Preparation of lithium ion conductive Li₇La₃Zr₂O₁₂ thin films by a solution process

Abstract

Thin films of garnet-type Li₇La₃Zr₂O₁₂ (LLZ) were prepared for the application of all-solid-state thin film lithium batteries. Thin films were prepared by a dip-coating process using a precursor sol from Zr-alkoxide and Li and La nitrates. The thin film of polycrystalline cubic LLZ with a thickness of about 800 nm was obtained after sintering at 900 degree with Li₂CO₃ powder.