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Battery cell thermal runaway simulation and modelling for propagation studies at the module and packs scales.

Technological challenge: Energy efficiency for smart buildings, electrical mobility and industrial processes (learn more)

Department: Département Thermique Conversion et Hydrogène (LITEN)

Laboratory: Laboratoire des composants et systèmes thermiques

Start Date: 01-11-2022

Location: Grenoble

CEA Code: SL-DRT-22-0625

Contact: pierre.coste@cea.fr

The safety of battery packs used in electric vehicles is a major issue in a context of electric mobility development, particularly in the automotive and aeronautical sectors. In this context, CEA/LITEN is conducting thermal runaway tests on battery cells and possible propagation to neighbouring cells in order to assess the risks of propagation to the entire pack. CFD modelling and simulation approaches are being implemented to interpret the tests and contribute to future pack projects. Their development requires a better understanding of the phenomena involved: combustion, transport of solid particles and hot gases. The work proposed in the thesis is to develop this modelling and simulation approach, and thus to capitalise on the lessons learned from the tests carried out not only in the context of an experimental thesis conducted in parallel at CEA-LITEN but also in the context of other projects. The objective is to acquire tools capable of simulating the thermal runaway of a cell and the consequences on neighbouring cells, validated on tests.

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