Specifications
Brand Name :
XWELL
Model Number :
Li2S
Certification :
CE
Place of Origin :
CHINA
MOQ :
100g
Payment Terms :
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability :
1 t/month
Delivery Time :
5-7 days
Packaging Details :
Plastic package
Model :
Li2S
Test Standard​ :
GB/T 11064
​​Purity​ :
≥99.9% (4N grade)
​Crystal Structure​ :
Cubic (anti-fluorite)
Melting Point​ :
938°C
​​Density​ :
1.66 g/cm³
​​Particle Size​ :
D50 ≤5 μm (customizable)
​​Moisture Sensitivity​ :
<0.1 ppm H₂O (Ar-sealed)
Price :
1-1000USD/Negotiable
Description

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​

​Parameter​ ​Standard​ ​Result (ppm)​
​Test Standard​ GB/T 11064 -
​Test Items​
Sodium (Na) - 34.24
Calcium (Ca) - 30.24
Magnesium (Mg) - 4.55
Iron (Fe) - 3.54
Aluminum (Al) - 4.22
Copper (Cu) - 2.89
Lead (Pb) - 1.09
Zinc (Zn) - ND (Not Detected)
Nickel (Ni) - 3.32
Manganese (Mn) - 1.34
Potassium (K) - 4.01
Cadmium (Cd) - 8.39
Chromium (Cr) - 9.6
Phosphorus (P) - 9.0
Silicon (Si) - ND (Not Detected)

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

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Brand Name :
XWELL
Model Number :
Li2S
Certification :
CE
Place of Origin :
CHINA
MOQ :
100g
Payment Terms :
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Contact Supplier
Li2S All Solid State Battery Raw Materials Anhydrous High Purity Lithium Sulfide

GUANGDONG XWELL TECHNOLOGY CO., LTD.

Verified Supplier
1 Years
guangzhou
Since 2016
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Total Annual :
3000000-5000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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