80% High Porosity Polyimide FIber separator for lithium battery

No.	Item	Sub option	Unit	Technical Parameters	Remarks
1	Length		m	≥500
2	Thickness		um	20/25/30/	Deviation:±1.50
3	Density		g/cm3	≥0.20	Deviation:±0.01
4	Operating temperature range		℃	-160~+350
5	Tensile Strength	MD	MPa	≥20
5	Tensile Strength	TD	MPa	≥15
6	Elongation at break	MD	%	≥30
6	Elongation at break	TD	%	≥30
7	Maximum force	MD	N/15cm	≥10
7	Maximum force	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	SEM picture
14	Usage	Mainly used for primary lithium battery and super capacitor products.

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