Breakthrough separator technology

We’re leading the commercialization of polyimide separator films to power reliable, safe, and high-performing applications.

Breakthrough separator technology

We’re leading the commercialization of polyimide separator films to power reliable, safe, and high-performing applications.

OUR EDGE

Extreme Thermal Stability

Withstands temperatures beyond 450°C without deformation, compared to just ~150°C for typical PE/PP separators. Maintains structural integrity with <0.5% shrinkage at 300°C. This level of heat resistance minimizes risk of thermal runaway and delivers peace of mind in EVs, aerospace, and defense.

Ultra-High Mechanical Strength

Tested to an effective tensile modulus of 3.94 GPa and hardness of over 150 MPa, our polyimide separator resists puncture, compression, and tearing. This high rigidity blocks lithium dendrites and ensures mechanical reliability even under vibration, pressure, or compression.

Optimized Ion Transport

With a finely tuned 50–60% porosity and sub-300 nm pore size, ions move faster and more evenly across the separator plane. Combined with <2s electrolyte wetting time, the result is high-rate charging and discharging with low internal resistance and high energy transfer efficiency.

Ultra-Thin Profile

Measuring just 10–15 µm thick (nearly half of conventional separators), our separator allows for more active material within the same cell footprint. This translates into a 5–10% increase in overall energy density—without compromising strength, safety, or cycle life.