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How does the thermal performance of extruded busbars compare to PVC dipping busbars in EV applications?

DIRECT ANSWER

Extruded busbars provide excellent thermal performance for electric vehicle applications, whereas PVC dipping busbars only offer poor thermal performance, making extruded options superior for heat management.

High-voltage rigid extruded busbars address production speed, cost, and quality challenges in the changing environment of electric vehicles. This extruded busbar ensures seamless customization while optimizing volume production. Our design features a large contact surface area, which enhances electrical conductivity and offers a high current carrying capacity, while ensuring reliable electrical performance.

How Do Extruded and PVC Dipping Busbars Compare in Heat Management?

Extruded busbars provide excellent thermal performance. In contrast, PVC dipping busbars offer poor thermal performance. 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.

What Do Technical Capability Ratings Reveal About These Insulation Methods?

Extruded busbars receive an “Excellent” capability rating for their thermal performance. In contrast, PVC dipping busbars receive a “Poor” capability rating in thermal performance. High-voltage rigid extruded busbars help EV manufacturers improve production speed, reduce costs, and maintain quality in a rapidly evolving electric vehicle market.

Are There Mechanical and Electrical Advantages Beyond Thermal Performance?

Extruded busbars receive an “Excellent” capability rating in electrical conductivity, mechanical strength and durability, environmental compatibility, and lifespan and reliability. In contrast, PVC dipping busbars receive a “Good” capability rating in these same categories.

Why Do Extruded Busbars Offer Superior Reliability and Lifespan?

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.

Mastering Heat Management with Extruded Innovation

Extruded technology provides the robust thermal and mechanical properties necessary to support high-power applications safely and efficiently. Manufacturers can achieve greater system stability and higher safety margins by moving away from legacy dipping methods. Achieving this level of performance ensures that electric vehicles meet the rigorous expectations of modern drivers.

Contact ENNOVI today to learn how our high-voltage extruded busbar solutions can optimize thermal performance and reliability in your next project.

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

Performance Optimization

Author

ENNOVI

Last updated

June 2026

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