High-Purity T2/C110 Copper Busbar for EV Batteries - Reliable Suppliers from China Factory
Key Features For Copper Busbar
High Purity Copper Material
Made of T2/TU2/C11000 copper (≥99.99% Cu), conductivity up to ≥97% IACS, low resistivity 0.01724 Ω·mm²/m, minimizes energy loss and heat generation.
Superior Electrical & Thermal Performance
Excellent heat dissipation, effectively reduces temperature rise under high current; ensures long-term stability for EV battery packs and energy storage systems.
Custom CNC Machining
Precision cutting, bending, drilling, stamping; custom size, shape, hole position according to your battery pack layout.
Multiple Surface Treatment
Bare copper / tin plating (3–12μm) / nickel plating / silver plating; anti-oxidation, anti-corrosion, improves solderability.
Technical Specifications
| Item | Specification |
|---|---|
| Material | T2/TU2/C11000 High Purity Copper (≥99.99%) |
| Conductivity | ≥97% IACS (Hard State TMY) |
| Resistivity | 0.01724 Ω·mm²/m (@20℃) |
| Current Range | 30A – 2000A |
| Thickness | 2mm / 3mm / 4mm / 5mm / 6mm / 8mm / 10mm (Custom) |
| Width | 10mm – 200mm (Custom) |
| Length | Up to 6000mm (Custom) |
| Surface Treatment | Bare Copper / Tin Plated / Nickel Plated / Silver Plated |
| Insulation | PE/PVC/EVA Heat Shrink, PA12 Extrusion, Epoxy Coating |
| Insulation Rating | UL94 V-0, AC 1000V Dielectric Strength |
| Operating Temperature | -45℃ ~ +150℃ |
| Edge Type | Full Round Edge / Round Corner / Square Corner |
| Processing | CNC Cutting, Bending, Drilling, Stamping |
Applications
Electric Vehicle Battery Packs – Main connection between battery modules
EV & HEV High-Voltage Systems – Power distribution for motors and controllers
Energy Storage Systems (ESS) – Solar/wind storage battery connection
Charging Stations & Piles – High-current conductive connection
Industrial Power Equipment – UPS, inverters, high-current cabinets
Electric Forklifts & AGVs – Battery power connection
Why Choose Our Copper Busbar
10+ Years Experience
Strict Quality Control
Fast Delivery
24/7 Support
Professional Busbar Manufacturer – 10+ years experience in new energy copper busbars
Strict Quality Control – Conductivity test, temperature rise test, salt spray test (240H), insulation test
One-Stop Custom Service – From design, prototyping to mass production
Fast Delivery – Sample in 3–5 days, bulk order in 7–15 days
24/7 Technical Support – Professional engineers assist in design and selection
Frequently Asked Questions
Q
What copper material grade is used in your EV battery busbars?
We use T2, TU2, and C11000 grade high-purity copper with a copper content of ≥99.99%. This ensures conductivity of ≥97% IACS and a resistivity as low as 0.01724 Ω·mm²/m, which minimizes energy loss and heat generation in EV battery systems.
Q
Can you manufacture busbars with custom sizes, shapes, and hole positions?
Yes. We offer full CNC custom machining including cutting, bending, drilling, and stamping. Thickness ranges from 2mm to 10mm, width from 10mm to 200mm, and length up to 6000mm. All dimensions, hole positions, and bend angles can be customized to match your battery pack layout.
Q
What surface treatment options are available for your copper busbars?
We offer four surface treatment options: bare copper, tin plating (3–12μm), nickel plating, and silver plating. Each coating provides anti-oxidation and anti-corrosion protection, and improves solderability for different application environments and service life requirements.
Q
What is the operating temperature range of your copper busbars?
Our copper busbars are rated for an operating temperature range of -45℃ to +150℃, making them suitable for use in extreme environments including cold climates and high-load EV battery applications. The insulation materials (PE/PVC/EVA, PA12, Epoxy) are rated to UL94 V-0 with AC 1000V dielectric strength.
Q
How long does it take to receive a sample or bulk order?
Sample orders are typically completed and shipped within 3–5 business days. Bulk production orders are delivered within 7–15 business days depending on quantity and complexity. Rush orders may be accommodated — please contact our sales team for specific lead times.
Q
What quality tests do your copper busbars undergo before shipment?
Every batch undergoes a comprehensive quality inspection including conductivity testing, temperature rise testing under rated current, salt spray corrosion testing (240 hours), and high-voltage insulation testing. All products must meet our internal standards and client specifications before shipment.