NCM811 Cathode Sheet - Battery Positive Aluminum Foil Coated with Ternary 811 Nickel-Cobalt-Manganese (Single/Double-sided Cathode Sheet)
Product Overview
NCM811 electrode sheet is a key cathode component for lithium-ion batteries, made of LiNi₀.₈Co₀.₁Mn₀.₁O₂. It features a layered structure with an 8:1:1 Ni-Co-Mn ratio, offering high energy density (over 280Wh/kg), long cycle life, and good rate performance, ideal for high-energy applications like electric vehicles.
Key Features
Ternary 811 Cathode Single-sided Electrode Sheet:
| Item | Parameter |
| Electrode Size | 241mm L * 200mm W |
| Coating Area Size | 241mm L * 175mm W (12.5mm margin on each side) |
| Coating Side | Single-side coating (calendered) |
| Current Collector Thickness | 16 μm |
| Coating Areal Density | 10.5 ± 0.20 mg/cm² |
| Calendering Density | 2.75 ± 0.1 g/cm³ |
| Current Collector Areal Density | 4.22 mg/cm² |
| Active Material Mass Ratio | 95% |
| Voltage Range | 3.0–4.3V |
| Reference Gravimetric Capacity | 190 mAh/g (0.1C) |
| Notes | 1. The mass ratio of electrode active material is subject to the actual label; the calculation formula for electrode active material is provided below. 2. After opening the electrode, keep it sealed (store in a glove box or 60°C oven). |
Ternary 811 Cathode Double-sided Electrode Sheet
| Item | Parameter |
| Electrode Size | 241mm L * 200mm W |
| Coating Area Size | 241mm L * 175mm W (12.5mm margin on each side) |
| Coating Side | Double-side coating |
| Substrate Thickness | 16 μm |
| Coating Areal Density | 21 ± 0.4 mg/cm² |
| Foil Areal Density | 4.22 mg/cm² |
| Calendering Density | 3.3 ± 0.1 g/cm³ |
| Active Material Mass Ratio | 95% |
| Reference Gravimetric Capacity | 190 mAh/g |
| Reference Voltage Range | 3.0–4.3V |
| Active Material Mass Calculation | Coating areal density * Active material ratio * Electrode size |
| Notes | After opening the electrode, keep it sealed (store in a 60°C oven or glove box). |
Reference for Electrode Sheet Usage
- Electrode Sheet Cutting
Equipment: MSK-T10 sheet cutter
Recommended size for coin cell electrode sheets: 12mm/14mm in diameter - Electrode Sheet Weighing
Equipment: Sartorius BCE series balance
Formula for active material calculation:
Active material mass = [(Electrode sheet mass (mg) - Disc area (cm²) * Current collector areal density (mg/cm²))] * Active material proportion - Electrode Sheet Drying
Equipment: DZF-6050(53L) vacuum drying oven
Temperature: 60–80°C
Time: 2–4 hours - Electrode Sheet Assembly
Equipment: VGB-10-I single-station glove box, MSK-110 small hydraulic coin cell sealing machine
Recommended battery assembly sequence:
Negative case → Lithium sheet → Electrolyte → Separator → Electrolyte → Electrode sheet → Gasket → Spring sheet → Positive case - Battery Testing
Equipment: 5V10mA8 channel battery tester
Steps: Calculate the active material mass, then input the corresponding current and voltage range.
Current calculation:
0.1C = 1C = (Active material mass (mg) * 0.001 * Nominal specific capacity (mAh/g)) * 0.1

Why Choose Our Product?
- Enhanced Battery Life: Reduces delamination risks during cycling
- Process Compatibility: Suitable for slurry coating, calendering, and stacking
- Quality Consistency: Strict ±1μm tolerance control for industrial-scale production