High conductive yttrium doped Li7La3Zr2O12 cubic lithium garnet

An attempt has been made in this work to increase the bulk and total conductivity of Li7La3Zr2O12 (LIZ) with partial substitution of trivalent Y for a tetravalent Zr using yttria-stabilized ZrO2 (3% YSZ) as reactant. The small doping of Y for Zr helps to increase the bulk and total conductivity to 9.56x 10(-4) and 8.10 x 10(-4) Scm(-1), respectively, at 25 degrees C. The presence of small amount of Y helped to get well sintered pellet relatively at lower temperature with lower sintering time compared to LIZ, which helps to improve the overall conductivity. (C) 2011 Elsevier B.V. All rights reserved.