Lithium Lanthanum Zirconate Micron Powder (LLZO, Li7La3Zr2O12, ≥99.5, 0.3 -1 µm)

Technical Specification:

1. Material Composition:
   • Chemical Formula: Li₇La₃Zr₂O₁₂ (LLZO)
   • Purity: ≥99.5%
     • High-purity grade suitable for advanced energy storage applications.
2. Particle Properties:
   • Particle Size: 0.3–1 µm
     • Ultra-fine micron-sized particles ensure uniform distribution and enhance sintering properties.
   • Morphology: Irregular to sub-spherical particles
     • Promotes better packing density and ionic conductivity in solid electrolyte structures.
   • Density: Approximately 5.1–5.3 g/cm³
3. Crystal Structure:
   • Type: Garnet-type cubic structure
     • Provides structural stability and high ionic conductivity.
   • Phase: Stable cubic phase at room temperature without the need for doping.
4. Ionic Conductivity:
   • Room-Temperature Ionic Conductivity: Approximately 1×10⁻⁴ to 1×10⁻³ S/cm
     • Facilitates efficient lithium-ion transport for solid-state battery applications.
5. Thermal and Chemical Stability:
   • Thermal Stability: Stable up to ~1200°C
     • Suitable for high-temperature sintering and processing.
   • Chemical Stability:
     • Stable against lithium metal, allowing direct contact with lithium anodes.
     • Resistant to decomposition in typical battery operating environments.
6. Electrochemical Properties:
   • Electrochemical Stability Window: Up to 6 V (vs. Li/Li⁺)
     • Compatible with high-voltage cathode materials.
   • Mechanical Properties:
     • High hardness and stiffness, contributing to the structural integrity of solid-state batteries.

Applications:

1. Primary Applications:
   • Solid Electrolyte Material in All-Solid-State Lithium-Ion Batteries (ASSLIBs):
     • Serves as a solid electrolyte, replacing liquid electrolytes to enhance safety and energy density.
   • Composite Electrolytes:
     • Incorporated into polymer or ceramic matrices to improve ionic conductivity and mechanical strength.
2. Industries:
   • Energy Storage:
     • Advanced batteries for electric vehicles (EVs), portable electronics, and grid energy storage.
   • Aerospace and Defense:
     • Used in high-performance batteries where reliability and safety are critical.
   • Research and Development:
     • Essential in developing next-generation solid-state battery technologies.
3. Advantages for Applications:
   • High Ionic Conductivity:
     • Enhances charge/discharge rates and overall battery performance.
   • Chemical and Thermal Stability:
     • Allows for safe operation at a wide range of temperatures.
   • Safety Improvement:
     • Solid-state nature eliminates leakage and flammability risks associated with liquid electrolytes.
   • Compatibility with Lithium Metal Anodes:
     • Enables the use of lithium metal anodes for higher energy density without the formation of dendrites.
4. Specialized Uses:
   • High-Voltage Battery Systems:
     • Suitable for batteries utilizing high-voltage cathodes like LiCoO₂ and NMC materials.
   • Hybrid Solid Electrolytes:
     • Combined with other solid electrolytes to tailor ionic conductivity and mechanical properties.
   • Sensors and Electronic Devices:
     • Potential use in ionic conductors for sensors and other electronic applications.
5. Challenges and Solutions:
   • Processing Difficulties:
     • Achieving high density and ionic conductivity requires precise sintering techniques.
       • Solution: Utilize advanced methods like hot-press sintering or spark plasma sintering (SPS).
   • Moisture Sensitivity:
     • Reacts with moisture and CO₂ to form surface impurities like Li₂CO₃.
       • Solution: Handle in inert atmospheres and apply surface coatings or dopants to enhance stability.

Summary:

Lithium Lanthanum Zirconate Micron Powder (LLZO) is a cutting-edge material for solid-state lithium-ion batteries, offering high ionic conductivity, excellent chemical stability, and compatibility with lithium metal anodes. With ultra-fine particle sizes ranging from 0.3 to 1 µm and a high purity of ≥99.5%, LLZO is instrumental in advancing energy storage technologies that require enhanced safety, higher energy densities, and improved performance. Its garnet-type cubic structure and stable electrochemical properties make it a prime candidate for applications in electric vehicles, portable electronics, and large-scale energy storage systems.