Products Description
Polyimide PI Separator for Solid-state Battery, High-Temperature Resistant Thermally Stable NCM811 PI Separator Material
Features:
1. High-temperature resistance: Provides outstanding safety with a decomposition temperature reaching up to 530°C. The material does not melt and has no defined melting point, ensuring thermal stability under extreme conditions.
2. Stable properties: Physical cross-linking between fibers creates a rigid support framework that maintains structural integrity even after the gel electrolyte is introduced. In abnormal situations such as needle puncture, the structure helps prevent combustion or explosion, greatly improving battery safety.
3. High porosity: Features a tunable 3D microporous architecture, making it suitable for a wide range of applications and adaptable to various battery system designs.
Technical Parameters
| Item | Unit | Value |
| Thickness | um | 30±5 |
| Surface density | g/m2 | 3±0.5 |
| Porosity | % | ＞90% |
| Permeability（100ml） | s | 0.080(0.12bar) |
| Operating temperature | ℃ | -160~350 |
| Tensile strength (TD) | MPa | ≥5 |
| Tensile strength (MD) | MPa | ≥25 |
| Liquid uptake | % | ＞80 |
