Synthesis of Li₇La₃Zr₂O₁₂ by Sol-Gel Method and the characterization

Abstract

A new garnet type lithium ion conductor, Li₇La₃Zr₂O₁₂ is expected as an electrolyte for 'All Solid State Battery'. We prepared Li₇La₃Zr₂O₁₂ at moderate temperature by Sol-Gel Method in order to suppress the volatilization of lithium at high temperature. Two types of structure are found, the tetragonal and cubic ones. The tetragonal form transforms to cubic one by absorbing CO₂ at lower temperature.