Affiliation:
1. Key Laboratory of Engineering Dielectric and Applications (Ministry of Education) School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin 150080 China
2. State Key Laboratory of Advanced Electromagnetic Engineering School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan 430074 China
3. Helmholtz Institute Ulm (HIU) Helmholtzstrasse 11 D‐89081 Ulm Germany
4. Karlsruhe Institute of Technology (KIT) P.O. Box 3640 D‐76021 Karlsruhe Germany
5. Sapienza University of Rome Chemistry Department P. Aldo Moro 5 Rome 00185 Italy
Abstract
AbstractSolid‐state batteries (SSBs) are under development as high‐priority technologies for safe and energy‐dense next‐generation electrochemical energy storage systems operating over a wide temperature range. Solid‐state electrolytes (SSEs) exhibit high thermal stability and, in some cases, the ability to prevent dendrite growth through a physical barrier, and compatibility with the “holy grail” metallic lithium. These unique advantages of SSEs have spurred significant research interests during the last decade. Garnet‐type SSEs, that is, Li7La3Zr2O12 (LLZO), are intensively investigated due to their high Li‐ion conductivity and exceptional chemical and electrochemical stability against lithium metal anodes. However, poor interfacial contact with cathode materials, undesirable lithium plating along grain boundaries, and moisture‐induced chemical degradation greatly hinder the practical implementation of LLZO‐based SSEs for SSBs. In this review, the recent advances in synthesis methods, modification strategies, corresponding mechanisms, and applications of garnet‐based SSEs in SSBs are critically summarized. Furthermore, a comprehensive evaluation of the challenges and development trends of LLZO‐based electrolytes in practical applications is presented to accelerate their development for high‐performance SSBs.
Funder
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Cited by
1 articles.
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