PP Battery Separator

1

Electrical resistance  (Ω dm²)

≤0.0015

0.0012

2

Tensile Strength     (Mpa)

≥3.0

4.2

3

Aperture        (Um)

≤36

32

4

Porosity           ( %)

≥65

78

5

Moisture content  (%)

≤1.0

0.86

6

Fe Content      (%)

≤0.004

0.003

7

Cl Content      (%)

≤0.003

0.002

8

Reduction of KmnO4 compound (ml/g)

≤15

13

9

Wetting Time          (S)

≤5.0

4

10

Acid Weight Loss      (%)

≤1.0

0.85

11

Foaminess

Bubbles cannot completely cover the surface of sulfuric acid solution

YES

12

Dimensional Stability     (%)

≤1.0

0.92

13

Layering

No stratification

YES