Carbon Coated Aluminium Foil for Supercapacitor

Carbon-coated aluminum foil leverages the exceptional conductivity and heat dissipation properties of carbon to deliver superior performance in energy storage applications. By significantly reducing the contact resistance between positive/negative electrode materials and current collectors, it enhances adhesion, increases thermal conductivity, and improves overall product stability. These advantages make it an ideal material for use in supercapacitors.

 

 

Our Carbon-Coated Aluminum Foil for Supercapacitors has gained strong market recognition among our customers due to its reliability and performance. Below are the detailed parameters for this product：

 

Key Parameters

• Base Material: High-purity aluminum (99.9% Al).
• Carbon Coating Thickness: 1-10 microns (customizable based on application requirements).
• Electrical Conductivity: ≥ 60% IACS (International Annealed Copper Standard).
• Tensile Strength: 100-300 MPa (depending on thickness and temper).
• Temperature Resistance: Stable performance up to 150°C (302°F).

Compared to traditional aluminum foil, carbon-coated aluminum foil offers superior electrical conductivity, lower internal resistance, and enhanced mechanical strength. Its excellent toughness also improves the adhesion of electrode materials, leading to increased discharge capacity and overall battery performance.

 

 

 

Base Material: High-purity aluminum (99.9% Al).

Carbon Coating Thickness: Typically 1-10 microns, depending on application requirements.

Electrical Conductivity: ≥ 60% IACS (International Annealed Copper Standard).

Tensile Strength: 100-300 MPa (depending on thickness and temper).

Temperature Resistance: Stable performance up to 150°C (302°F).

 

 

A1 layer

Etching layer

Carbon layer

Carbon foil, as a substrate for lithium-ion batteries, is mainly composed of a combination of a binder and a carbon layer. The excellent theoretical conductivity (106S/m) and thermal conductivity (5000w/m. k: X-Y plane) of carbon can effectively collect the electrical and thermal energy generated by active substances during charging and discharging processes.

 

 

• High Electrical Conductivity: Aluminum provides excellent electrical conductivity, ensuring efficient current transfer.
• Enhanced Surface Properties: The carbon coating improves surface adhesion, making it ideal for active material bonding in supercapacitors.
• Lightweight and Flexible: The foil is lightweight and can be easily shaped or formed for various applications.
• Thermal Conductivity: Effective heat dissipation for thermal management.
• Corrosion Resistance: The carbon layer adds a protective barrier, enhancing durability.

 

 

Thickness/Double Size (μm)	Unit Surface Density (g/m2)	Tensile (Kg/cm)	Bending Resistance	Dyne of Foil 56	Dyne of Carbon Layer 6	Adhesive Tape>8N/cm	Solvent Resistance (NMP,BAC)	Water Resistance
1	0.3~0.7	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
1	0.3~0.7	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass
1	0.3~0.7	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	3.2±0.3	70<	Pass	Pass	Pass	Pass	Pass
1	0.3~0.7	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass
2	0.6~1.4	4.5±0.3	85<	Pass	Pass	Pass	Pass	Pass

 

 

• Improved Supercapacitor Performance: Enhances the adhesion of active materials, leading to better efficiency and cycle life.
• Cost-Effective: Provides a balance of performance and affordability compared to other advanced materials.
• Versatility: Suitable for a wide range of applications, from energy storage to flexible electronics.
• Durability: Resists corrosion and maintains performance over time.

 

• Complex Manufacturing: The coating process requires precise control to ensure uniformity and performance.
• Cost: Higher cost compared to standard aluminum foil due to the additional carbon coating process.

 

 

 

 

 

 

• Carbon-coated aluminum foil is widely used in industries requiring high-performance materials. Common applications include:
• Supercapacitors: Used as a current collector, enhancing energy storage capacity and charge/discharge efficiency.
• Lithium-Ion Batteries: Improves battery performance and lifespan.
• Flexible Electronics: Suitable for flexible circuits and wearable devices.
• Energy Storage Systems: Used in advanced energy storage solutions for renewable energy systems.
• Electrochemical Sensors: Provides a stable and conductive surface for sensor applications.

 

 

Carbon-coated aluminum foil is an excellent choice for applications requiring high electrical conductivity, enhanced surface properties, and durability. Its unique combination of aluminum and carbon makes it ideal for advanced energy storage, flexible electronics, and electrochemical devices. Whether for supercapacitors, lithium-ion batteries, or flexible circuits, this material delivers consistent performance and reliability.

 

 

 

Q1: What info. should I let you know if i would like to get a quotation for the the Electrolytic copper foil?

A1: The material size (Thickness*Width*Length and total Qty). If possible, it would be more better to advise the application of the product

Then we can recommend the most suitable products with details for confirmation.

 

Q2:How long is your delivery time?

A2:Generally it is 5-10 days base on we have stock on hand. or 15-20 days if no inventory, then need check with our production team for lead time according to the quantity.

 

Q3: Do you provide samples ?

A3:Yes, if standard sizes sample is free but buyer need to pay freight cost.

 

Q4:What is your terms of payment ?

A4: Normal payment term is 30%TT, 70% before shipment get ready to ship

 

Q5: How do you guarantee the quality of the products?

A5: Each step of production and finished products will be carried out inspection by QC department before storing to the warehouse. NG products are not allowed in the completed goods warehouse.

 

 

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