Ionic conduction in PEO-perfluorosulphonimide divalent salt complexes

The complexes involving PEO and perfluorosulphonimide (TFSI) salts of divalent metals (lead, nickel and copper) have been studied. Encouraging results have been obtained with the TFSI anion as the conductivities are markedly higher than those involving the same cations with other anions. In addition, these complexes are generally entirely amorphous for compositions n ≤ 12 above room temperature. The plasticizing effect of the TFSI ion is again noticed here.