This product is made by coating polyethylene on an aromatic polyamide fiber substrate, with standard specs of 16μm thickness × 1000m/roll (customizable). It has excellent mechanical properties, thermal stability (usable at 220°C), flame retardancy, chemical corrosion resistance, and good electrical insulation. Suitable for high-safety, high-energy-density batteries, it's used in power, 3C consumer, solid-state, lithium-ion, energy storage, and pouch batteries to prevent electrolyte leakage and protect components. Made with m-Aramid coating and PE base film, it needs hermetic transport, low humidity (<20% RH) for use, and resealing if unused over 4 hours.
| Item | Unit | Spec Limits | Test Data | ||
| Xbar | R | ||||
| Thickness | um | 20.0±2.0 | 20 | 0.2 | |
| Grammage | g/㎡ | 10.8±2.0 | 10.8 | 0.1 | |
| Porosity | % | 44±5 | 45 | 2 | |
| Air Permeability | Sec/00ml | 180±60 | 182 | 15 | |
| Puncture Strength(￠10mm) | gf | ≥500 | 816 | 20 | |
| Shrinkage(105CxIh) | MD | % | <5.0 | 1.6 | 0.1 |
| TD | % | ≥4.0 | 0.8 | 0.2 | |
| Tensile Strength | MD | kgf/cm² | ≥1200 | 2254 | 20 |
| TD | kgf/cm² | ≥1200 | 2516 | 21 | |
| Elongation at Break | MD | % | ≥30 | 135 | 14 |
| TD | % | ≥30 | 97 | 9 | |
| Width | mm | 20 | 680 | 0 | |
| Length | m/roll | ≥1000 | 2060 | 0 | |
Resistance to puncture, tear, and abrasion, with good tensile strength.
High temperature resistance and flame retardancy. The product can be used normally under 220°C high-temperature conditions.
Provides protection against chemical corrosion and ensures reliable electrical insulation.
The product is well-suited for batteries requiring high safety, high energy density, high discharge rate, and long cycle life, and can be applied in fields such as power batteries, high-end 3C consumer batteries, and solid-state batteries. It is used in lithium-ion batteries, energy storage batteries, and pouch batteries to: prevent electrolyte leakage from the battery and protect internal battery components from damage.
1. Suitable battery types: Well-suited for batteries requiring high safety, high energy density, high discharge rate, and long cycle life, including power batteries, high-end 3C consumer batteries, solid-state batteries, lithium-ion batteries, energy storage batteries, and pouch batteries.
2. Specific applications in batteries: Prevents electrolyte leakage from the battery and protects internal battery components from damage when used in the mentioned battery types.
