Synthesis and characterization of LATP solid electrolyte by solution method

Abstract

Recently, considerable attention has been paid to the study of solid electrolytes in lithium-ion batteries. Ion conductive ceramic material NASICON-type Li_1+xAl_xTi_2-x(PO₄)₃ (LATP) is a promising solid electrolyte for lithium-ion batteries due to its stability in air. Here we report the results of LATP synthesis using the solution method. It has been found that the ionic conductivity of LATP is largely influenced by the preparation method. Pure LATP was obtained with the grain size of 100-700 nm. Measured ionic conductivity of the prepared LATP was in order of 10^-5 S cm^-1 at room temperature. Its typical particle size is between 100 and 700 nm, and its relative density is 89.5 percent.