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The carbon coated aluminum foil for lithium ion battery cathodes and supercapacitors. Double-side coating (1μm each), total thickness 18μm, surface resistivity <30Ω/25μm², aluminum foil purity >99.35%. Improves adhesion, reduces internal resistance, prevents short circuits.

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Description

Carbon Coated Aluminum Foil – Conductive Cathode Substrate for Li-Ion Batteries

Carbon coated aluminum foil is an advanced cathode substrate material specifically designed for lithium-ion batteries and supercapacitors. Unlike traditional bare aluminum foil, this innovative material features a thin carbon coating on both sides, significantly enhancing electrochemical performance and electrode integrity.

Key Advantages Over Traditional Aluminum Foil:

  • Superior Electrical Conductivity: The carbon coating reduces contact resistance between the current collector and active materials.
  • Low Internal Resistance: Enhances overall battery performance and rate capability.
  • Strong Mechanical Properties: Maintains excellent toughness and structural integrity.
  • Burr Prevention: Carbon coating helps avoid short circuits caused by aluminum foil burrs.
  • Improved Adhesion: Enhances bonding between electrode materials and the current collector.
  • Increased Discharge Capacity: Contributes to higher battery capacity and extended cycle life.
  • Corrosion Protection: Carbon layer provides protection against electrolyte corrosion.

Applications:

  • Lithium-ion battery cathodes (NMC, LCO, LFP, etc.)
  • Supercapacitor electrodes
  • Advanced energy storage research
  • High-rate battery applications
  • Long-life battery development

Technical Parameters

ParameterSpecification
ApplicationCathode of lithium ion battery, supercapacitor
Coating TypeDouble side coating
Coating Thickness (each side)1 μm
Coating Density0.5 g/m²
Surface Resistivity<30 Ω per 25 μm²
Aluminum Foil Purity>99.35%
Aluminum Foil Thickness16 μm
Aluminum Foil Width260 mm
Coating Width230 mm
Total Thickness (foil + coating)18 μm
CustomizationBulk customized products available

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OUR battery equipment's PROJECT
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Certificates:Integrated gas purifier system and PLC controller
used for keeping inert gases by recirculation

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