Rational material design of chemically inert oxide anode coating layers for lithium metal and all-solid-state batteries

초록

While many coating materials have been explored to address the compatibility issues between Li anodes and solid-state electrolytes, a fully tailored material has yet to be suggested. Herein, we systematically evaluated potential coating candidate material properties to establish effective guidelines for functional battery material discovery. By performing high-throughput screening with various methodologies, we identified promising coating candidates such as LiTbO2, and LiDyO2, which exhibit inhibition of Li dendrite growth, non-reactivity, lithiophilicity, and sufficient ionic conductivity. Additionally, instead of directly synthesizing the coating layer from commercialized binary precursors, we experimentally induced the coating layers LiTbO2 and LiDyO2 from the binaries within the cell and validated their potential as coatings. Our findings provide a systematic framework for discovering and developing new materials to enhance the performance, safety, and commercial viability of all solid-state batteries.

키워드