Lankwitzer’s UV Coating for Battery Cells Powers 800V Platforms, Cutting Fire Risks by 60%

In 800V systems, where voltages exceed traditional insulation limits, Lankwitzer’s coating introduces microencapsulated fire retardants that activate upon impact or overheating. These capsules release a ceramic-forming agent, creating a protective layer within 0.1 seconds to suppress arcing. Porsche’s Taycan Turbo S, equipped with this technology, recorded no insulation failures during 1,000 cycles of 5C charging.

High-Voltage Specific Design
The coating’s dual-layer structure—an inner polyimide layer for dielectric strength and an outer silicone-acrylic layer for mechanical resilience—achieves a breakdown voltage of 8kV/mm, 25% higher than standard solutions. Its low modulus (30MPa) accommodates cell swelling during charging, reducing stress-induced cracks by 50%.

Thermal Management Synergy
By integrating phase-change materials into the coating matrix, Lankwitzer enables precise temperature control in fast-charging scenarios. NIO’s 150kWh battery pack, using the coating, maintains a maximum cell temperature of 42°C during 3C charging, compared to 55°C with traditional films.

Global Production Milestones
Lankwitzer’s Guangzhou factory, operational since Q2 2025, has shipped over 50 million meters of UV coating for battery cells to support 800V platform production in China, Europe, and North America. The facility’s carbon-neutral manufacturing process sets a new standard for sustainable battery materials.