Li2S All Solid State Battery Raw Materials Anhydrous High Purity Lithium Sulfide

Lithium Sulfide Li2S All-solid-state Battery Raw Material Anhydrous High-purity Lithium Sulfide Purity 99.9%

Product Overview​​

Lithium sulfide (Li₂S, purity ≥99.9%) is a critical precursor material for sulfide-based solid-state electrolytes (SSEs) and lithium-sulfur (Li-S) batteries. As a white-to-yellow crystalline powder with an anti-fluorite structure, it enables ultra-high ionic conductivity (>10⁻³ S/cm) in SSEs like Li₆PS₅Cl and Li₁₀GeP₂S₁₂, while serving as a pre-lithiated cathode in Li-S systems.

Key Specifications​

​Material Advantages​​

1. ​​Solid-State Battery Performance​​

   • Enables SSEs with ionic conductivity rivaling liquid electrolytes (10⁻²–10⁻³ S/cm).
   • Reduces interfacial impedance in sulfide-based SSEs (e.g., Li₆PS₅Cl) by 50% vs. oxide alternatives.

2. ​​Lithium-Sulfur Battery Applications​​

   • Theoretical energy density of 2,600 Wh/kg (vs. 300 Wh/kg for NMC).
   • Pre-lithiated design eliminates need for external lithium sources.

3. ​​Industrial Scalability​​

   • Compatible with roll-to-roll (R2R) production for SSE membranes (20–40 μm thickness).
   • Cost projected to drop to $200/kg by 2030 (currently ~$480/kg).

Applications​​

• ​​Solid-State Electrolytes​​: Li₆PS₅Cl, Li₃PS₄, and LGPS-type SSEs.
• ​​Li-S Battery Cathodes​​: Li₂S@C nanocomposites (500+ cycles achieved).
• ​​Research​​: Prototyping of 500+ Wh/kg all-solid-state cells.

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 .