Press Welded Copper Foil Flexible Busbar
Press Welded Copper Foil Flexible Busbar
Product Overview:
Press Welded Copper Foil Flexible Busbar (also known as laminated copper foil flexible connector, copper busbar expansion joint) is a high‑current flexible conductive component. Multiple layers of T2 copper foil are stacked together, then both ends are processed by molecular diffusion pressure welding under high temperature & high pressure. Copper foils form integral metallurgical bonding at terminals, while the middle section keeps flexible for bending and displacement absorption.
It compensates thermal expansion, installation offset and mechanical vibration between power components, avoids rigid‑connection‑caused stress damage, guarantees stable high‑current transmission. Supports custom drawings / samples OEM & ODM service.
The Technical Specification For Copper Foil Flexible Busbar:
| Item | Specification |
|---|---|
| Material | T2 / TU2 Copper (C11000 / C10100), Cu ≥99.95% |
| Single Copper Foil Thickness | 0.05‑0.5 mm; Standard:0.1 mm |
| Cross‑section Area | 10 ~ 5000 mm² |
| Conductivity | ≥98% IACS |
| Surface Finish | Bare copper / Tin‑plated / Nickel‑plated / Silver‑plated |
| Insulation(Optional) | Heat‑shrink tube / PVC / Silicone rubber; Withstand voltage up to 4000V AC |
| Operating Temperature | ‑55℃ ~ +125℃ |
| Rated Current | 200A‑3000A (depends on cross‑section) |
| Welding Process | Molecular diffusion pressure welding (press‑welded both ends) |
Application Fields:
Energy Storage System (ESS)：Battery rack connection, PCS‑battery cabinet connection, energy‑storage inverter
New Energy Vehicle：EV battery pack, motor controller, inverter high‑voltage flexible connection
Power Distribution & Switchgear：Medium‑low‑voltage switch cabinet, busbar, transformer, rectifier equipment
Rail Transit：Locomotive, metro on‑board power distribution, traction converter
Renewable Energy：Wind turbine, photovoltaic combiner box & inverter
Industrial High‑current Equipment：UPS, welding machine, electrolytic equipment, power cabinet assembly
Package & Delivery
- Package: Anti‑collision foam + wooden case / carton, avoid deformation during transit
- MOQ: 10 pcs, sample order acceptable
- Lead time: 3‑7 working days for samples; 7‑15 working days for mass production
- Trade term: FOB / CIF / EXW