in which the battery's performance parameters (i.e., capacity, open-circuit voltage (OCV), and impedance) are determined and their dependence on the operating conditions are obtained. Furthermore, this paper proposes a novel hybrid procedure for parameterizing the batteries' equivalent electrical circuit (EEC), which is used to emulate the batteries' dynamic behavior. Based on this novel parameterization procedure, the performance model of the studied Li-ion battery is developed and its accuracy is successfully verified (maximum error lower than 5% and a mean error below 8.5 mV) for various load profiles (including a real application profile), thus validating the proposed seven-step characterization methodology.

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Section: Equivalent Electrical Circuit Modelmentioning

confidence: 99%

Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

et al. 2016

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“…For these reasons, we will keep α 2 and τ 2 equal to a value which will depend only on SOC. The behaviour of R 2 as a function of the current level is modelling by Equation (12). The data obtained for different SOC can be fitted with the same parameter value of A and B.…”

Section: Identification Of R 1 and R 2 //Cpementioning

confidence: 99%

“…The measurement of impedance can be done with or without current polarization. When the spectrometer can supply sufficient continuous current, it is possible to highlight non linearity of the battery impedance with the current level [1,9,10,12,13,14]. Another frequency method to identify battery impedance consists of using Laplace transform of temporal solicitations [15,16].…”

Section: Introductionmentioning

confidence: 99%

Frequency and Temporal Identification of a Li-ion Polymer Battery Model Using Fractional Impedance

Montaru

Pélissier

2009

Oil & Gas Science and Technology

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Résumé -Identification fréquentielle et temporelle d'un modèle de batterie Li-polymère utilisant une impédance fractionnaire -La modélisation des batteries lithium de fortes puissances est un moyen performant de dimensionner le pack de batterie des véhicules hybrides. De plus, cet outil peut être utilisé pour évaluer précisément les caractéristiques d'une batterie à chaque étape de sa vie. Jusqu'à maintenant, les structures de modèles diffèrent selon l'utilisation du modèle et les limitations de la simulation. Il apparaît au travers des mesures de spectroscopie d'impédance que le modèle doit comprendre une impédance d'ordre non entier. Or, ce type d'impédance ne peut pas être simulé par les logiciels dédiés aux véhicules hybrides et nécessite donc une approximation. Par ailleurs, les mesures d'impédance sont réalisées à faibles courants par rapport aux intensités observées en usage normal, ce qui peut induire des erreurs de modélisation dans le cas où l'impédance varie avec le courant. Ce papier présente un modèle qui utilise une impédance d'ordre non entier de gamme de fréquence bornée et qui prend en compte le phénomène de non linéarité. Les paramètres sont identifiés partiellement par spectroscopie d'impédance pour la partie haute fréquence et par chronopotentiométrie pour la partie basse fréquence dans une large gamme d'intensité. Le modèle est validé avec des échelons de courant de fortes intensités et un profil de courant simulé sur un logiciel de simulation de véhicule hybride. L'hypothèse de non linéarité est vérifiée. Abstract -Frequency and Temporal Identification of a Li-ion Polymer Battery Model Using Fractional Impedance -The modelling of high power Lithium batteries may work as a powerful tool in

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“…In this case, impedance measurements are usually carried out in a two-electrode configuration. Impedance studies are also employed to acquire information about the degree of degradation of electrode materials [16][17][18], intercalation phenomena [19][20][21][22][23], reagent transport [24,25], hydrogen absorption [26][27][28][29], electrode reaction mechanism [30][31][32], etc. For all of these applications, a three-electrode configuration is generally used.…”

Section: Introductionmentioning

confidence: 99%

A complete impedance analysis of electrochemical cells used as energy sources

Ślepski

Darowicki

Janicka

et al. 2012

J Solid State Electrochem

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A comprehensive description of impedance of electrochemical systems has been presented, along with the assumptions of the method used. In this method, a multisinusoidal current excitation signal is used. The changes of potential of both the electrodes and the potential difference between these electrodes are all registered simultaneously as a function of time. The proposed method offers the possibility of separately determining the instantaneous value of impedance of each electrode as well as the impedance of a twoelectrode system. The short-time Fourier transform of time registers allow the determination of changes in the measured impedance values over time. The method has been successfully verified with an electrical equivalent circuit simulating a non-stationary two-electrode system. The values of the impedance of particular components during operation of the fuel cell under a changing load have been obtained.

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A frequency-domain approach to dynamical modeling of electrochemical power sources

Cited by 101 publications

References 20 publications

Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

Generalized Characterization Methodology for Performance Modelling of Lithium-Ion Batteries

Frequency and Temporal Identification of a Li-ion Polymer Battery Model Using Fractional Impedance

A complete impedance analysis of electrochemical cells used as energy sources

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