Tin Coated Copper Busbar Car battery Bus bar

√  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

Leading Tin Coated Copper Busbar Car battery Bus bar
Manufacturer

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.

Tin Coated Copper Busbar Prodution Process:

1. Substrate pretreatment

• Unwinding and annealing: copper wire is stretched by wire drawing machine and then annealed, controlling the temperature at 400-550℃ to optimize the ductility.
• Pickling activation: Use acidic solution (such as tinning flux) to remove surface oxides and enhance the adhesion of plating.

2. Tin plating process

• Plating solution configuration: use stannic acid or tin chloride plating solution, temperature control 250-260 ℃ (to prevent oxidation and tin tumors).
• Plating process: Form a uniform tin layer by electrochemical deposition, the thickness of the layer is 3-12μm, and support salt spray test ≥ 240 hours.

3. Post-treatment and testing

• Cooling and insulation: air or air-cooled and wrapped with insulating materials (e.g. heat-shrink tubing or impregnated paint).
• Quality control: Test conductivity, plating thickness, insulation strength, complying with IATF 16949 and RoHS standards.

Tin Coated Copper Busbar Car battery Bus bar Feature:

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).

Tin Coated Copper Busbar Car battery Bus bar Application:

• Power battery pack: cylindrical/square battery connection for Tesla, BMW and other models.
• Charging system: conductive module for high-voltage fast-charging pile, supporting 800V high-voltage platform.
• Energy storage system (BESS): low inductance and high reliability power distribution in energy storage batteries.

What is the use of busbar in battery?

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.