A relaxor ferroelectric polymer with an ultrahigh dielectric constant largely promotes the dissociation of lithium salts to achieve high ionic conductivity

A unique relaxor ferroelectric P(VDF-TrFE-CTFE) is investigated as a matrix of SPEs. The P(VDF-TrFE-CTFE) with ultrahigh ε r promotes the dissociation of LiTFSI to greatly enhance the ionic conductivity and the transference number of lithium ions.