LLZTO

CAS Number 1980850-22-3

Metal Oxides, Latest Products, Advanced Ceramic Materials, Battery Materials, Materials

A garnet solid-state electrolyte

for high performance solid-state batteries

Overview | Product Information | Related Products

LLZTO (CAS number 1980850-22-3) is tantalum-doped lithium lanthanum zirconium oxide, used as a solid-state electrolyte. LLZTO exhibits high ionic conductivity of 10^-4 – 10^-3 S/cm at room temperature, making it one of the most promising candidates for solid-state batteries. LLZTO is compatible with high voltage cathodes (e.g. high-Ni NMC) and lithium metal, due to its wide electrochemical window.

Incorporating LLZTO into a lithium iron phosphate (LFP) cathode significantly enhances the electrochemical performance. Galvanostatic charge−discharge and cyclic voltammetry profiles confirm reduced polarization and voltage hysteresis, consistent with improved ionic transport and lower interfacial resistance. The cathode composite maintains stable operation for over 200 cycles with 95% capacity retention and an average Coulombic efficiency of 99.6%.

High Ionic Conductivity

In the range of 10⁻⁴ to 10⁻³ S/cm

Low Cost Material

For affordable and effective battery R&D

Highly Stable Electrolyte

For safe solid-state
batteries

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Reliable delivery via tracked courier as standard

General Information

CAS Number	1980850-22-3
Chemical Formula	Li_6.4La₃Zr_1.4Ta_0.6O₁₂
Full Name	Lithium lanthanum zirconium tantalum oxide
Molecular Weight	889.4 g/mol
Synonyms	Ta-LLZO, Ta-doped LLZO, tantalum-doped lithium lanthanum zirconate
Classification or Family	Lithium-ion battery, solid-state battery, solid-state electrolyte

Product Details

Ionic Conductivity	≤ 10^-3 S/cm (25℃)
Particle Size	0.5 ± 0.05 µm (D50)
pH	≤ 12.50
Specific Surface Area	15 ± 3 m²/g
Appearance	White powder

MSDS Documentation

LLZTO MSDS Sheet

References

Garnet-type solid-state fast Li ion conductors for Li batteries: critical review, V. Thangadurai et al., Chem. Soc. Rev., 43 (13), 4714–4727 (2014); DOI: 10.1039/c4cs00020j.
Enhanced electrochemical properties and optimized Li⁺ transmission pathways of PEO/LLZTO-based composite electrolytes modified by supramolecular combination, Z. Lu et al., Energy Environ. Mater., 7, e12498 (2024); DOI: 10.1002/eem2.12498.
LiFePO₄/nano-LLZTO composite cathodes for enhanced performance of solid-state lithium batteries, J. Kumchompoo et al., ACS Appl. Mater. Interfaces, 18, 13848–13860 (2026); DOI: 10.1021/acsami.5c25967.

High-energy and durable lithium metal batteries using garnet-type solid electrolytes with tailored lithium-metal compatibility, S. Kim et al., Nat. Commun., 13, 1883 (2022); DOI: 10.1038/s41467-022-29531-x.
An electron-blocking interface for garnet based quasi-solid-state lithium-metal batteries to improve lifespan, Nat. Commun., 15, 5325 (2024); DOI: 10.1038/s41467-024-49715-x.

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