Synthesis of nanostructured garnets

The garnet-type Li⁺ ion conductor Li₇La₃Zr₂O₁₂ (LLZO) is a promising solid electrolyte for all-solid-state lithium batteries. Numerous synthesis methods have been developed as alternatives to the conventional solid-state reaction first used to prepare LLZO. This chapter provides a comprehensive review of the research progress that has been made on synthetic methods to obtain nanostructured LLZO, with a focus on the synthesis of materials prepared using sol-gel/combustion, electrospinning, cellulose templating, spray pyrolysis, co-precipitation, and molten salt methods, as well as to highlight some unique properties of fine-grained and nanostructured LLZO.