NCM (Nickel Cobalt Manganese) Cathode Sheet

NCM (Nickel Cobalt Manganese) Cathode Sheet (Single/Double-Sided Coated Aluminum Foil)
Application: Cathode Material for Lithium-ion Batteries
Product Overview: The product has a Nickel Cobalt Manganese (NCM622) coating on an aluminum current collector, processed with calendering. It is designed for lithium-ion battery research.

Specifications (Single-Sided Reference):
Sheet Dimensions: 241 mm L x 200 mm W
Coated Area Dimensions: 241 mm L x 175 mm W (12.5 mm uncoated margin on each side)
Coating Type: Single-Sided / Double-Sided (Calendered)
Current Collector Thickness: 16 µm
Coating Areal Density: 11.0 ± 0.2 mg/cm² (Per Side Reference)
Current Collector Areal Density: 4.22 mg/cm²
Active Material Mass Percentage: 97.5% (Subject to actual product label)
Compaction Density: 2.9 ± 0.1 g/cm³
Specific Capacity: 170 mAh/g (0.1C Reference)
Working Voltage Range: 3.0 V – 4.3 V

Usage Guidelines & Experimental Reference:
1. Electrode Cutting:
– Recommended Equipment: Disc Cutter (for example, MSK-T10).
– Suggested Dimensions for Coin Cells: Diameter 12 mm or 14 mm.

2. Electrode Weighing & Calculation:
– Recommended Equipment: Precision Balance (for example, Sartorius BCE Series).
– Active Material Mass Calculation Formula:
Mass_active = (Mass_electrode_disc (mg) – Area_disc (cm²) x Density_current_collector (mg/cm²)) x Ratio_active_material

3. Electrode Drying (Baking):
– Recommended Equipment: Vacuum Drying Oven (for example, DZF-6050, 53L).
– Conditions: 60°C – 80°C for 2 – 4 hours under vacuum.

4. Coin Cell Assembly:
– Recommended Equipment: Single-Station Glove Box (for example, VGB-10-I) and Hydraulic Coin Cell Crimper (for example, MSK-110).
– Recommended Stacking Order (Negative to Positive Case):
Negative Case -> Lithium Chip -> Electrolyte -> Separator -> Electrolyte -> Electrode Disc -> Spacer -> Spring -> Positive Case.

5. Electrochemical Testing:
– Recommended Equipment: 8-Channel Battery Analyzer (for example, 5 V 10mA).
– Current Calculation Formula (Example for 0.1C):
Current (mA) = Active Material Mass (mg) x 0.001 x Nominal Specific Capacity (mAh/g) x 0.1

Storage & Handling:
– Moisture Sensitivity: The product is sensitive to moisture. Store in a sealed container (for example, glove box or 60°C drying oven).
– Shelf Life After Opening: Use within one week of opening the sealed package.