Description du sujet de thèse

The PhD project is part of the UPBEAT project, which is part of PEPR (Priority Research Programs and Equipment) Batteries program, led by the CEA and CNRS. The UPBEAT project draws on the expertise of four CNRS and CEA laboratories to address the persistent challenges in the development of potassium-ion batteries (KIB). The work at IS2M will focus on the development of composite carbon materials (hard carbon/graphite/tin), their physico-chemical characterization using various techniques, and the evaluation of their performance in K-ion batteries. In-operando and post-mortem analysis techniques will be employed to gain deeper insight into the energy storage mechanisms and to identify the changes undergone by the electrodes during cycling. This approach will enable the optimization of device performance, particularly in terms of energy density, capacity, and lifespan.

Contexte de travail

The Mulhouse Materials Science Institute (IS2M) is a joint CNRS–University research unit located in Haute-Alsace, France (UMR 7361) and is part of Doctoral School 182 (Physics and Chemistry-Physics). Research at IS2M focuses on the development of innovative methods and processes for the synthesis, shaping, functionalization, and bio-functionalization of materials, as well as on the development of specific and/or tailor-made characterization techniques. The study of interaction mechanisms between surfaces and their environment, along with the establishment of property correlations at different scales, is closely linked to a wide range of applications, including energy, depollution, sensors, and catalysis The institute is equipped with a large array of high-performance instruments, complemented by eleven ISO 9001-certified technical platforms, enabling in-depth physico-chemical characterization of material properties. The doctoral thesis will be carried out within the “Carbon and Hybrid Materials” (CMH) team, which has recognized expertise in the fabrication of carbon materials with tailored properties, their fine characterization, and their use as electrodes in supercapacitors and batteries. The work will take place mainly at IS2M, with research stays also planned at ICGM to carry out complementary analyses. The institute is located on the university campus, easily accessible by public transport, and restauration available.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

Work in glove box and with metallic potassium