PreprintArticleVersion 2Preserved in Portico This version is not peer-reviewed
Influence of Traction Battery Arrangement on the Risk of Thermal Runaway and on the Loads Suffered by an Electric Vehicle Occupant in Case of a Side Collision
Version 1
: Received: 6 July 2023 / Approved: 7 July 2023 / Online: 10 July 2023 (06:31:36 CEST)
Version 2
: Received: 14 July 2023 / Approved: 14 July 2023 / Online: 17 July 2023 (02:49:32 CEST)
Olona, A.; Castejón, L.; Valladares, D. Influence of Traction Battery Arrangement on Risk of Thermal Runaway and Loads Suffered by Electric Vehicle Occupant during Side Collision. Energies2023, 16, 6892.
Olona, A.; Castejón, L.; Valladares, D. Influence of Traction Battery Arrangement on Risk of Thermal Runaway and Loads Suffered by Electric Vehicle Occupant during Side Collision. Energies 2023, 16, 6892.
Olona, A.; Castejón, L.; Valladares, D. Influence of Traction Battery Arrangement on Risk of Thermal Runaway and Loads Suffered by Electric Vehicle Occupant during Side Collision. Energies2023, 16, 6892.
Olona, A.; Castejón, L.; Valladares, D. Influence of Traction Battery Arrangement on Risk of Thermal Runaway and Loads Suffered by Electric Vehicle Occupant during Side Collision. Energies 2023, 16, 6892.
Abstract
In current electric vehicles, the traction battery is intended to store energy. When designing this battery different parameters must be taken into account in order to arrange the battery/module/cells in the mechanically and thermally safest configuration. Moreover, the battery layout must have a correct dynamic behavior in possible collisions. In the present study, different battery configurations plus added energy absorbers are analyzed. In order to do that, an internal combustion vehicle modeled with finite elements is applied as the reference model. The structural behavior of the different battery configurations in the event of a side collision is examined. Firstly, the safest arrangement is stablished, both with respect to cabin intrusion and thermal runaway propagation. Secondly, the safest arrangement that guarantees the safety of the occupants in the event of a side collision is analyzed but using the MADYMO. This software includes experimentally validated dummies which allow have an insight in the stresses experienced by occupants. On the one hand, the analysis states that the battery pack inclusion in the vehicle increases the stiffness of the car floor, resulting in fewer intrusions in the passenger compartment. Therefore, a greater safety for the occupants is reached. On the other hand, none of the configurations analyzed has shown enough safety against the phenomenon of Thermal Runaway.
Keywords
Thermal Runaway; side collision; electric vehicle battery
Subject
Engineering, Automotive Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Luis Castejon
Commenter's Conflict of Interests: Author