Missions

The primary objective of this postdoctoral project is to evaluate the mechanical stresses induced during cycling in all-solid-state systems (based on argyrodite and polymer electrolytes), and to identify the main driven force (rate, ratio of element composing the electrode, etc…). The electrodes obtained will be characterized using several physicochemical techniques (dilatometry, acoustic emission, mechanical measurements such as indentation), electrochemical testing, and imaging techniques. These analyses aim to correlate electrochemical performance with electrode microstructure and mechanical behavior, both before and during cycling.

Activities

- Production of all-solid-state cells
- Characterisation of mechanical and morphological properties
- Electrochemical studies (cycling, ionic/electronic conductivity)
- Studies using optical microscopy and SEM
- Presentation of results
- Drafting of publications

Skills

The candidate should hold a PhD in materials science and related field. Knowledge of electrochemistry, mechanics and battery technologies would be considered a strong asset.

Work Context

This project is part of the PEPR “Li Metal Solid-State Batteries” program, known as LIMASSE, coordinated by the ANR under the France 2030 initiative. This highly ambitious project aims to develop all-solid-state batteries (inorganic, polymer-based, or hybrid) with lithium metal as the negative electrode. The project brings together 10 CNRS joint research units (UMRs) and CEA-LITEN, forming a strong scientific consortium to address the key challenges hindering the development of solid-state battery technologies.One of the strategies explored within LIMASSE is the use of sulfur as the positive electrode material, coupled with a solid electrolyte (Argyrodite or polymer), in the context of Li–S battery technology. It is within this framework that we are seeking a post-doctoral candidate to join the LEPMI laboratory in Grenoble, to work on the characterization of all-solid-state sulfur electrode in Li–S batteries.
This project will be carried out in close collaboration with all partners of the LIMASSE program, and more specifically with the LRCS (Amiens), indeed two PhD students (one at LEPMI, one at LRCS) are involved in Li-S technology in the LIMASSE project.

The position is located in a sector under the protection of scientific and technical potential (PPST), and therefore requires, in accordance with the regulations, that your arrival is authorized by the competent authority of the MESR.

Constraints and risks

no particular constraints