Effect of LiOH on Tantalum Doped Li7La3Zr2O12 Garnet Solid Electrolyte

被引：0
|
作者：
Song J. [1 ]
Zhang H. [1 ]
Xue L. [1 ]
Zhang W. [1 ]
Yan Y. [1 ]
机构：
[1] State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong Universtiy of Scienc and Technology, Wuhan
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2022年 / 50卷 / 03期
关键词：
Garnet-type; Lithium ion conduction; Lithium lanthanum zirconium oxides; Solid state electrolyte; Solid state reaction;
D O I：
10.14062/j.issn.0454-5648.20210246
中图分类号：
学科分类号：
摘要：
Tantalum (Ta) doped Li7La3Zr2O12 (Ta-LLZO) ceramics were prepared via conventional solid-state reaction. LiOH was used as a lithium source and a sintering additive for ceramics. The effect of LiOH on the microstructure and ionic conductivity of Ta-LLZO ceramics was investigated. The results show that LiOH as a lithium source can promote the formation of cubic Ta-LLZO,and LiOH as a sintering additive can effectively improve the densification of ceramics. The dense cubic garnet Ta-LLZO ceramics were obtained by sintering at 1 200 ℃ for 5 h. When the amount of the sintering additive is 6% (in mass fraction), the ionic conductivity of ceramics reaches 6.23×10-4 S•cm-1. It is indicated that Li7La3Zr2O12 prepared via solid-state reaction has a great potential in the application of all-solid-state lithium ion batteries. © 2022, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：769 / 774
页数：5
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