Tin coated copper busbar connector for EV battery packs, energy storage systems and power distribution. Custom shapes, hole patterns and surface finishes support OEM/ODM industrial purchasing.
√ Easily tailored to specific battery designs and requirements
√ Tin coating adds a layer of mechanical protection to the copper
√ Compatible with various battery chemicals and configurations
√ Tin coating adds a layer of mechanical protection to the copper
Our Tin-coated copper busbars is a key conductive component in new energy vehicle battery packs, which is mainly used to efficiently transmit high currents, connect battery monomers, reduce contact resistance, and adapt to complex working conditions. Its surface tinning treatment significantly improves oxidation and corrosion resistance, and is widely used in electric vehicle powertrain, charging pile and energy storage system.
| Item Type: | Tin Coated Copper Busbar Car battery Bus bar |
|---|---|
| Material base: | High purity electrolytic copper (T2 copper, purity ≥99.9%) or aluminum, tin/nickel/silver plated surface. |
| Coating: | Tin (matte or bright finish) |
| Dimensions: | Typical width 20mm, thickness 3mm, length 200mm (can be customized); copper foil single layer thickness 0.03-0.3mm, support multi-layer stacking. |
| Insulation: | PVC, polyimide or polyester resin, thickness 0.1-1.0mm, flame retardant grade UL94-V-0. |
| Resistivity: | ≤0.00001Ω, conductivity ≥57%. |
| Conductivity: | Maintains high electrical conductivity for efficient power transmission |
| Rated voltage: | DC 1.0kVDC, maximum power up to 300kW |
| Customization: | Available in various sizes, shapes, and configurations to meet individual car battery needs |
| Durability: | Designed to withstand automotive environments and mechanical stress |
| Safety: | Provides reliable electrical connections for safe battery operation |
As a leading manufacturer of Tin Coated Copper Busbars for car batteries, we specialize in delivering high-quality solutions tailored to meet the demanding requirements of automotive applications. Our busbars are meticulously crafted using premium copper materials and coated with tin for enhanced durability and corrosion resistance. We prioritize innovation and customization, ensuring that our busbars are precisely engineered to fit the specifications of car battery systems, providing reliable electrical connections and optimal performance. With a commitment to excellence and customer satisfaction, we stand as a trusted partner for automotive manufacturers seeking top-tier busbar solutions. Choose us as your preferred supplier for Tin Coated Copper Busbars, and experience the difference in quality and reliability.
1. Substrate pretreatment
2. Tin plating process
3. Post-treatment and testing
In a battery system, busbars serve as critical components for efficiently distributing electrical power within the battery pack. Here’s how busbars are used in batteries:
1. High conductivity and low loss
– Copper substrate combined with tin plating layer, taking into account the conductivity efficiency (close to pure copper) and surface oxidation resistance, reducing energy transmission loss.
2. Environmental resistance
– Tin-plated layer to isolate moisture, salt spray corrosion, suitable for automotive battery packs, high temperature, vibration environment.
3. Flexible design
– Multi-layer copper foil laminated structure supports multi-angle bending, suitable for complex battery module layout.
4. Integration and light weight
– Voltage/temperature sensor signal lines can be integrated to reduce overall weight (50% weight reduction compared to aluminum busbar).
In a battery system, busbars serve as critical components for efficiently distributing electrical power within the battery pack. Here’s how busbars are used in batteries:
1. Current transmission and distribution
– Connecting battery cells to form series/parallel circuits, realizing efficient energy transfer and reducing contact resistance (laser welding technology reduces heat loss).
2. Thermal management support
– Copper’s high thermal conductivity (401W/mK) helps to dissipate heat, avoiding localized overheating and triggering thermal runaway of the battery.
3. Mechanical Stability
– Rigid structure supports the battery module to resist displacement caused by vehicle vibration and enhance safety.
4. Signal Integration
– Part of the hybrid bus integrates BMS signal lines to monitor battery voltage, temperature and other parameters in real time.
| Product Type | Tin Coated Copper Busbar |
|---|---|
| Material | Copper with Tin Coating |
| Surface Treatment | Matte or Bright Tin Plating |
| Insulation Type | Optional PVC, Polyimide or Resin |
| Application | EV Battery and Power Distribution |
| Customization | Size, Shape and Hole Pattern |
