80% High Porosity Polyimide FIber separator for lithium battery

No.

Item

Sub option

Unit

Technical Parameters

1

Length

m

≥500

2

Thickness

um

30

3

Density

g/cm3

≥0.20

4

Operating temperature range

℃

-160~+350

5

Tensile Strength

MD

MPa

≥20

TD

MPa

≥15

6

Elongation at break

MD

%

≥30

TD

%

≥30

7

Maximum force

MD

N/15cm

≥10

TD

N/15cm

≥10

8

Needle strength

N

≥3

9

Porosity

%

≥80

10

Average pore size

um

28±0.2

11

Liquid absorption

%

≥96

12

Breathability

s

≤1

13

Usage

Mainly used for primary lithium battery and super capacitor products.