Interface engineering enabling thin lithium metal electrodes down to 0.78 μm for garnet-type solid-state batteries.

ABSTRACT: Controllable engineering of thin lithium (Li) metal is essential for increasing the energy density of solid-state batteries and clarifying the interfacial evolution mechanisms of a lithium metal negative electrode. However, fabricating a thin lithium electrode faces significant challenges due to the fragility and high viscosity of Li metal. Herein, through facile treatment of Ta-doped Li₇La₃Zr₂O₁₂ (LLZTO) with trifluoromethanesulfonic acid, its surface Li₂CO₃ species is converted into a lithiophilic layer with LiCF₃SO₃ and LiF components. It enables the thickness control of Li metal negative electrodes, ranging from 0.78 μm to 30 μm. Quasi-solid-state lithium-metal battery with an optimized 7.54 μm-thic

SUBMITTER: Ji W 

PROVIDER: S-EPMC11568204 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature