Zinc-ion batteries have attracted a significant attention as competitive candidates for flexible devices owing to the high volumetric capacity of the zinc (Zn) metal and its facile fabrication process. In this context, the excellent thermal stability, fire resistance, and attractive mechanical properties of polyphosphonates, make them ideal candidates for their use as polymer electrolytes. However, their use in Zn batteries has been poorly explored. This master internship project, and in the longer term, that of the future thesis, aims to synthesize polyphosphonates by ring opening metathesis polymerization (ROMP) in high yield and controlled way, in order to develop flexible solid-state electrochemical cells with high ionic conductivity at ambient temperature, good mechanical properties and enhanced safety for Zn batteries.
This project will require the complementary expertise of two teams, one specializing in polymer synthesis and characterization (LCMT) and the other in the preparation and study of batteries (CRISMAT).