1. Main products
Dalian EcoPower Technology Co., Ltd. is the leading domestic single-layer PP membrane manufacturer. After R&D and production technology exploration for many years, Ecopower can provide different types of monolayer PP membrane for lithium ion batterys which are used in mobile phone, notebook, digital cameras and other consumer electronics products, at the same time, due to the higher thermal stability and biaxial tensile strength, the PP membranes are also widely used in the power type lithium ion battery for electric bicycle, electric motorcycle, electric bus.
The monolayer of PP lithium ion battery separator
2. Product features
• Produced using a dry and biaxial orientation strenching process
• Enhanced the two-way mechanical strength
• Suitable distribution of micro-pore size
• High thermal and chemical stability
• Excellent high temperature stability improve the cycling and safety performance fof LIBs
3.specifications of the products
1.SEM
2.Heat shrinkage
3.Thermal shutdown performance （Battery cell short circuit test ）
4.Qualification
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Test project
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Unit
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Metric
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Product Type
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ECO-16
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ECO-20
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ECO-25
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ECO-32
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ECO-40
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Width
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mm
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GB/T6673-2001
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User Spec.+0.5-0
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|
Thickness
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μm
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GB/T6672-2001
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16±2
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20±2
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25±2
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32±2
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40±2
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Air permeability
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Sec/100ml
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ISO5636-5-2003
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300-500
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280-480
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350-550
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400-600
|
500-700
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Porosity
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%
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ECO-WI-QA-008
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35-45
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35-45
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35-45
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35-45
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40-50
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Tensile strength
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MD
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Mpa
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GB/T1040-2006
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≥80
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≥80
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≥80
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≥80
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≥80
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TD
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Mpa
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GB/T1040-2006
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≥25
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≥25
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≥25
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≥25
|
≥25
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Puncture strength
|
g
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ASTM_D4833-00e1
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≥300
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≥300
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≥400
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≥450
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≥500
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Thermal shrinkage
（95℃1h）
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MD
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%
|
GB/T12027-2004
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≤2
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≤2
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≤2
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≤2
|
≤2
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TD
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%
|
GB/T12027-2004
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≤1
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≤1
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≤1
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≤1
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≤1
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The shut-down temperature
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℃
|
—
|
130-140
|
130-140
|
130-140
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130-140
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130-140
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|
Visual inspection
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The test items included membrane surface, end surface, electrostatic, arc.
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