2025-07-10   Lankwitzer(蓝威涂料）

GB 38031-2025 New National Standard is Approaching:

How Does UV Coating Technology Lead the Safety Upgrade of

Power Batteries?

UV Spray Coating: Pioneering a New Era of Power Battery Safety

In response to the "strictest-ever battery safety regulations,Lankwitzer , a global leader in UV coatings, has developed a groundbreaking battery

insulation technologyafter years of R&D tailored for BMW’s power battery characteristics: UV Spray Coating. Compared to traditional PET foil, UV

 spray coating offers the following advantages:

1. Performance Superiority

Stronger Adhesion: Post-curing shear strength reaches 16MPa.

Higher Voltage Resistance: Withstands DC 6000V voltage testing without breakdown.

Superior Thermal/Humidity Resistance: Passes 85℃/85%RH for 1000 hours.

Excellent Flame Retardancy: Achieves UL94 V0 certification.

Chemical Corrosion Resistance: Resists electrolyte erosion without swelling or delamination.

2. Process Advantages

Simplified Workflow: Air spray application, eliminating cutting/overlapping.

High Efficiency: Single cell processing time ≤ 3 seconds.

Strong Adaptability: Single production line supports variable cell sizes via parameter adjustments (spray gun, line speed).

Easy Rework: Defective cells require only 3–6 seconds for laser paint removal at a single workstation.

High Yield Rate: First-pass quality rate reaches 99.5%.

With the implementation of China’s GB 38031-2025 standard, the power battery industry is undergoing a profound safety transformation. Traditional 

PET foil struggle tomeet the demands of high-voltage platforms (800V/1000V) and CTP/CTC battery structures. UV spray coating, with its 16MPa adhesion, 

6000V+ voltage resistance, UL94 V0 flame retardancy, and >99.5% yield rate, has become the preferred insulation solution for next-gen power batteries.

Technological Upgrades Drive Industry Reshuffle

The "zero-tolerance" safety requirements of the new standard will accelerate the elimination of SMEs reliant on traditional blue films, while pushing industry

 leaders (e.g., CATL, BYD) to adopt UV spray coating rapidly.

 Collaborative Innovation Across the Industrial Chain

From materials (e.g., Lankwitzer’s high-performance UV coatings) to equipment (Steelmaster/Stema UV spray lines) and vehicle integration (BMW/BYD's 

high-voltage platforms), UV spray coating is forming a complete industrial ecosystem, elevating China’s battery safety standards to global leadership.

Future Outlook

Post-2026, "no fire, no explosion" will become standard for NEVs. UV spray coating, with its high safety, cost efficiency, and green manufacturing advantages, is

poised to dominate battery insulation, enabling higher energy density, faster charging, and longer lifespans.

The new standard represents not just a safety upgrade but a technological revolution. UV spray coating marks the transition of power batteries from 

"passive protection"to "active safety", laying a solid foundation for global NEV adoption. As the technology evolves, China's power battery industry will continue

 leading the world in both safety and performance.

Long text source: Ministry of Industry and Information Technology of the People's Republic of China