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Low Resistance High Current Flexible Copper Busbar | Laminated Copper Foil Connector

Our low resistance high current flexible copper busbar is engineered by laminating multiple layers of 99.99% high-purity copper foil, with terminals integrated via diffusion welding technology. Designed for high-current power transmission, it delivers ultra-low resistance, minimal power loss, and superior flexibility.

Full Customization: Custom size, thickness, hole position, shape, and insulation sleeve (PVC/Silicone/EVA) per drawings/samples.

    Low Resistance High Current Flexible Copper Busbar | Laminated Copper Foil Connector

    Technical Specifications

    Item Specification
    Material 99.99% High Purity Oxygen-free Copper (T2)
    Single Foil Thickness 0.1mm / 0.15mm / 0.2mm (custom 0.05–0.5mm)
    Number of Layers 10–200+ layers
    Cross-Section Area 1.5–5000 mm²
    Surface Treatment Bare Copper / Tin Plated / Silver Plated / Nickel Plated
    Rated Current 300A–10,000A (customized)
    Insulation Material PVC / Silicone Rubber / EVA Heat Shrink (UL94-V0)
    Working Temperature -40°C ~ +180°C
    Certification RoHS, REACH, (optional)

    Application:

    • Electric Vehicle (EV) Battery Packs & Modules
    • Energy Storage Systems (ESS) & Battery Cabinets
    • UPS & Industrial Power Cabinets
    • High/Low Voltage Switchgear & Distribution Panels
    • Solar/Wind Power Inverters & Converters
    • Railway & Transit Power Systems
    • Data Center Power Distribution

    Production Process

    Raw High-Purity Copper Foil → Precision Cutting → Laminating & Pressing → Terminal Diffusion Welding → Surface Plating (Tin/Silver/Nickel) → Insulation Sleeving → Strict Quality Inspection → Finished Products
    Packaging
    • Inner: Anti-static PE plastic bag (dustproof, moisture-proof)
    • Outer: Standard export carton; wooden box for heavy/large products
    • All products are well-packed to avoid extrusion, rust, and damage during long-distance sea/air freight.
    Shipping
    • Sample order: 3–7 days
    • Bulk order: 7–15 days
    • Shipping methods: Express (DHL/FedEx), Air freight, Sea freight (FOB/CIF/CFR)