Progress and perspectives on halide lithium conductors for all-solid-state lithium batteries

By Xiaona Li, Jianwen Liang, Xiaofei Yang, Keegan Adair, Changhong Wang, Feipeng Zhao, Xueliang Sun. 2020

302 citations recorded by the source corpus.

Halide solid-state electrolytes (SSEs) with high room-temperature ionic conductivity (>10−3 S cm−1), wide electrochemical windows, and good compatibility toward oxide cathode materials have achieved impressive progress and attracted significant attention for application in all-solid-state lithium batteries (ASSLBs). This review presents an overview of halide SSEs, including their development, structure, ionic conductivity, chemical stability, and current limitations. Firstly, we give a brief overview of the historical development of halide-based SSEs, followed by an introduction to the different types of halide SSEs. From a practical point of view, the synthesis methods, especially scalable liquid-phase synthesis, are intensively discussed. Then, the associated stability issues involving basic structure stability, air/humidity stability, and electrochemical stability (electrolyte/SSE interface and electrochemical stability window) are also discussed in detail. Comprehensive coverage and thorough understanding of the properties of halide SSEs are provided and it is expected to help guide the development of future SSEs towards ASSLBs for energy storage applications.

Subfields: Electrical and Electronic Engineering, Inorganic Chemistry

View Paper: https://www.semanticscholar.org/paper/dc793271df5a2803523a322b4e987ab49d47769e

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In Electrical and Electronic Engineering

Citations in the corpus

Progress in thermal stability of all‐solid‐state‐Li‐ion‐batteries (2021, background): “Halide SEs have been studied as solid electrolytes since the 1930s, with low ionic conductivities, but good air stability, high electrochemical stability, and aqueous-phasescalable preparation possibility.(98) For example, the ionic conductivity of Li3InCl6 synthesized in aqueous phase is as high as”