Missions

At CNRS, in the CEMHTI laboratory (Conditions Extrêmes et Matériaux : Haute Température et Irradiation) in Orléans, the MATRMAG team - "Materials and Magnetic Resonance" of the CEMHTI-CNRS laboratory (UPR 3079) is recruiting a researcher.

As part of the European project ULTRABAT (BATTERY2030+), you will be responsible for modeling the NMR parameters of lithium ions in and at the interface of battery cathode materials.

The ULTRABAT project focuses on the transfer of ionic and electronic charges at the interface of materials, which are the cause of many limitations and degradation processes in batteries. The goal is to characterize the state of the interface, the mobility of lithium and electronic charges at this level, using materials with controlled morphology and surface state, through isotopic exchange techniques and/or homo/heteronuclear correlations. This study will be conducted in collaboration with specialists in microscopy, RX and optical methods, and modeling (DFT/molecular dynamics).

Activities

- Modeling the NMR parameters of selected lithium battery cathode materials within the ULTRABAT project.
- Modeling the interface and local NMR parameters in collaboration with the modeling group at DTU (Denmark) and IMN (Nantes, France).
- Conducting NMR experiments on the studied materials if necessary.
- Processing and interpreting data.
- Publishing results and participating in conferences.
- Writing reports, technical documents, and scientific publications.

Skills

- Modeling of materials using DFT and calculation of NMR parameters.
- Experience in experimental NMR.
- Basic knowledge of electrochemistry, magnetic and electronic properties, and solid-state chemistry.
- Proficiency in the necessary computer tools for operating equipment and processing and analyzing data.
- Adherence to health and safety regulations in the field.

Work Context

CEMHTI is a CNRS laboratory (approximately 100 people) and hosts an NMR platform with 6 spectrometers (from 200 to 850 MHz) and a variety of MAS probes (from 7 to 0.7 mm) or static probes for imaging or diffusion, belonging to the national platforms INFRANALYTICS or RS2E.

The European project ULTRABAT (5 M€) brings together a consortium including DTU (Denmark), Eu-XFEL (Germany), CNRS, and Collège de France, and is part of the European initiative BATTERY 2030+. The contract is renewable up to 30 months.

The researcher will be based at the high-temperature site of the laboratory, joining the "Materials and Magnetic Resonance" team.

Application deadline: 29/09/2025

Constraints and risks

Participation in events organized by the ULTRABAT consortium (biannual meetings) and in the production of deliverables for the European project.