Grl Copper Busbar for Automotive Battery Pack Inter-Module Connections

Grl Copper Busbar for automotive battery packs is designed for electrical connection between battery modules in electric vehicles, hybrid vehicles, energy storage batteries, and other high-current battery systems. The busbar provides a compact and reliable current path between adjacent battery modules while supporting flexible installation requirements inside the battery pack.

Made from high-conductivity copper and available with customized dimensions, hole positions, bending shapes, and surface treatments, this inter-module copper busbar can be adapted to different battery pack structures and connection layouts.

Automotive Battery Pack Inter-Module Copper Busbar

Battery packs are typically composed of multiple individual battery cells and modules connected in series or parallel. Reliable electrical connections between these modules are essential for maintaining stable current transmission throughout the battery system.

Grl inter-module copper busbars are developed for this purpose. Compared with conventional cable connections, a copper busbar can provide a compact connection structure and a defined installation position, making it suitable for space-constrained battery pack assemblies.

The busbar can also be manufactured with formed sections or flexible connection areas to accommodate installation tolerances, vibration, and the dimensional requirements of the battery module assembly.

Key Features

• High-conductivity copper construction for efficient current transmission
• Designed for series connection between battery modules
• Compact structure for limited battery pack installation spaces
• Customizable length, width, thickness, and hole positions
• Available with customized bending and forming configurations
• Suitable for different battery module layouts and connection structures
• Optional surface treatments to meet specific electrical and environmental requirements
• Suitable for automated or semi-automated battery pack assembly

Flexible Copper Connection for Battery Modules

During vehicle operation, battery modules can experience vibration, thermal expansion, and small dimensional changes. A rigid connection without sufficient tolerance may place additional mechanical stress on the connection points.

For applications where additional flexibility is required, Grl can manufacture copper busbars with flexible sections or formed connection areas. These configurations allow the connection to accommodate controlled movement while maintaining the required electrical path.

The flexible section can be customized according to the battery pack structure, available installation space, current requirements, and required movement range.

Customized Copper Busbar Manufacturing

Battery pack structures vary significantly between vehicle platforms and battery system designs. For this reason, inter-module copper busbars are often manufactured according to application-specific drawings rather than using a single standard configuration.

Grl supports customized copper busbar production according to customer drawings, samples, or technical requirements. Typical customization options include:

Where Is This Copper Busbar Used?

Grl automotive battery pack copper busbars can be used in a range of battery connection applications, including:

• Electric vehicle battery packs
• Hybrid electric vehicle battery systems
• Battery module series connections
• Battery module parallel connections
• High-voltage battery assemblies
• Energy storage battery modules
• Industrial battery packs
• Custom battery power systems

Why Use Copper Busbars Between Battery Modules?

Copper is widely used in battery electrical connections because of its high electrical conductivity and good thermal and mechanical properties. A properly designed copper busbar can provide a low-resistance electrical path while maintaining a compact connection structure.

For battery pack applications, the busbar geometry is particularly important. The cross-sectional dimensions, connection points, bending structure, and installation position should be considered together with the required current, available space, thermal conditions, and mechanical requirements of the battery system.

For this reason, the final copper busbar design should be matched to the specific battery module and battery pack architecture.

Grl Custom Copper Busbar Solution

Grl provides customized copper busbar manufacturing for battery and electrical connection applications. Customers can provide a 2D drawing, 3D model, existing sample, or basic dimensional requirements for evaluation.

Based on the application requirements, the copper busbar can be manufactured with customized dimensions, connection holes, bending geometry, flexible sections, and surface treatment.

Whether you need a simple inter-module copper busbar or a formed flexible copper connection for an automotive battery pack, Grl can support the development and production of application-specific copper busbar solutions.

Technical Information

Request a Customized Copper Busbar

For automotive battery pack projects, the copper busbar design should match the battery module structure and electrical requirements. Send Grl your drawing, sample, or required dimensions to discuss the appropriate copper busbar configuration for your application.