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Home   /   Post Doctorat   /   Synthesis of glassy gels for application as fluorine-free electrolyte

Synthesis of glassy gels for application as fluorine-free electrolyte

Condensed matter physics, chemistry & nanosciences Physical chemistry and electrochemistry Ultra-divided matter, Physical sciences for materials

Abstract

Ionic liquid-swollen polymeric glassy gels were developed in 2024. The ionic liquids increase the flexibility and strength of the material and enable the reorganization of polymer chains under stress through several mechanisms: increase in free volume, plasticization, ionic interactions, and introduction of partial mobility within the polymer network. This makes the material highly resistant, deformable, and self-healing. The postdoctoral fellow will aim to synthesize new acrylic and vinyl glassy gel materials using a solvent-free one-pot approach. Different formulation parameters will be explored, such as the nature of the ionic liquid and the monomers of the polymer network, the ratio between these two components, and the crosslinking rate. Once the first glassy gels are obtained, the application of these glassy gels as electrolytes will be explored by adding lithium salts to the initial polymerizable formulation. The electrochemical performances of the electrolytes (conductivity, transport number, stability on Li metal, electrochemical stability window) will be evaluated in order to select the best candidate for integration into a full system (functional cell).

Laboratory

Département des Technologies des NanoMatériaux (LITEN)
Service Architecture 3D
Laboratoire de Formulation des Matériaux
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