The main function of the separator is to separate the positive and negative electrodes of the battery to prevent short circuit due to contact between the two electrodes, and also has the function of allowing electrolyte ions to pass through. The separator material is non-conductive, and its physical and chemical properties have a great impact on the performance of the battery.
Specifications：
25µm Battery Separator Celgard 3501
Basic Film Properties
Unit of Measure
Typical Value
Thickness
um
25
Porosity
%
55
Gurley(JIS)
Seconds
200
TD Shrinkage @ 90℃/1 Hour
%
0
MD Shrinkage @ 90℃/1 Hour
%
5
PP Pore Size
(Average Diameter)
um
0.064
Tensile Strength, MD
Kg/cm2
1055
Tensile Strength, TD
Kg/cm2
135
Puncture Strength
Grams
335
![Mg[B(HFIP)4]2](/uploadfile/202401/09/15f1a3930e925703c1b1aaa1833dc2cb_medium.jpg)
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