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  • Fabrication of high-density and translucent Al-containing garnet, Li7−xLa3Zr2−xTaxO12 (LLZTO) solid-state electrolyte by pressure filtration and sintering
Title: Fabrication of high-density and translucent Al-containing garnet, Li7−xLa3Zr2−xTaxO12 (LLZTO) solid-state electrolyte by pressure filtration and sintering
Garnet type LLZTO ceramic oxide is a promising solid-state electrolyte for use in Li-ion batteries because it has good chemical stability, adequate mechanical strength. However, lithium dendrite growth still needs to be addressed. The opacity of the solid electrolyte hinders in-situ investigation of dendrite growth. Therefore, semi-transparent LLZTO with high-density is needed. The traditional fabrication process for the garnet type LLZTO is cumbersome, and dense LLZTO disks with high transparency are difficult to fabricate. In this work, Al-LLZTO powder was made by solid-state reaction. A wet ceramic processing method, pressure filtration followed by sintering, was developed to make dense LLZTO with high ionic conductivity (1.47×10-4 S/cm) and adequate transmittance (17–23%) to visible light from 500 to 800 nm to observe and monitor dendrite growth.  more » « less
Award ID(s):
1742696
PAR ID:
10518501
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
Elsevier
Date Published:
Journal Name:
Solid State Ionics
Volume:
364
Issue:
C
ISSN:
0167-2738
Page Range / eLocation ID:
115640
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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