Flexible multilayer busbars offer an option for copper or aluminum. They consist of stacked copper or aluminum lamels, or layers of copper foils, which are tightly attached to mounting areas using a process called diffusion welding. These high conductivity lamels provide high power transmission and, in turn, increase power efficiency.
What Are the Differences Between Copper and Aluminum Conductive Materials?
Flexible multilayer busbars and laminated busbars offer an option for copper or aluminum conductive materials. They consist of assembled layers of conductive metals, specifically stacked copper or aluminum lamels. These high-conductivity lamels provide high power transmission and increase power efficiency.
Moreover, in individual EV battery cells, the current collector for the anode is commonly made of copper, while the current collector for the cathode is made from aluminum.
How Do Foil Thickness and Plating Impact Electrical Efficiency?
Flexible multilayer busbars consist of stacked copper or aluminum lamels with individual foil thicknesses of 50 – 300 µm. They offer plating options of Tin (Sn), Nickel (Ni), and Silver (Ag). These high conductivity lamels provide high power transmission and increase power efficiency.
How Is Safety Maintained with Specialized Insulation and Integration?
Flexible Multilayer Busbars offer an optional heat shrink flame retardant PVC insulation. Standard color options are orange and black, with other colors available on request. Depending on the insulation, the typical operating voltage is 1000V AC / 1500V DC. They support an operation temperature ranging from -40 °C to +105 °C, with optional higher temperatures available.
What Performance Benefits Do Multilayered Busbars Provide in Powertrains?
High conductivity lamels provide high power transmission and, in turn, increase power efficiency. A tough design makes the busbars extremely durable, making them perfect for applications where heavy vibration or pronounced thermal expansion occurs.
The flexible component of these busbars consists of multiple foils welded to a solid mounting, maintaining flexibility for easy bending and a solid fixing for tough conditions. Furthermore, they exceed the challenges of EV and HEV power connections by offering improved electrical conductivity with robust mounting strength.
Optimizing Power Distribution with Advanced Material Selection
Selecting the right conductive materials for flexible multilayer busbars is a critical step in building efficient, durable, and lightweight EV systems. Utilizing optimized copper or aluminum lamels allows engineers to achieve superior electrical performance while effectively managing mechanical stress. Advanced plating and insulation technologies further enhance the robustness of these components, making them a foundational element of modern vehicle design.
Contact ENNOVI today to learn how our flexible busbar technology can be customized for your specific power application.