正华隔膜 锂离子电池聚合物隔膜 2002/2502/3202
规格 | 2002 | 2502 | 3202 | |
透气度(格雷秒) | 20-30 | 20-30 | 28-35 | |
孔隙率(%) | ≥38 | ≥38 | ≥38 | |
穿刺强度(N) | ≥3 | ≥3.5 | ≥3.5 | |
拉伸强度(MPa) | MD | ≥110 | ≥120 | ≥130 |
TD | ≥12 | ≥13 | ≥15 | |
90℃/1h热收缩率(%) | MD | ≤3 | ≤3 | ≤3 |
TD | 0 | 0 | 0 | |
105℃/1h热收缩率(%) | MD | ≤5 | ≤5 | ≤5 |
TD | 0 | 0 | 0 | |
弯曲度(mm) | ≤3 | ≤3 | ≤3 |