Graphite Anode Sheet (Aqueous System, Coated Copper Foil)

Graphite Anode Sheet (Aqueous System, Single/Double-Sided Coated Copper Foil)
Application: Anode Material for Lithium-ion Batteries (Compatible with KJ Group Cathode Sheets)
Product Overview: This product features a Graphite coating on a copper current collector, processed with calendering. It is designed for high-performance lithium-ion battery research.

Key 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 (Calendered)
Total Thickness: 50 – 70 um
Current Collector Thickness: 9 um
Coating Areal Density: 6.3 ± 0.2 mg/cm^2 (Per Side Reference)
Current Collector Areal Density: 8.7 mg/cm^2
Active Material Mass Percentage: 93.2% (Subject to actual product label)
Compaction Density: 1.2 ± 0.1 g/cm^3
Specific Capacity: 340 mAh/g
Working Voltage Range: 0.005 V – 2.5 V
Packaging Unit: 5 sheets/pack

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

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

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

4. Coin Cell Assembly:
– Recommended Equipment: Single-Station Glove Box (e.g., VGB-10-I) and Hydraulic Coin Cell Crimper (e.g., 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 (e.g., 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 strictly sealed container (e.g., glove box or 60deg C drying oven).
– Shelf Life After Opening: To ensure optimal performance, use within one week of opening the sealed package.