Thermo-Electric Battery Model Reduction: from Finite-Element Models to Equivalent Circuits
Mirjana Jurisic
Virtual Vehicle
https://tugraz.webex.com/meet/karin.zojer
11:15 - 12:15 Wednesday 26 January 2022 PH01150 Regardless of the field of application, Li-ion batteries gained wide popularity over the years and are required to operate safely under different conditions (external influences like extreme temperature changes, physical damage, or stresses). Hence, monitoring and analysis of the thermal battery behavior play a key role to ensure the reliability and functionality of a new battery.
The expensive production and testing of battery prototypes is reduced through computational modeling and simulation of electrical and thermal battery behavior in finite element analysis (FEA) software. FEA software is often used for a detailed analysis of a battery model. The drawback of this analyzing method is the fact that it can be very time consuming. On the other side of the spectrum, we have electrical equivalent circuit models which are fast but do not offer a detailed analysis of the model since they entail the loss of spatial resolution and physical meaning.
This talk will offer an insight into the development process of an automated tool for the deconstruction of coupled thermoelectric 3D finite element battery models into a thermal equivalent circuit model while keeping the geometrical information and occurring physical processes.
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Institute of Solid State Physics
