PhD opportunities

(SUBJECT PROVIDED) Understanding of the microstructural evolution of the positive electrode and remediation pathways for the recycling of Lithium-ion batteries

Thesis proposal

Area of expertiseMécanique
Doctoral SchoolISMME - Ingénierie des Systèmes, Matériaux, Mécanique, Énergétique
SupervisorDUHAMEL Cécilie
Co-supervisorGIAUME Domitille
Research unitCentre des Matériaux
KeywordsLithium-ion batteries, chemical-mechanical-thermal couplings, numerical modeling, in-situ characterization
AbstractWith the electrification of vehicles and the massive use of portable digital devices, lithium-ion batteries are experiencing a major boom. As lithium resources are limited and under tension, it is essential to extend the life span and significantly increase the recyclability of these devices. This project aims on the one hand to model and simulate the coupling between the diffusion of lithium ions and the thermo-mechanical stresses in order to understand the origin of the appearance of cracks within the particles that make up the positive electrode. On the other hand, particles with controlled microstructures will be synthesized and experimentally tested within laboratory batteries subjected to electrochemical cycles. These microstructures will be characterized before and after cycling and remediation via surface electron microscopy and volume X-ray imaging techniques in order to feed the comparison between experiments and simulations.
ProfileEngineer and / or Master of Science - Good level of general and scientific culture. Good level of knowledge of French (B2 level in french is required) and English. (B2 level in english is required) Good analytical, synthesis, innovation and communication skills. Qualities of adaptability and creativity. Teaching skills. Motivation for research activity. Coherent professional project.

Prerequisite (specific skills for this thesis):




Applicants should supply the following :
• a detailed resume
• a copy of the identity card or passport
• a covering letter explaining the applicant's motivation for the position
• detailed exam results
• two references : the name and contact details of at least two people who could be contacted
• to provide an appreciation of the candidate
• Your notes of M1, M2
• level of English equivalent TOEIC
to be sent to recrutement_these@mat.mines-paristech.fr
FundingContrat de recherche