This post-doctoral position is part of the « ELECTRIMER » project, which aims to reduce the environmental impact and to improve the safety of the future Li-metal batteries. In this contexte, the recruited researcher will develop a new self-healable and extrudable Gel Polymer Electrolyte (GPE). Biobased monomers of generations 2 and 3 (not in competition with the food industry) will be used to synthesize a new polymer, that will be swollen with green and safe solvents. A vitrimer chemistry will be integrated in the polymer structure, in order to improve the batterie durability, by introducing self-healing properties to the GPE. The reversible chemistru will also allow to improve the batterie recyclability.