Li-ion Battery Polypropylene PP Separator,Length:400m,  width:50mm, Thicness:25um.

 

Name		PP(polypropylene) Separator
Item		Unit	Type
			T-PP-25
Thickness		um	25
Air Permeability		sec/100ml	520
Factor of porosity		%	42
Tensile Strength	MD	Kg/cm2	>1200
	TD	Kg/cm2	>130
Puncture Strength		g	>450
Thermal contraction (90℃ 1h)	MD	%	≤2.5
	TD	%	≤0.5
Thermal contraction  (105℃ 1h)	MD	%	≤4
	TD	%	≤1
Obturator temperature		℃	153