Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 8, Issue 48, Pages 25663-25686Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ta08472g
Keywords
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Funding
- Intellectual Property Special Funding Project of Zhongguancun National Intellectual Property System Demonstration Park [BJIPD2020-130511-111]
- Natural Science Foundation-the Joint Foundation of China [U1764255]
- Beijing Natural Science Foundation [L182023]
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Due to the use of liquid electrolytes containing flammable organic solvents, commercial lithium-ion batteries have potential safety issues. All-solid-state lithium batteries (ASSLBs) that utilize solid-state electrolytes (SSEs) are regarded as a secure, next-generation battery system. Significant efforts have been devoted toward developing ASSLBs, but the application of ASSLBs still needs to resolve some scientific and technical problems, such as SSE with high ionic conductivity and stability, technology to reduce interfacial resistance between the electrolyte and electrode, battery design, and large-scale manufacturing technology. The SSE plays a vital role in resolving the above problems and is one of the solutions to achieve the practical application of ASSLBs. Among the many types of SSEs investigated in the past years, Li argyrodite is considered the most promising because of its high ionic conductivity and mechanical properties, and has been investigated in great detail. This article aims to provide a comprehensive review of the research progress in the modification and synthesis of Li-argyrodite-based SSEs, as well as their effects on improvements in ionic conductivity, stability, and interfacial performance. Potential research directions in the development of Li-argyrodite-based SSEs that are commercially feasible in the future are also suggested.
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