Compact thermal modeling of Electric Double-Layer-Capacitors

Self-heating of electric double-layer-capacitors during charge and discharge current cycles has a strong influence on performance, reliability and safety. This paper presents a compact thermal modelling of electric double-layer-capacitors suitable for determining static and dynamic temperature under...

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Bibliographic Details
Main Authors: Guillemet, P., Pascot, C., Scudeller, Y.
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Circuits
Computational efficiency
Electrical safety
Electrodes
Finite element methods
Material properties
Packaging
Temperature
Voltage
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Summary:Self-heating of electric double-layer-capacitors during charge and discharge current cycles has a strong influence on performance, reliability and safety. This paper presents a compact thermal modelling of electric double-layer-capacitors suitable for determining static and dynamic temperature under cycling, at any point of the active components, as a function of topology, materials properties, and operating conditions. Thermal circuits have been created by combining different branches of multi-ports matrix elements referring to each direction of heat transport. Circuits were developed by considering a uniform volume heat generation and, for each branch, a one-directional thermal transport. Performance of the modelling has been investigated in terms of accuracy and computational cost. Compact models were found in good agreement with simulations by the finite-elements method. Deviation did not exceed 8 %.
DOI:10.1109/THERMINIC.2008.4669891