Constructing a Superlithiophilic 3D Burr-Microsphere Interface on Garnet for High-Rate and Ultra-Stable Solid-State Li Batteries.

ABSTRACT: Garnet-type solid-state electrolyte (SSE) Li_6.5 La₃ Zr_1.5 Ta_0.5 O₁₂ attracts great interest due to its high ion conductivity and wide electrochemical window. But the huge interfacial resistance, Li dendrite growth, and low critical current density (CCD) block the practical applications. Herein, a superlithiophilic 3D burr-microsphere (BM) interface layer composed of ionic conductor LiF-LaF₃ is constructed in situ to achieve a high-rate and ultra-stable solid-state lithium metal battery. The 3D-BM interface layer with a large specific surface area shows a superlithiophilicity and its contact angle with molten Li is only 7° enabling the facile infiltration of molten Li. The assembled symmetrical cell reaches one of the highest

SUBMITTER: Chen B 

PROVIDER: S-EPMC10104650 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature