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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

Test project

Unit

Metric

Product Type

ECO-16

ECO-20

ECO-25

ECO-32

ECO-40

Width

mm

GB/T6673-2001

User Spec.+0.5-0

Thickness

μm

GB/T6672-2001

16±2

20±2

25±2

32±2

40±2

Air permeability

Sec/100ml

ISO5636-5-2003

300-500

280-480

350-550

400-600

500-700

Porosity

%

ECO-WI-QA-008

35-45

35-45

35-45

35-45

40-50

Tensile strength

MD

Mpa

GB/T1040-2006

≥80

≥80

≥80

≥80

≥80

TD

Mpa

GB/T1040-2006

≥25

≥25

≥25

≥25

≥25

Puncture strength

g

ASTM_D4833-00e1

≥300

≥300

≥400

≥450

≥500

Thermal shrinkage
(95℃1h)

MD

%

GB/T12027-2004

≤2

≤2

≤2

≤2

≤2

TD

%

GB/T12027-2004

≤1

≤1

≤1

≤1

≤1

The shut-down temperature

130-140

130-140

130-140

130-140

130-140

Visual inspection

The test items included membrane surface, end surface, electrostatic, arc.

 
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