Polypropylene (PP) Separator (SEP-PP-16), Dry-Process Single-Layer Polypropylene Battery Separator with Zero TD Shrinkage and High Strength

About this item

• Zero TD Shrinkage for Enhanced Safety: features zero TD shrinkage (0% at 90°C/1 h) and only ≤ 3% MD shrinkage, significantly reducing internal short circuit risks caused by separator shrinkage at elevated temperatures and ensuring superior dimensional integrity during cell assembly and cycling
• High Mechanical Strength: provides high mechanical strength with MD tensile strength of ≥1200 kgf/cm², TD tensile strength of ≥ 100 kgf/cm², and puncture strength of ≥280 gf, ensuring robust processing during cell assembly and reliable long-term cycling performance
• Dry-Process Manufacturing for Consistency: produced via advanced dry-process stretching technology (MSCS), delivering consistent pore structure with a uniform thickness tolerance of ±2 μm, excellent chemical and thermal stability, and reliable performance across various battery formats
• Optimized Porosity & Permeability: features a well-balanced porosity of 38-40% and air permeability of 250-320 sec/100 ml, providing sufficient ionic transport pathways while maintaining excellent mechanical integrity and effective dendrite suppression
• High Purity & Strict Quality Control: ensures no pinholes, no external mechanical scratches, and uniform color through strict quality control, with width tolerance of +0.5/-0.0 mm for precise dimensional consistency and reliable reproducible cell assembly