Li-Ion Battery Separator Film

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Description

Lithium-ion battery separator is a kind of microporous membrane, colors ranges white to beige. It is made of polyolefin resin with wet drawing process. The product has good mechanical property and chemical stability.

It is used between positive and negative electrode of lithium ion batteries to prevent short circuit.

Specifications:

For 20 µm Thickness Separator Film:

 

 

Appearance Ivory-White
Thickness 20 ± 2 µm
Gas permeability 250 – 550 Sec/100ml
Porosity 38 – 44 %
Puncturing Strength > 300 g
Tensile strength MD > 90 Mpa
Tensile strength TD > 100 Mpa
Film close temperature ≤ 135 0C
Film break temperature ≥ 147 0C
90 0C heat shrink MD ≤ 3.5 %
90 0C heat shrink TD ≤ 2 %
105 0C heat shrink MD ≤ 5 %
105 0C heat shrink TD ≤ 3 %
120 0C heat shrink MD ≤ 20 %
120 0C heat shrink TD ≤ 15 %

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For 16 µm Thickness Separator Film:

 

Appearance Ivory-White
Thickness 16 ± 2 µm
Gas permeability 250 – 550 Sec/100ml
Porosity 38 – 44 %
Puncturing Strength > 300 g
Tensile strength MD > 90 Mpa
Tensile strength TD > 100 Mpa
Film close temperature ≤ 135 0C
Film break temperature ≥ 147 0C
90 0C heat shrink MD ≤ 3.5 %
90 0C heat shrink TD ≤ 2 %
105 0C heat shrink MD ≤ 5 %
105 0C heat shrink TD ≤ 3 %
120 0C heat shrink MD ≤ 20 %
120 0C heat shrink TD ≤ 15 %
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