Research Progress in Doping Modification of Garnet Structured Li7La3Zr2O12 Solid Electrolyte

被引：0
|
作者：
Xiao Y. [1 ,2 ,3 ,4 ]
Yang J. [1 ,3 ,4 ]
Wang N. [1 ,3 ,4 ]
Zhang X. [1 ,3 ,4 ]
Zhao H. [1 ,2 ,3 ,4 ]
Du L. [1 ,3 ,4 ]
Huang X. [1 ,3 ,4 ]
机构：
[1] National Engineering Research Center for Rare Earth, Grirem Advanced Materials Co.，Ltd., Beijing
[2] School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing
[3] General Research Institute for Nonferrous Metals, Beijing
[4] Rare Earth Functional Materials（Xiong'an）Innovation Center Co.，Ltd., Xiong'an
来源：
Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | 2023年 / 41卷 / 03期
关键词：
doping modification; ion conductivity; lithium ion battery; LLZO; research progress; solid electrolyte;
D O I：
10.11785/S1000-4343.20230310
中图分类号：
学科分类号：
摘要：
Lithium ion battery is the fastest developing chemical energy storage power supply at present. Compared with traditional liquid electrolyte lithium ion battery，solid lithium ion battery with solid electrolyte has higher energy density and better safety，which is the development direction of next generation lithium ion battery. Garnet structured Li7La3Zr2O12（LLZO）solid electrolyte has become one of the most promising solid electrolytes due to its high ionic conductivity，wide electrochemical window and excellent stability. This review starts from the development of lithium ion solid electrolytes，analyzes the structural characteristics，conductive mechanism and the root cause of its excellent performance of garnet structured LLZO electrolytes，further describes the bulk phase doping modification，second phase doping modification and other contents of LLZO electrolytes. The types，mechanisms and effects of doping modification are sorted out and summarized. Finally，the material design and preparation of doping modification of solid LLZO electrolyte in the future are analyzed and prospected，which provides a reference for promoting the research and development of high-performance solid-state lithium ion batteries. © 2023 Chinese Society of Rare Earths. All rights reserved.
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页码：520 / 540
页数：20
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