Mixed ionic and electronic conducting binders containing PEDOT:PSS and organic ionic plastic crystals toward carbon-free solid-state battery cathodes

PEDOT:PSS was combined with OIPCs (C 2 mpyrFSI and C 2 mpyrTFSI) which gave high ionic and electronic conductivities and when employed for the first time in a solid-state Li|LiFePO 4 cell as an OMIEC binder it showed an outstanding performance.