Amorphous electrolytes consisting of the lithium salts, Li[R-NSO 2 CF 3 ] were prepared and the attendant low ionic conductivities of the lithium salt mixtures (∼1×10 −6 S cm −1 at room temperature) are attributed to high glass transition temperatures. An example is the novel amorphous salt, Li[18-C-6NSO 2 CF 3 ] which produces an amorphous salt mixture with Li[N(SO 2 CF 3 ) 2 ] (LiTFSI).
