Coated Nickel Cobalt Manganese NCM811 Coating Material Lithium Niobate Single Crystal 811

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​​Model:NCM811
 ​​​​Appearance​​:Blue-gray powder
 ​​​​Particle Size (D50)​:3.535 μm ​​​​Specific Surface Area​:0.62 m²/g
 ​​​​Tap Density​​:2.04 g/cm³
 Moisture Content​:450.4 ppm
 ​​​​pH​:11.52
 MOQ: 10g
 Leading time: 5-7 working days

SKU: NCM811 Category:

Solid Electrolyte Coated Nickel Cobalt Manganese NCM811 Coating Material Lithium Niobate Single Crystal 811 Battery Material

Product Overview​​

Xwell’s solid-state electrolyte-coated single-crystal NCM811 is a high-performance cathode material featuring lithium niobate surface modification. The blue-gray powder (3.535 μm D50) delivers 205.1 mAh/g initial discharge capacity at 0.1C with 89.1% efficiency, specifically optimized for all-solid-state battery research and development.

Key Specifications​​

​​Property​​ ​​Value​​ ​​Test Method​​
​​Appearance​​ Blue-gray powder Visual inspection
​​Particle Size (D50)​​ 3.535 μm ICP
​​Specific Surface Area​​ 0.62 m²/g BET
​​Tap Density​​ 2.04 g/cm³ Tap density analyzer
​​Moisture Content​​ 450.4 ppm Karl Fischer coulometry
​​pH​​ 11.52 pH meter
​​0.1C Discharge Capacity​​ 205.1 mAh/g 0.1C (4.3-3.0V)
​​Initial Efficiency​​ 89.1% 0.1C cycling

Material Advantages​​

  1. ​​Surface Engineering​​
    • Lithium niobate coating enhances interfacial stability with sulfide electrolytes
    • Reduces side reactions by 40% vs. uncoated NCM811
  2. ​​Electrochemical Performance​​
    • Maintains >190 mAh/g at 1C rate (solid-state configuration)
    • Minimal gas generation (<0.5 mL/g after 100 cycles)
  3. ​​Manufacturing Compatibility​​
    • Suitable for dry electrode processing (≤30% RH required)
    • Enables direct cold pressing at 300 MPa

​​Packaging & Storage​​

​​Attribute​​ ​​Specification​​
​​Packaging​​ Double-layer:
• Inner: Al-plastic vacuum bag
• Outer: PE protective bag
​​Storage​​ Sealed, dry environment (<30% RH)
Temperature: 15-25°C
​​Shelf Life​​ 6 months in original packaging

Handling Recommendations​​

  1. ​​Material Preparation​​
    • Bake cathode sheets at 85°C for 4h before use
    • Perform all processing in dry room (≤0.1% H₂O)
  2. ​​Electrolyte Pairing​​
    • Recommended electrolyte: KLD-1230C ternary formula
    • Coin cell assembly under <0.1 ppm O₂
  3. ​​Safety​​
    • Hygroscopic material – minimize air exposure
    • Use vacuum-sealed transfer containers

Note: Custom coating thickness (2-10nm) and doping options available for research purposes.