Topic 01-09 : Supercritical fluids, an alternative towards Li-ion battery (LIB) recycling

The objective of this project is to improve the current recycling procedure focusing, among others, on the electrolyte recovery or by opening an entirely new strategy for Li-ion battery (LIB) recycling.

In this context, this project aims to explore three aspects of the LIB recycling procedure:
(i) Delamination of the different parts of a battery (contacts, electrodes, carbon additives and separator).
(ii) Cleaning of the various delaminated parts of for direct reuse,
(iii) Regeneration of the two electrode materials. The negative electrode, which could potentially be reused as it after treatment and the positive electrode, which will require a post treatment step before reuse due to the irreversible consumption of lithium and structural modification during cycling.

This ambitious project will gather different expertise from LRCS in terms of battery manufacturing / operating principle (Mathieu MORCRETTE), ICMCB in terms of material recycling (Gilles PHILIPPOT and Cyril AYMONIER) and electrode material synthesis and characterization (Jacob OLCHOWKA and Laurence CROGUENNEC), and IPREM for surface characterizations of the aged and regenerated materials (Rémi DEDRYVERE).