Electrochimica Acta, Vol.52, No.5, 2039-2044, 2007
Ion transport in small-molecule electrolytes based on LiI/3-hydroxypropionitrile with high salt contents
Abnormal "polymer-in-salt" conduction behavior is observed in a solid electrolyte composed of lithium iodide (LiI) and 3-hydroxypropionitrile (HPN). Based on comprehensive investigations by X-ray diffraction (XRD) and Raman and infrared spectroscopy, this abnormal conduction behavior is attributed to the formation of new ionic associates [Lim+In-]N-. . .equivalent to C (m > n) and the reinforced hydrogen bonding of (IHO)-H-. . . in the electrolyte at high LiI concentrations. (c) 2006 Elsevier Ltd. All rights reserved.
Keywords:"polymer-in-salt" electrolyte;LiI/3-hydroxypropionitrile;small-molecule electrolyte;hydrogen bonding;ionic associates