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  • Lithium Battery Separator Polypropylene PP Film Battery Membranes
  • Lithium Battery Separator Polypropylene PP Film Battery Membranes
  • Lithium Battery Separator Polypropylene PP Film Battery Membranes
  • Lithium Battery Separator Polypropylene PP Film Battery Membranes
Lithium Battery Separator Polypropylene PP Film Battery MembranesLithium Battery Separator Polypropylene PP Film Battery MembranesLithium Battery Separator Polypropylene PP Film Battery MembranesLithium Battery Separator Polypropylene PP Film Battery Membranes

Lithium Battery Separator Polypropylene PP Film Battery Membranes

  • Model: Battery Separator
  • Material: Polypropylene Membrane
  • Thickness: 16um 20um 25um
  • Delivery Time: 3 days
  • Product description: In the structure of the lithium battery, separator is one of the key component. The properties of the separator determines of interface structure, resistance of battery,directly influencing the capaci
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Lithium Battery PP Separator Polypropylene Membranes for Lab


In the structure of the lithium battery, separator is one of the key component. The properties of the separator determines of interface structure, resistance of battery,directly influencing the capacitance, circulation,safety and other properties. High performance separator is very important to improve the comprehensive performance of the lithium battery.


The main function of the separator is to separate the positive and negative pole, in case of the short-circuiting due to the contact of the two poles. Furthermore, it also help the electrolyte pass through. The material of the separator is non-conductive. Its physical and chemical properties have a great impact on battery performance.The separator will be different according to types of batteries. For Lithium battery series, the electrolyte is an organic solvent system,which is requires a solvent resistance separator material,generally using high strength porous polyolefin film.


20um Separator

Term

Unit

Inspection value

Appearance

Ivory-white

Thickness

micron

20±2

Gas permeability

Sec/100ml

350-550

Porosity

%

38-44

Puncturing Strength

g

>300

Tensile strength MD

Mpa

>90

Tensile strength TD

Mpa

>100

Film close temperature

≤135

Film break temperature

≥147

90℃ heat shrink MD

%

≤3.5

90℃ heat shrink TD

%

≤2

105℃ heat shrink MD

%

≤5

105℃ heat shrink TD

%

≤3

120℃ heat shrink MD

%

≤20

120℃ heat shrink TD

%

≤15


25um Separator

Name

PP(polypropylene) Separator

Item

Unit

Type

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

PP Separator for Lithium ion Battery

PP Membrane Lithium Battery Separator Film for Lab

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