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Why EMI Matters in NEV?

core interference sources

  • High-voltage system: Battery packs (400V/800V), inverters, and DC-DC converters generate strong common-mode noise.
  • High-frequency switching: SiC/GaN devices introduce wideband interference in the MHz to GHz range.
  • Dense wiring: High- and low-voltage harnesses run in parallel, easily causing crosstalk; signal lines such as CAN, LIN, and Ethernet are highly sensitive.
  • Metal body cavity effects: Can easily form resonances, amplifying interference in specific frequency bands.
Severity of consequences
Control-unit malfunction → potential safety hazards
Communication failures → functional breakdowns
Failure to pass vehicle EMC certification → project delays and soaring costs
Battery Management System (BMS) & Battery Pack
Pain points: high-voltage sampling line interference, inter-module coupling, enclosure gap leakage
Recommended Solution:
1) KLD-T45-0001 Conductive Foam Gasket
√ Silicone-based material, –40°C to +125°C thermal resilience, supporting battery-pack cycling requirements,
√ Shielding effectiveness ≥60 dB (1–10 GHz), efficiently seals enclosure joints;
√ Custom hourglass or D-shaped geometries available to fit complex flange profiles;
2) 3D-C09002 Conductive Aluminum Foil Tape
√ Provides localized shielding for high-voltage sampling harnesses;
√ Highly conformable adhesive layer eliminates bubbles and fits curved cable routes.
Motor Controller (MCU) & On-Board Charger (OBC)
Pain points: IGBT/SiC switching noise, busbar radiation, PCB-level coupling
Recommended Solution:
1) SMD-G-KLD Series SMT Gasket (e.g., 6-9.5-8-R)
√ Direct SMT mounting on PCB grounding pads, replacing mechanical springs;
√ 260°C reflow compatible, fully supports automated SMT production;
√ Z-axis resistance lower than 0.1 Ω, ensuring a low-impedance grounding path;
√ Ideal for grounding near driver ICs, gate drivers, and CAN transceivers;
2) AIR LOOP™ Conductive Foam Gasket
√ Apple-validated lightweight architecture reducing weight by ~30%;
√ Embedded signal-path design enables integrated "shielding + routing," ideal for compact integrated e-drive units.
Smart Cockpit & ADAS Sensors
Pain points: 5G/V2X antenna interference, reduced mmWave radar sensitivity, display-module EMI
Recommended Solution:
1) KLD-M33-0001 High-Resilience Conductive Foam
√ Surface resistance ≤0.07 Ω/sq; shielding ≥60 dB (10 MHz–3 GHz);
√ Used for sealing and shielding gaps in central displays, T-Box modules, and mmWave radar housings
2) Gold-Plated PI Film SMT Foam (e.g., SMD-G-KLD-3-3-2-R)
√ Gold-plated surface provides long-term oxidation resistance and stable contact impedance;
√ Suitable for high-reliability grounding in connectors and RF modules.
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Why Konlida for Automotive?

Automotive-Grade Material System
Deep Customization Capability
Mass Production Assurance
01
Automotive-Grade Material System
All EMI shielding materials meet UL94-V0 / V1 flammability standards, satisfying strict EV fire-safety requirements.
02
Global Environmental Compliance
Fully RoHS, REACH, and Halogen-Free certified — ensuring smooth access to markets in Europe, North America, Japan, Korea and other regulated regions.
03
Wide-Temperature Stability
Materials operate reliably from –40 °C to +180 °C; select silicone-based products remain stable up to +150 °C — ideal for inverter and OBC thermal loads.
04
Automotive Reliability Validation
Key materials have passed AEC-Q200 tests including thermal shock, humidity aging, and vibration fatigue — supporting vehicle-level EMC and functional safety compliance.
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01
Multiple Core Material Options
Offers four foam substrates — PU, PORON®, Silicone, EPDM — to match specific compression force (10–80 psi), resilience, and sealing needs.
02
Precision Forming for Complex Geometries
Supports punching, CNC machining and die-cutting, enabling D-shape, hourglass, and multi-step profiles for irregular mounting surfaces.
03
Integrated Functional Design
Custom adhesives (acrylic or silicone) and multilayer laminates (e.g. conductive fabric + foam + foil) deliver EMI shielding, grounding, cushioning, and insulation in a single component.
04
Early Engineering Collaboration
Dedicated FAE teams provide DFM reviews, 3D-model simulation, and rapid prototyping — sample delivery within 72 hours for fast design iteration.
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01
Scalable Supply Capacity
In-house production delivers over 20 billion+ pieces of conductive foam annually, ensuring stable supply for large-volume EV and electronics programs.
02
End-to-End Quality Control
From raw-material inspection (IQC) to final shipment (OQC), we follow IATF 16949 standards — all critical parameters fully traceable.
03
Exceptional Batch-to-Batch Consistency
Automated coating, lamination, and inspection ensure consistent shielding performance, thickness and contact resistance — with process capability index Cpk ≥ 1.33.
04
Validated by Industry-Leading OEMs
Qualified across supply chains of leading OEMs and Tier-1 suppliers (e.g. BYD, NIO, Bosch, UAES), proving our capability in automotive-grade high-volume production.
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Trust Built on Proven Capability

To date, Konlida’s EMI shielding solutions are deployed across leading global industries:

🔹 Consumer Electronics: Integrated into flagship devices from Apple, Huawei, Xiaomi, OPPO, and other top brands.
🔹 New Energy Vehicles: Trusted within the supply chains of BYD, NIO, XPeng, Bosch, UAES, and major Tier-1 partners.
🔹 Telecom & Industrial Equipment: Applied in critical systems from Huawei, ZTE, HPE, Siemens, and GE Healthcare.

We are more than a materials supplier—we are your EMC engineering partner, delivering innovation, reliability, and close technical collaboration to solve your most demanding electromagnetic compatibility challenges.

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Expert In Custom Solutions For More Efficient Electromagnetic Shielding Components
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Mob:+86 189 1365 7912
Tel: +86 0512-66563293-8010
Address: 88 Dongxin Road, Xukou Town, Wuzhong District, Suzhou City, Jiangsu Province, China

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