Fig. 2: Characterization of ion clusters in the electrolytes.

a Relationship between ΔESP of the diluent and the cluster size of an ion-pair. b Electrostatic potential map of various diluents of interest. Atom types: carbon (dark gray), hydrogen (white), silicon (blue-gray), fluorine (light blue). c Relative compositions of ion-pair states in the electrolytes. d 7Li nuclear magnetic resonance (NMR) spectra of the electrolytes. e Small-angle X-ray scattering (SAXS) spectra of the electrolytes. f Ionic conductivities of the electrolytes.