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Youveim® Aluminum Foil Series for Lithium Ion Batteries

Views:     Added:2025-05-22

🔷 Youveim® Aluminum Foil Series

Youveim® offers a range of high-performance aluminum foil products widely used in lithium-ion batteries, supercapacitors, and other electrochemical devices as cathode current collectors.
Based on surface finish and carbon coating treatment, the aluminum foils are categorized into the following four types:


🔹 1. Single-Side Shiny Aluminum Foil

  • Features: One side shiny, one side matte; good flexibility and basic conductivity.

  • Applications: Ideal for winding or stacking-type battery structures; suitable for early-stage process development and cost-sensitive experiments.


🔹 2. Double-Side Shiny Aluminum Foil

  • Features: Both sides shiny with excellent surface flatness and high conductivity.

  • Applications: For cathode systems requiring high surface consistency; helps enhance energy density and cycle performance.


🔹 3. Single-Side Carbon-Coated Aluminum Foil

  • Features:

    • One side coated with conductive carbon, improving adhesion of active materials;

    • Reduces interface resistance and enhances electron pathways;

    • Back side remains bare aluminum.

  • Applications: Suitable for high-power batteries, solid-state batteries, and cathodes using high-resistance materials (e.g., high-nickel, LFP).


🔹 4. Double-Side Carbon-Coated Aluminum Foil

  • Features:

    • Conductive carbon coating on both sides;

    • High uniformity and consistent charge distribution.

  • Applications: Designed for double-sided electrodes; enhances conductivity and cycling stability. Suitable for high-rate discharge batteries, pouch cells, and multi-layer stacked electrodes.


📊 Youveim® Aluminum Foil Technical Specifications

ParameterUnitSingle-Side ShinyDouble-Side ShinySingle-Side Carbon-CoatedDouble-Side Carbon-Coated
Total Thicknessμm15–1615–1615–1615–16
Carbon Layer Thicknessμm1 (one side)1 + 1 (both sides)
Areal Densityg/m²41.8 ± 242 ± 2
Elongation%>1.5 (tested 2.8)>1.5 (tested 2.9)>1.5 (tested 2.83)>1.5 (tested 2.83)
Tensile StrengthN/mm²≥180 (tested 198–205)≥180 (tested 200–210)≥180 (tested 199.94)≥180 (tested 199.94)
Surface Energy (Dyne Value)dyne≥38 (tested 40–42)≥38 (tested 42–45)≥50≥40 (tested 55)
Surface FinishOne side shiny, one matteBoth sides shinyOne carbon-coated + one bareBoth sides carbon-coated
Wipe ResistanceCycles>200>200
Electrolyte Soak TestNo peelingNo peeling
Coating Widthmm230 ± 1230 ± 1
Total Foil Widthmm260 ± 1260 ± 1
Edge Marginmm15 ± 1 (each side)15 ± 1 (each side)
Coating Misalignmentmm≤1≤1
PackagingVacuum-packed / cartonVacuum-packed / cartonNo damage or moistureNo damage or moisture
StandardGB/T 1398-2010GB/T 1398-2010Enterprise StandardEnterprise Standard
Typical ApplicationsR&D, pilot-scale trialsIndustrial-grade cathodesHigh-resistance or high-power cathodesHigh-rate, pouch, or stacked cells
📦 Supply Format:
  • Roll format;

  • Standard lengths: 20 m, 50 m (customizable);

  • Foil thickness, width, and coating options can be tailored to customer needs.

📞 For detailed specifications, samples, or technical support, please contact the Youveim® sales or engineering team.


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