Used in separating lithium ion battery cathode and anode,to prevent short circuit Product characteristics:
1.Uniform pore size distribution
2.Low obturator temperature
3.High film rupture temperature Application: Communications products battery,Tool Battery.
| Term | Unit | Inspection value | Inspection value | Inspection value | Inspection value |
| Appearance | | Ivory-white | Ivory-white | Ivory-white | Ivory-white |
| Thickness | micron | 16±2 | 18±2 | 20±2 | 25±2 |
| Gas permeability | Sec/100ml | 350-550 | 350-500 | 350-550 | 350-650 |
| Porosity | % | 38-44 | 38-44 | 38-44 | 38-44 |
| Puncturing Strength | g | ＞300 | ＞300 | ＞300 | ＞300 |
| Tensile strength MD | Mpa | ＞90 | ＞90 | ＞90 | ＞90 |
| Tensile strength TD | Mpa | ＞100 | ＞100 | ＞100 | ＞100 |
| Film close temperature | ℃ | ≤135 | ≤135 | ≤135 | ≤135 |
| Film break temperature | ℃ | ≥147 | ≥147 | ≥147 | ≥147 |
| 90℃ heat shrink MD | % | ≤3.5 | ≤3.5 | ≤3.5 | ≤3.5 |
| 90℃ heat shrink TD | % | ≤2 | ≤2 | ≤2 | ≤2 |
| 105℃ heat shrink MD | % | ≤5 | ≤5 | ≤5 | ≤5 |
| 105℃ heat shrink TD | % | ≤3 | ≤3 | ≤3 | ≤3 |
| 120℃ heat shrink MD | % | ≤20 | ≤20 | ≤20 | ≤20 |
| 120℃ heat shrink TD | % | ≤15 | ≤15 | ≤15 | ≤15 |
