Electromagnetic shielding for electric vehicles: Protecting sensitive electronics
As electric vehicles (EVs) continue their rapid evolution, the reliance on sophisticated electronic systems has never been greater. These systems¡ªranging from sensors and ECUs to power electronics and battery management units¡ªare fundamental to vehicle safety, performance, and user experience. However, this proliferation of electronics also heightens the risk of electromagnetic interference (EMI), which can compromise signal integrity, degrade system performance, or even lead to component failure.
To ensure the safe and reliable operation of EV systems, effective EMI shielding is no longer optional¡ªit¡¯s essential. This is particularly true for battery housings and electronic enclosures, which are home to some of the most sensitive components in the vehicle.
Engineering plastics: Lightweight innovation meets shielding demands
In the pursuit of lighter, more efficient vehicles, EV manufacturers are replacing traditional metal components with engineering plastics. These materials offer substantial benefits in terms of weight reduction, design flexibility, and cost-efficiency. However, their non-conductive nature presents a major challenge: they inherently lack EMI shielding capabilities.
While conventional approaches¡ªsuch as incorporating metal meshes or flakes¡ªoffer limited protection, they often compromise weight and add complexity. That¡¯s where our innovation comes in.
Our solution: Advanced surface metallization for engineering plastics
We¡¯ve developed Atotech? Polar Shield a cutting-edge electroplating technology that applies ultra-thin, highly conductive metal coatings to engineering plastics. This process delivers exceptional EMI shielding while preserving the structural and weight advantages of plastic components.
Our selective electroplating technique allows shielding only where it’s needed¡ªtypically on the interior surface¡ªreducing both metal usage and overall system weight. This streamlined approach supports compact, space-efficient design without compromising performance.
Our Polar Shield technology stack
Featured products
Key advantages for EV manufacturers
Weight and cost efficiency
Maintain the lightweight nature of plastics while achieving EMI shielding comparable to metal enclosures.
Comprehensive frequency protection
Our multi-layer shielding system blocks interference across both low and high-frequency ranges¡ªfrom kHz to GHz.
Optimized space usage
Selective plating enables thinner walls and tighter packaging¡ªcritical for compact battery and electronics integration.
Compliance without compromise
Our technologies meet global environmental regulations, eliminating hazardous chemicals while maintaining top-tier performance.
Sustainability-driven innovation
With non-toxic chemistries and reduced metal use, our solutions help manufacturers meet sustainability targets and reduce lifecycle impact.
