SafeCoat DDS in Pouch Cells
Proven Performance from Consumers to EV-Scale
SafeCoat™ DDS has been validated in large-format pouch cells, confirming that the same performance advantages observed in coin cells scale seamlessly to EV-relevant formats. Builds up to 5 Ah demonstrated consistent cycling, high coating uniformity, and stable performance, reinforcing SafeCoat’s readiness for mass production.
- Validated Scalability: From 0.2 Ah to 5 Ah pouch cells, SafeCoat maintained coating quality and stable cycling.
- Consistent Performance: Even in unoptimized, additive-free builds, SafeCoat delivered state-of-the-art results.
- Safety & Thinness: Ongoing tests confirm thermal stability and safe operation, with thin coatings down to 10 µm under evaluation.
- OEM-Verified Results: Partner OEMs are achieving strong results with SafeCoat across their optimized chemistries, confirming both compatibility and superior properties.
We continue to validate SafeCoat directly with customers, bringing the flexibility to adapt at the customer site and meet their specific requirements. Looking ahead, SafeCoat is being prepared to support future battery needs across materials, chemistries, and cell formats, ensuring that wherever separators are used, SafeCoat can deliver.
Eliminates Thermal Runaway After Nail Penetration
- 20 µm / 5 Ah SafeCoat cell endures 1-hour nail-penetration test at 100% SOC without thermal runaway or sudden discharge
- Nail short gradually discharges the cell from 4.16 V to 3.68 V over 1 hour without sharp voltage drop
- 15 µm / 1.5 Ah SafeCoat cell verified with 2-nail penetration test in-house (see the picture and video below)
Latest Technical Update: SafeCoat Pilot Cells
Dual Innovation in Microbatteries
Nimbus ZEATM (Z-Fold Electrode Architecture) + SafeCoatTM DDS
In pursuit of more energy-dense small batteries, Nuvola engineers developed the Nimbus ZEA™, powering applications such as TWS earbuds, hearing aids, and wireless IoT sensors.
Z-folded electrode architecture, enabled by SafeCoat™ separator, provides more energy in a cylindrical can, while working for previously unobtainable electrode shapes and stack thickness.
25% More Active Material
from improved internal space utilization with stacked electrodes
16× Longer Bluetooth Connectivity
high surge current support enabled by 8× larger electrode surface area
25% Longer Run Time
enabled by flat electrodes with higher active material loading
Flexible for Next-Gen Wearables
compatible with non-circular cell designs to expand application possibilities
Breakthroughs Become Manufacturable
When combined with SafeCoatTM DDS, the Nimbus architecture not only achieves higher energy and power density, but also simplifies manufacturing. This is one example of how SafeCoat catalyzes innovations across formats.
SafeCoat unlocks high-precision battery manufacturing. As batteries get smaller, alignment tolerances become extremely tight, and even tiny mismatches can cripple performance. The combination of Nimbus ZEA™ and SafeCoat™ DDS enables high-yield production down to the millimeter scale.

