Plus d'info sur IFP Energies nouvelles - Mobilité et Systèmes
Stage Energétique Hauts-de-Seine entre avril et septembre 2023 5 mois
IFP Energies nouvelles (IFPEN) est un acteur majeur de la recherche et de la formation dans les domaines de l’énergie, du transport et de l’environnement. De la recherche à l’industrie, l’innovation technologique est au cœur de son action, articulée autour de quatre priorités stratégiques : Mobilité Durable, Energies Nouvelles, Climat / Environnement / Economie circulaire et Hydrocarbures Responsables.
Dans le cadre de la mission d’intérêt général confiée par les pouvoirs publics, IFPEN concentre ses efforts sur :
Context
Electric vehicle is a promising solution to de-carbonization and massive deployment is foreseen. However, thermal stability of battery materials for electric vehicles is found to decrease as they evolve towards higher energy density. Therefore, thermal runaway (TR) of batteries, often leading to combustion and explosion, has become one of the main safety concerns obstructing the massive deployment of electric vehicles.
During the process of battery thermal runaway, various gaseous components are formed by both exothermic decomposition reactions between battery materials and the evaporation of liquid electrolyte. These emitted gases, usually flammable and toxic, are responsible for the drastic events such as battery cell rupture, combustion, explosion, and flames, which impose grave danger to human lives.
Thanks to the many fundamental studies on the decomposition of battery materials, the scientific community has obtained a general understanding on the global reactions occurred during TR and their corresponding gaseous products. However, experimental measurements on the evolution of composition of the entire gas mixture with the progress of TR remains difficult, as current experimental setups are usually close-cell systems and could only measure the composition after TR. In addition, existing modeling studies on TR in the literature could not address the gas release. At best, some models could estimate only the amount of gas formed but could not model the gas composition.
This work aims to develop a multi-physics method to describe the interactions between the gas and condensed phase, and model the gas release behaviors during thermal runaway of Li-ion battery.
Methodology
What you could acquire after the internship
Level: Bac+5 or Bac+4
Duration and dates: 5 months between April and September 2023
Practical information: The internship will take place at IFP Energies Nouvelles in Rueil-Malmaison (west of Paris). The intern will be granted with a financial compensation (unless granted otherwise).
Interested ? Send a letter of motivation and a CV.
Stage Energétique Hauts-de-Seine entre aujourd'hui et avril 2023 de 5 à 6 mois