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What is the primary manufacturing advantage of high-voltage extruded busbars over overmolded busbars in EV battery packs?

DIRECT ANSWER

The primary manufacturing advantage of high-voltage extruded busbars is excellent cost-effectiveness and a 20-30% reduction in production time, achieved through standardized processes and using fewer materials.

The increasingly competitive electric vehicle industry requires agile innovation for high-voltage busbars to connect battery modules, both within the battery pack and in battery junction boxes. High-voltage rigid extruded busbars address production speed, cost, and quality challenges in the changing environment of electric vehicles.

What Are the Core Manufacturing Advantages of the Extrusion Method?

Due to the standardized manufacturing processes and use of fewer materials compared to traditional busbars, the HV Extruded Busbar offers cost advantages and reduces production time by 20 โ€“ 30%, especially in high-volume production. High-voltage rigid extruded busbars address production speed, cost, and quality challenges in the changing environment of electric vehicles, ensuring seamless customization while optimizing volume production.

How Do Extruded and Overmolded Busbars Compare in Performance?

Overmolded busbars offer excellent customizability and shape complexity, while extruded busbars offer excellent cost-effectiveness. Extrusion matches overmolding with excellent ratings in insulation effectiveness, mechanical strength and durability, environmental compatibility, and lifespan and reliability. 

Furthermore, extruded busbars exceed overmolded busbars by offering excellent electrical conductivity and thermal performance.

Can Extruded Busbars Support Complex Battery Architectures?

High-voltage rigid extruded busbars feature a flexible design that can adapt to complex spaces, allowing integration into smaller spaces while supporting higher power density. Everything is fully customizableโ€”from the shape to lengthโ€”so the design can be adapted for various complex installation environments and electrical designs. In addition, there is an option to integrate them with flexible busbars and high-voltage connectors.

Accelerating Production with High-Voltage Extruded Solutions

Selecting the right busbar technology is essential for reducing battery pack costs and accelerating time-to-market for new electric vehicle models. High-voltage extruded busbars allow manufacturers to achieve significant gains in production speed and material efficiency while maintaining the highest safety standards. These components provide a robust foundation for reliable energy distribution in the most demanding automotive environments.

Contact ENNOVI today to learn more about our high-voltage extruded busbar solutions and how we can optimize your battery pack assembly process.

Have a specific project in mind?

Our application engineers work on BTS and BTP programmes across global EV OEM and Tier-1 projects. Tell us your pack architecture and current profile and we’ll recommend the right bus bar approach.

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Bus Bar Selection Guide

ENNOVIโ€™s full material selection guide for HV bus bars โ€” Al, Cu, laminated, and flexible options with specification data.

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HAVE A SPECIFIC PROJECT?

Speak to an Application Engineer

Our engineers work on BTS and BTP projects across global EV OEM and Tier-1 programmes

Brief details

Portfolio

Power

Products

Bus bars (Al/Cu, laminated, flexible), SealTech, BusMate, HV Connectors, Overmoulded Bus bars

Buyer stage

Manufacturing & Cost Efficiency

Author

ENNOVI

Last updated

June 2026

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