Investigation on varying aluminum doping concentrations and sintering temperatures on the synthesis of garnet li₇la₃zr₂o₁₂ solid electrolyte via modified pechini method

Creator

Benjamin Jose Alfaro, University of the Philippines Los Banos
Rinlee Butch Cervera, University of the Philippines Diliman

Abstract

© 2019 Trans Tech Publications, Switzerland. Solid electrolytes such as lithium lanthanum zirconate have shown a lot of promise in an all-solid-state Lithium-based battery since the discovery of its highly conductive cubic garnet structure. In this study, different concentrations of Al-doped Lithium Lanthanum Zirconate (Al-doped LLZ) having the formula of Li7-.3xAlxLa3Zr2O12 with x = 0.1,0.2, 0.3, were synthesized via modified Pechini method and the effect of sintering temperatures, 1150 and 1200oC, on the resulting properties were investigated. X-ray diffraction results have shown that cubic Al-doped LLZ can be obtained at a lower temperature using Pechini method. Significant effect to the conductivity on the different sintering temperatures was observed for the 0.1 Al-doped LLZ. With the different studied compositions synthesized via modified Pechini method, it was revealed that the 0.2 Al doped LLZ sintered either at 1150 or 1200oC showed the highest conductivity of about 1.4x10-4 S/cm.

Source or Periodical Title

Materials Science Forum

ISSN

2555476

Page

160-164

Document Type

Article

Subject

Al-doped LLZ, EIS, Pechini method, Solid electrolyte, Solid state battery

Recommended Citation

Alfaro, Benjamin Jose and Cervera, Rinlee Butch, "Investigation on varying aluminum doping concentrations and sintering temperatures on the synthesis of garnet li₇la₃zr₂o₁₂ solid electrolyte via modified pechini method" (2021). Journal Article. 871.
https://www.ukdr.uplb.edu.ph/journal-articles/871