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
-
Surface Engineering
- Lithium niobate coating enhances interfacial stability with sulfide electrolytes
- Reduces side reactions by 40% vs. uncoated NCM811
-
Electrochemical Performance
- Maintains >190 mAh/g at 1C rate (solid-state configuration)
- Minimal gas generation (<0.5 mL/g after 100 cycles)
-
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
-
Material Preparation
- Bake cathode sheets at 85°C for 4h before use
- Perform all processing in dry room (≤0.1% H₂O)
-
Electrolyte Pairing
- Recommended electrolyte: KLD-1230C ternary formula
- Coin cell assembly under <0.1 ppm O₂
-
Safety
- Hygroscopic material - minimize air exposure
- Use vacuum-sealed transfer containers
Note: Custom coating thickness (2-10nm) and doping options available for research purposes.
