LLZTO Solid Electrolyte Tantalum Doped Lithium Lanthanum Zirconium Oxygen Li6.5La3Zr1.5Ta0.5O12

LLZTO Tantalum-doped Lithium Lanthanum Zirconium Oxygen Solid Electrolyte Sheet Li6.5La3Zr1.5Ta0.5O12 Battery Material

Material Overview​​

LLZTO (Li₆.₅La₃Zr₁.₅Ta₀.₅O₁₂) is a cubic-phase garnet-type oxide solid electrolyte with superior ionic conductivity ($1.68\times 10^{-3}$ S/cm at 25°C) and exceptional electrochemical stability (0–5 V vs. Li⁺/Li). Its Ta doping stabilizes the cubic structure while suppressing lithium dendrite growth, making it ideal for lithium-metal batteries.

​​Key Properties​​

​​Performance Highlights​​

1. ​​Interface Engineering​​

   • Forms stable SEI with Li metal (critical current density: 4.2 mA/cm²)
   • Low interfacial resistance (<10 Ω·cm² with Sn:SnF₂ coating)

2. ​​Mechanical Robustness​​

   • Vickers hardness: 8–10 GPa
   • Withstands >300 MPa assembly pressure

3. ​​Battery Integration​​

   • Compatible with NMC811 cathodes (181 mAh/g initial capacity)
   • Stable cycling >3000 cycles (0.1C rate)

​​Applications​​

• ​​All-Solid-State Lithium Batteries​​ (ASSLBs)
• ​​Lithium-Sulfur/Lithium-Air Batteries​​
• ​​Hybrid Solid-Liquid Electrolyte Systems​​

​​Handling Notes​​

• ​​Storage​​: Argon glovebox (O₂/H₂O <0.1 ppm) to prevent Li₂CO₃ formation
• ​​Processing​​: Cold-press at 300–500 MPa for pellet formation

Note: Custom formulations (e.g., Ga-doped LLZTO) and thicknesses available for research-scale orders.

GUANGDONG XWELL TECHNOLOGY CO., LTD. is a high-tech enterprise specializing in intelligent equipment design, production and sales, providing mechanical engineering technology design and consulting services, electronic engineering design and consulting services. XWELL's core team was established in 2010 and officially established in June 2014. XWELL relies on South China University of Technology(SCUT), and the core team is composed of several doctors and masters from SCUT.

XWELL's main products are battery production line machines, such as spot welding machine, battery sorting machine, battery sticking machine, battery capacity grading machine, battery charge and discharge aging machine, battery general testing machine, and so on. The main application areas are new energy lithium batteries, automobiles and other industries, Especially in the fields of new energy, automotive wiring welding and other fields, XWELL has accumulated rich engineering experience and mastered a full set of core technologies, and can provide customers with a complete set of services from technology to equipment, helping customers to establish efficient and reliable production lines in the shortest time .