Novel Experimental Identification Method for a Supercapacitor Multipore Model in Order to Monitor the State of Health

Supercapacitors (SCs) impedance modeling represents one important key to get information for SCs health monitoring and simulation. As a matter of fact, SCs behavior is dependent on various parameters such as pore size distribution of electrodes, electrolyte state, temperature, aging, etc. We propose...

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Bibliographic Details
Published in:	IEEE transactions on power electronics Vol. 31; no. 1; pp. 548 - 559
Main Authors:	German, Ronan, Hammar, Abderrahmane, Lallemand, Richard, Sari, Ali, Venet, Pascal
Format:	Journal Article
Language:	English
Published:	New York IEEE 01-01-2016 The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Institute of Electrical and Electronics Engineers
Subjects:	Aging Capacitors Electric power Electrical equipment Electrical Equivalent Circuit Electrochemical Double Layer Capacitors Electrodes Engineering Sciences Experimental Identification Experiments Identification methods Impedance Impedance modeling Integrated circuit modeling Ions Mathematical models Multi-Pore model Physical properties Pore size Porosity Resistance Single Pore model Supercapacitors Ultracapacitors Validity ultracapacitors experimental identification impedance modeling multipore (MP) model Aging single-pore (SP) model supercapacitors (SCs) electrical equivalent circuit electrochemical double-layer capacitors Impedance modeling Single Pore model Electrochemical Double Layer Capacitors Supercapacitors Electrical Equivalent Circuit Ultracapacitors Multi-Pore model Aging Affiliation a concerns Experimental Identification
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Summary:	Supercapacitors (SCs) impedance modeling represents one important key to get information for SCs health monitoring and simulation. As a matter of fact, SCs behavior is dependent on various parameters such as pore size distribution of electrodes, electrolyte state, temperature, aging, etc. We propose in this study to model SC taking into account physical considerations. Basing on the theory on homogenous structure impedance, we first define the single pore model using the uniform size of pores distribution. In the second step, we attempt to generalize this circuit model considering an electrode with different pores sizes or different penetrabilities of the pores. This model called multipore (MP) model (or multipenetrability model) has been developed by our laboratories. This model allows analyzing the behavior of SC by modeling each group of electrode pores as a branch of an electrical equivalent circuit. This paper is the first in the literature to give a simple and reproducible method for MP model parameters identification. The validity of the identification method will also be verified at different SC aging rates thanks to experimental aging tests.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0885-8993 1941-0107
DOI:	10.1109/TPEL.2015.2408457