Copper Foil Bus Bar
The Copper Foil Bus Bar is a flexible conductive component made from high-purity copper foil through precision molding and special connection processes. It is primarily used in short-distance current transmission scenarios within the power battery pack of new energy vehicles. Its core features are precisely designed around the demanding operating conditions of new energy vehicle battery packs, forming a differentiated competitive advantage.
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Product Introduction
In the power battery system of new energy vehicles, the stability, safety, and adaptability of the current transmission directly determine the overall vehicle performance and safety level. With the implementation of the new national standard GB38031-2025 "Safety Requirements for Traction Batteries of Electric Vehicles", more stringent requirements have been put forward for the thermal runaway protection, vibration resistance, and long-term reliability of the internal connecting components of the battery pack.
As the core conductive component between battery cells and modules in the battery pack, the Copper Foil Bus Bar, with its core characteristics of flexible adaptability, low-loss conductivity, and safety protection, has become a key solution to the problem of current transmission under complex working conditions, laying a solid core defense for the efficient and stable operation of the new energy vehicle battery system.
Main Functions
Low-loss conductive function
The Copper Foil Bus Bar, utilizing high-purity copper material and molecular diffusion welding technology, achieves low contact resistance and low line resistance, ensuring minimal energy loss during current transmission.
01
Flexible buffering function
The Multilayer Bus Bar possesses excellent flexibility and fatigue resistance, effectively absorbing thermal expansion and contraction deformations during battery charging and discharging, as well as vibration and impact during vehicle operation. Through deformation buffering, it avoids stress concentration issues caused by rigid connections, prevents loosening and fracture at connection points, and ensures long-term operational stability of the battery system.
02
Thermal management auxiliary function
The high-purity copper material used in the short, Copper Laminated Flexible Connectors, possesses excellent thermal conductivity, enabling rapid conduction of heat generated by the battery cell to the cooling system, thus preventing the formation of local hot spots.
03
Safety protection function
In extreme situations such as vehicle collisions and squeezing, the excellent ductility of short copper foil soft connectors can absorb impact energy, preventing safety hazards such as short circuits and disconnections caused by fractures at the connection points.
04
Main features
Flexible adaptation feature
The Flexible Laminated Copper Bus Bar adopts a multi-layer ultra-thin copper foil laminated structure, which can achieve multi-directional bending and micro-displacement compensation. It can effectively absorb the thermal expansion and contraction deformation during battery charging and discharging, as well as the vibration and impact during vehicle driving, avoiding the risk of fracture caused by rigid connections. Compared to traditional hard copper bars, its installation freedom is significantly improved, which can adapt to the compact and complex wiring environment inside the battery pack, reducing the risk of installation interference.
Precise dimensional control
For the design of short and small transmission scenarios, the dimensional tolerance of the Customized Tin Plating Copper Laminated Busbar is strictly controlled within ±0.5mm to ensure precise fit with the battery pole and module interface, thereby guaranteeing connection stability.
Full-condition adaptability
The Flexible Busbars for Battery Connector exhibits wide temperature adaptability, enabling stable operation in extreme environments ranging from -50℃ to 200℃. Additionally, through special surface treatment, it boasts excellent corrosion and oxidation resistance, withstanding complex environmental erosions such as electrolyte vapor and humidity changes inside the battery pack, ensuring long-lasting and reliable operation.
Safety protection design
By optimizing the structure to achieve uniform current carrying and rapid heat conduction, the formation of local hot spots can be effectively avoided, reducing the risk of thermal runaway triggering. At the same time, its excellent ductility can absorb impact energy in extreme situations such as vehicle collisions, reducing the probability of connection failure and buying time for occupant safety.
Packing & Delivery
With a well-established supply chain management system and strong customs clearance capabilities, we offer full-process visual tracking services to ensure your goods are delivered on time and safely.
The package of Copper Foil Bus Bar: Inner plastic bag + inner EPE foam packaging + outer carton + outer pallet + cable ties and moisture-proof plastic wrap.
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