Missions

The objective of this work is to electrically test all-solid-state battery components in order to identify technological choices enabling TRL4 maturity prototype cell assemblies to be achieved.

Activités

To characterize and evaluate the operability of the technological solutions chosen in the project, “single layer” cells will be produced, using laboratory equipment.
The components (solid electrolyte materials, electrode materials) will be electrically tested separately and then together within composite electrodes to study their intrinsic conduction properties and identify electronic/ionic limitations. Impedancemetric measurements will be especially implemented in order to have a deep understanding of transport phenomena at different scales.

Compétences

Battery materials, Solid state electrochemistry, Electrical measurements

Contexte de travail

The work is part of a project aimed at studying a disruptive technological innovation to replace liquid electrolyte batteries with solid electrolyte solutions. Solid electrolyte batteries are designed as “all-solid” solutions, identified as 4th generation (Gen 4). The solutions that will be developed in the project for generation 4b batteries will include NMx or LFPx cathodes, Lithium metal anodes (see "Lithium free", that is to say a negative electrode which does not include Lithium at the discharged state) or in pure silicon and solid electrolytes (based on polymeric or inorganic compounds, mainly from the sulphide family).
The position is located in a sector falling under the protection of scientific and technical potential (PPST) and therefore requires, in accordance with the regulations, that your arrival be authorized by the competent authority of the MESR

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

Use of glove box