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Article

Evaluation of Modelling and Simulation Strategies to Investigate the Mechanical Integrity of a Battery Cell Using Finite Element Methods

Institute for Engineering Design, Technische Universität Braunschweig, Hermann-Blenk-Straße 42, 38108 Braunschweig, Germany
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Academic Editors: Elham Sahraei and Sigit P. Santosa
Energies 2021, 14(11), 2976; https://doi.org/10.3390/en14112976
Received: 15 April 2021 / Revised: 13 May 2021 / Accepted: 18 May 2021 / Published: 21 May 2021
(This article belongs to the Special Issue Crash Safety of Lithium-Ion Batteries)
The mechanical integrity of a lithium ion battery cell can be evaluated using finite element (FE) simulation techniques. In this study, different FE modelling approaches including heterogeneous, homogeneous, hybrid and sandwich methods are presented and analysed. The basic capabilities of the FE-methods and their suitability to simulate a real mechanical safety test procedures on battery cells are investigated by performing a simulation of a spherical indentation test on a sample pouch cell. For each modelling approach, one battery cell model was created. In order to observe the system behaviour, relevant parametric studies involving coefficient of friction and failure strain of separator were performed. This studied showed that these parameters can influence the maximum force and the point of failure of the cell. Furthermore, the influence of an anisotropic separator on the results was also investigated. The advantages and disadvantages of each modelling approach are discussed and a simplified approach with a partial cell modelling is suggested to further reduce the simulation time and complexity. View Full-Text
Keywords: modelling; simulation; FE; crash; battery; cell; design; homogenised; jellyroll; pouch; lithium-ion; indentation modelling; simulation; FE; crash; battery; cell; design; homogenised; jellyroll; pouch; lithium-ion; indentation
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MDPI and ACS Style

Kulkarni, S.S.; Vysoudil, F.; Vietor, T. Evaluation of Modelling and Simulation Strategies to Investigate the Mechanical Integrity of a Battery Cell Using Finite Element Methods. Energies 2021, 14, 2976. https://doi.org/10.3390/en14112976

AMA Style

Kulkarni SS, Vysoudil F, Vietor T. Evaluation of Modelling and Simulation Strategies to Investigate the Mechanical Integrity of a Battery Cell Using Finite Element Methods. Energies. 2021; 14(11):2976. https://doi.org/10.3390/en14112976

Chicago/Turabian Style

Kulkarni, Shraddha S., Filip Vysoudil, and Thomas Vietor. 2021. "Evaluation of Modelling and Simulation Strategies to Investigate the Mechanical Integrity of a Battery Cell Using Finite Element Methods" Energies 14, no. 11: 2976. https://doi.org/10.3390/en14112976

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