Safe Solid-State Supercapacitors using Dynamic Ion Gels from Poly(Ionic Liquids) – DISAFECAP

DISAFECAP is a Franco-Luxemburgish project addressing a key unmet need for safe, high performance, flexible solid-state supercapacitors (SCs). We hypothesize that such outcome may be realized through creation of a new family of polymer materials termed dynamic ion gels (DIGs) and produced through the simultaneous coacervation of complementary poly(ionic liquids) (PILs) and charged silica nanoparticles with in situ generation of high performance ionic liquids, and ionic crosslinking to form robust, self-healing polymer networks. DIGs alone will act as SC separators, while reduced graphene oxide loaded with DIGs or PILs will serve as electrodes, thus ensuring efficient charge transfer and mechanical stability of the trilayer SC. The fundamental knowledge on DIG formulation and properties will enable the design and production of new polymeric materials and devices with unprecedented levels of mechanical and electrochemical performance.