LLZO

Article summary

Lithium lanthanum zirconium oxide (LLZO, Li 7 La 3 Zr 2 O 12 ) or lithium lanthanum zirconate is a lithium-stuffed garnet material that is under investigation for its use in solid-state electrolytes in lithium-based battery technologies. LLZO has a high ionic conductivity and thermal and chemical stability against reactions with prospective electrode materials, mainly lithium metal, giving it an advantage for use as an electrolyte in solid-state batteries. LLZO exhibits favorable characteristics, including the accessibility of starting materials, cost-effectiveness, and straightforward preparation and densification processes. These attributes position this zirconium-containing lithium garnet as a promising solid electrolyte for all-solid-state lithium-ion rechargeable batteries. Moreover, LLZO demonstrates a notable total conductivity, surpassing most other solid lithium-ion conductors and many lithium garnets. The fact that the total and bulk conductivities are of the same order of magnitude distinguishes LLZO garnet-type oxide as particularly attractive when compared to other ceramic lithium-ion conductors. This suggests that LLZO, with its garnet-like structure, holds significant promise for enhancing the performance of solid-state lithium-ion rechargeable batteries.…

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