Novel Method for the Three-Dimensional Simulation of Mechanical Ageing of Battery Modules

Tolga Bozalp, Muhammad Siddiqui, Holger Opfer, Thomas Vietor

2021

Abstract

This study introduces a novel method for modelling the mechanical ageing behavior of battery modules over lifetime, based on a simplified, mathematical approach. The focus is placed on the force displacement behavior of battery modules due to the swelling of its cells in the course of electrochemical ageing. In the first step, the development of a proper modelling method is conducted, before the implementation of the single-domain model is carried out. Multiple size scales are included in this model, since cell and battery module level are considered. The model implementation is realized with two different approaches for examination of simulation trade-offs regarding accuracy and computing time. In the first approach, the module is modelled using the Finite-Element-Analysis (FEA) with a high number of elements. In an alternative, more simplified approach, the module model in form of a mathematical, analogous model is implemented with a significantly fewer number of elements. In both cases, the model layout is similar. Finally, both the approaches are validated with experimental measurements and compared regarding accuracy and computing time, amongst other parameter.

Paper Citation

in Harvard Style

Bozalp T., Siddiqui M., Opfer H. and Vietor T. (2021). Novel Method for the Three-Dimensional Simulation of Mechanical Ageing of Battery Modules. In Proceedings of the 11th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH, ISBN 978-989-758-528-9, pages 386-393. DOI: 10.5220/0010572703860393

in Bibtex Style

@conference{simultech21,
author={Tolga Bozalp and Muhammad Siddiqui and Holger Opfer and Thomas Vietor},
title={Novel Method for the Three-Dimensional Simulation of Mechanical Ageing of Battery Modules},
booktitle={Proceedings of the 11th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,},
year={2021},
pages={386-393},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010572703860393},
isbn={978-989-758-528-9},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 11th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,
TI - Novel Method for the Three-Dimensional Simulation of Mechanical Ageing of Battery Modules
SN - 978-989-758-528-9
AU - Bozalp T.
AU - Siddiqui M.
AU - Opfer H.
AU - Vietor T.
PY - 2021
SP - 386
EP - 393
DO - 10.5220/0010572703860393