Towards the mechanism and high performance of solid-state Li batteries

TL;DR

This paper reviews recent advances in understanding and optimizing solid-state lithium batteries, focusing on mechanisms, interfaces, electrolytes, and characterization techniques to overcome current challenges and improve performance.

Contribution

It provides a comprehensive summary of strategies, techniques, and computational methods for advancing the development of safer, higher-performance SSLBs.

Findings

Insights into ionic conductivity improvements

Strategies for interface and electrolyte optimization

Advances in characterization and simulation methods

Abstract

Recently some critical problems and challenges have been exposed, hindering the development and practical application of SSLBs, such as the low room temperature ionic conductivity of solid electrolyte, the risk of short circuit caused by lithium dendrite piercing the electrolyte, etc. In order to address these challenges, it's essential to obtain in-depth insights into mechanisms and systematic optimization of SSLBs, including interfaces, electrolytes, and battery structures. Here, this minireview provides a brief summary, including strategies for electrode and electrolyte preparation, advanced battery characterization techniques, and the latest computational and simulation methods to advance understanding of kinetic or atomic scale mechanisms. The above contents will play an active role in promoting the development and practical application of safer and higher performance SSLBs.