Copper Foil Laminated Busbar Welding
Copper Foil Laminated Busbar Welding is a flexible conductive component that is formed by integrating multiple layers of copper foil through a high-temperature diffusion welding process. It combines the high conductivity of copper foil with the flexible characteristics of the laminated structure and is widely used in high-voltage systems of new energy vehicles, energy storage power stations, industrial automation, rail transit, power equipment, and other high-demand current transmission scenarios. This product has both high current carrying capacity and excellent thermal stability, and is particularly suitable for application environments with limited space or frequent vibration.
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Product Introduction
As the world's leading Copper Foil Laminated Busbar Welding solution provider, we rely on years of professional experience to provide high-performance copper foil diffusion welded laminated busbars for new energy, industrial power, energy storage, and other fields. The product uses high-purity electrolytic copper foil (purity ≥ 99.9%), combined with advanced molecular diffusion welding technology, to achieve a perfect balance of electrical performance, mechanical strength, and environmental adaptability. Our busbars can be customized according to customer needs in thickness (0.05-0.3mm), cross-sectional area (10-1000mm²), and surface treatment solutions, and are widely used in new energy vehicle high-voltage systems, industrial motor drives, energy storage power stations, and other scenarios, helping customers improve system efficiency and reliability.
Wide application scenarios, matching the needs of multiple industries
| Industry applications | Functions |
| New energy vehicle high-voltage system | Main Multilayer Copper Foils Flexible BusBars connection, battery module flexible connection, power system shunt |
| Energy storage system/photovoltaic inverter | Battery cell module output, BMS power acquisition line, inverter interface Press-Welded Connectors |
| Industrial automation/robot | Control cabinet wiring, power module connection, flexible grounding wire |
| Railway locomotive/rail transit | On-board power supply system, grounding soft connection, anti-vibration conductive device |
| Data center/high-voltage cabinet | Copper Foil Resistance Diffusion Soldering Flexible Connection flexible extension, compact UPS system internal connection |
Core selling points and performance parameters
High conductivity · low resistance
High-purity copper foil (>99.9%) is used, with excellent conductivity
Under a 20℃ environment, the resistance value of 1 meter is only 0.01\~0.1Ω, reducing energy consumption
Diffusion welding has no melting point connection, avoiding the high resistance problem caused by traditional spot welding
01
High current · high load
The cross-sectional area of 10~~1000mm² can be customized, and the continuous current carrying capacity reaches 300~~1000A+
For example: 100mm² cross-sectional area, 0.15mm copper foil thickness, can carry 300~400A at 40℃
Suitable for high-power scenarios such as new energy, energy storage, and electricity
02
High flexibility · Easy installation
Copper foil thickness 0.05\~0.3mm optional, flexible structure, suitable for small space
The minimum bending radius is only 3~~5 times the total thickness, such as a 3mm thick Copper Foil Connector bending radius of only 9~~15mm
Replace rigid copper busbars, adapt to complex vibration environments, and improve wiring efficiency
03
Diverse customization · Meet complex needs
Optional structure: side-by-side type, T-type, L-type, hole type, etc.
Support customized parameters: thickness, number of layers, length, cross-sectional area, electroplating type, etc.
Can integrate functions such as thermostat, insulation layer, protective coating, fast proofing, and stable delivery
04
High reliability · Quality assurance
Adopting an automated vacuum diffusion welding process, high welding consistency
Passed ISO9001, IATF16949 certification, in line with RoHS environmental protection standards
Each batch of Insulated Flexible BusBars is tested for conductivity, thermal shock, salt spray, etc., with a service life of more than 10 years, suitable for extreme working conditions
05
Why choose our copper foil diffusion welding laminated busbar?
Cutting-edge technology, guaranteed performance: Fully automatic precision diffusion welding production line ensures that each Copper Flexible BusBar achieves atomic-level metallurgical bonding, and the resistance, strength, and consistency indicators are industry-leading.
In-depth material and process know-how: We have a core database and patented technology for copper foil selection, surface treatment, lamination parameters, and diffusion welding temperature and pressure curve to solve industry pain points such as welding voids and insufficient bonding strength.
Engineering-oriented customization capabilities: Not only a manufacturer, but also a solution partner. We support full-process engineering services from structural design, simulation analysis, to sample trial production and test verification based on your current voltage, space, vibration, and heat dissipation environment requirements.
Strict quality control system: Complete quality control throughout raw materials (high-purity copper foil), processes (online resistance/tension monitoring) to finished Press-welded Flexible Copper Connections (100% electrical performance + appearance inspection, sampling metallographic analysis), in line with IATF 16949, ISO 9001 standards.
Large-scale delivery and global support: Intelligent factories ensure stable batch delivery, and professional engineering teams provide rapid technical response and localized services to global customers.
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