Challenges and Prospects of All-Solid-State Electrodes for Solid-State Lithium Batteries,Advanced Functional Materials

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Challenges and Prospects of All-Solid-State Electrodes for Solid-State Lithium Batteries
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-08-03 , DOI: 10.1002/adfm.202304371
Shaowen Dong _{1,

2} , Li Sheng ₂ , Li Wang ₂ , Jie Liang ₁ , Hao Zhang ₂ , Zonghai Chen ₃ , Hong Xu ₂ , Xiangming He ₂

Affiliation

In the development of all-solid-state lithium batteries (ASSLB), progress is made with solid-state electrolytes; however, challenges regarding compatibility and stability still exist with solid electrodes. These issues result in a low battery capacity and short cycle life, which limit the commercial application of ASSLBs. This review summarizes the recent research progress on solid-state electrodes in ASSLBs including the solid–solid interface phenomena such as the interface between electrode materials and electrolytes. The mechanical stability problems in solid electrodes, including fracture, brittleness, and deformation of electrode materials, are also discussed, and corresponding methods to measure the solid electrode stress are provided. In addition, strategies for mitigating stress-related issues are examined. Finally, the fabrication process of solid electrodes is introduced and their future developments, including the exploration of new electrode materials and the design of more intelligent electrode structures, are proposed.

中文翻译：

固态锂电池全固态电极的挑战与前景

在全固态锂电池（ASSLB）的开发中，固态电解质取得了进展；然而，固体电极仍然存在兼容性和稳定性方面的挑战。这些问题导致电池容量低、循环寿命短，限制了ASSLBs的商业应用。本文总结了ASSLB中固态电极的最新研究进展，包括固-固界面现象，例如电极材料和电解质之间的界面。还讨论了固体电极的机械稳定性问题，包括电极材料的断裂、脆性和变形，并提供了相应的固体电极应力测量方法。此外，还研究了缓解压力相关问题的策略。最后，介绍了固体电极的制备工艺，并提出了其未来的发展方向，包括新型电极材料的探索和更智能的电极结构的设计。

更新日期：2023-08-03

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