Montmorillonites are composed of aluminosilicate layers stacked one above the other, and the layer thickness is approximately 1 nm. In this work lithium modified montmorillonite (Li-MMT) was prepared and used as a lithium macro-anion salt in gel electrolytes. It was found that Li-MMT exhibited good compatibility with poly(ethylene glycol), DMSO and the ionic liquid, 1-ethyl-3-methylimidazolium dicyanamide (EMIdca), and a few of novel gel electrolytes based on Li-MMT were obtained. These gel electrolytes were investigated by X-ray powder diffraction, solid state NMR, conductivity measurements and cyclic voltammetry. High conductivities up to 10− 4 to 10− 3 S/cm at room temperature were observed with these macro-anion gel electrolytes. These gel materials were promising to be used as lithium conductive electrolytes in electrochemical devices, such as lithium batteries.
Field of Research
039999 Chemical Sciences not elsewhere classified
Socio Economic Objective
970103 Expanding Knowledge in the Chemical Sciences
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