A remarkable improvement of ionic conduction in an environmental friendly glassy lithium electrolyte

Abstract

A new modified lithium-phosphate glass has been obtained by environmentally friendly components. This glass has provided a remarkable lithium ion solid electrolyte. Frequency-dependent electrical data of several lithium-phosphate glass compositions has been discussed in the framework of the electric modulus representation. The origin of the non-Debye behaviour of relaxations (distribution of relaxation times) has been discussed in terms of inter-ionic Coulombic interactions. Structural properties studied by X-ray diffraction, density and FTIR are correlated to the electrical behaviour of the glass. The material electrical behaviour suggests an exceptional candidate for being solid electrolyte in all solid state lithium ion batteries.