正华隔膜 锂离子电池聚合物隔膜 2001/2501/3201
规格 | 2001 | 2501 | 3201 | |
透气度(格雷秒) | 20-25 | 20-25 | 23-28 | |
孔隙率(%) | ≥40 | ≥40 | ≥40 | |
穿刺强度(N) | ≥2.8 | ≥3 | ≥3.3 | |
拉伸强度(MPa) | MD | ≥105 | ≥110 | ≥120 |
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 |