Preparation of Carbon-Coated Aluminum Foil Slurry
Sep 14, 2026
1. The concept and application of carbon-coated aluminum foil slurry
Carbon-coated aluminum foil slurry is a composite material characterized by high electrical conductivity, excellent corrosion resistance, and superior adhesion properties. It is widely used in the manufacturing of battery electrode sheets for power applications, energy storage systems, and consumer electronics products.
2. Main components of carbon-coated aluminum foil slurry
The main components of carbon-coated aluminum foil slurry include the following:
Aluminum foil: As a conductive substrate, it provides excellent electrical conductivity.
Carbon materials – such as graphene and carbon nanotubes – enhance the conductivity and corrosion resistance of the slurry.
Adhesives: such as polyurethane resin, epoxy resin, etc., used to bond aluminum foil to carbon materials.
Solvents: e.g., NMP, acetone, etc., used to adjust the viscosity and flowability of the slurry.
Dispersants: e.g., polyacrylates, etc., to enhance the dispersion performance of carbon materials.
3. Carbon-coated aluminum foil slurry formulation design
When formulating a carbon-coated aluminum foil slurry, it is essential to appropriately select the types and proportions of each component based on the specific application requirements. Generally, factors such as the thickness of the aluminum foil, the type and content of the carbon material, and the type and content of the binder all influence the performance of the slurry.
4. Preparation method for carbon-coated aluminum foil slurry
Mixing
Drying
Calendering
The preparation method for carbon-coated aluminum foil slurry typically involves the following steps:
Perform surface treatment on aluminum foil, such as oxide layer polish-off, to improve adhesion performance.
Mix the carbon materials and binder thoroughly to prepare a carbon paste.
Aluminum foil and carbon paste are combined using methods such as coating and rolling to form a carbon-coated aluminum foil slurry.
Dry and cure the slurry to enhance its performance.
5. Properties and application advantages of carbon-coated aluminum foil slurry
Slitting
Sampling
Adhesion Testing
Carbon-coated aluminum foil slurry offers the following properties and application advantages.
High electrical conductivity: Due to the inclusion of aluminum foil and carbon materials with high electrical conductivity, the carbon-coated aluminum foil slurry exhibits excellent electrical conductivity.
Good corrosion resistance: The addition of carbon materials enhances the slurry's corrosion resistance.
Outstanding bonding performance: The selection and formulation of the adhesive ensure that the carbon-coated aluminum foil slurry exhibits superior bonding performance.
Excellent processability: The carbon-coated aluminum foil slurry exhibits favorable fluidity and viscosity, facilitating processing steps such as coating and calendering.
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