Ionic conduction in sepiolite
Abstract The solid state reaction between sepiolite and LiCl at 200°C gives intersalation compounds. The lithium composites obtained, x LiCl-SEP ( x =2, 4, 6 and 8), keep the sepiolite framework but the presence of the halide in its channels causes a gradual breakdown with the increase of temperature. At low temperatures, the polarizing character of Li + induces protonic conductivity in the zeolitic water system. The Cl − and Li + ions move through the channels above 170°C.