High conductive yttrium doped Li 7La 3Zr 2O 12 cubic lithium garnet

Abstract

An attempt has been made in this work to increase the bulk and total conductivity of Li 7La 3Zr 2O 12 (LLZ) with partial substitution of trivalent Y for a tetravalent Zr using yttria-stabilized ZrO 2 (3% YSZ) as reactant. The small doping of Y for Zr helps to increase the bulk and total conductivity to 9.56 × 10 − 4 and 8.10 × 10 − 4 Scm − 1 , respectively, at 25 °C. The presence of small amount of Y helped to get well sintered pellet relatively at lower temperature with lower sintering time compared to LLZ, which helps to improve the overall conductivity.