Product and Application


Focus on the production, sales and R&D of new products and new materials such as three-layer co-extrusion lithium battery diaphragm with different materials of PP and PE, and the same material of PP, PI diaphragm, lithium battery composite diaphragm and solid electrolyte membrane, PVDF coated diaphragm and ceramic coated diaphragm.

Introduction to Product Series

Focus on the production, sales and R&D of new products and materials such as three-layer co-extrusion lithium battery film with different materials of PP and PE and the same material of PP, PI film resistant to the high temperature of 350 °C, lithium battery composite film and solid electrolyte film, PVDF coated film and ceramic coated film. 

Dry uniaxially stretched film Coated film

PP Single-Layer Composite film

Scope of Application:Large lithium-ion battery (electric automobiles, electric motorcycles, electric tools, large energy storage equipment) 

Product Specifications:22um/24um/25um/27um/32um

Product Features:Good consistency of product indicators; Low cost and high cost performance. 1

PP Single-Layer Composite film
PP Single-Layer Composite film

PP Single-Layer Composite film

Thickness

Unit

22μm

24μm

25μm

32μm

Specification

/

22S

24L

25L

32L

air permeability

Sec/100ml

340

350

350

350

Porosity

%

37

40

39

39

Puncture Strength

gf

≥350

≥400

≥400

≥450

Tensile Strength

Kgf/cm²

MD

≥1200

≥1200

≥1200

≥1200

TD

≥110

≥110

≥110

≥110

Heat Shrinkage(MD)

%

105℃/2H

≤2.0

≤2.0

≤2.0

≤2.0

PP/PP/PP Three-Layer Co-Extrusion film

Scope of Application: High-performance lithium-ion battery (3C electronic products, electric automobiles, high-performance polymer battery, high-rate battery, ultra-low temperature battery) 

Product Specifications: 12um/14um/16um/18um/20umProduct

Features: High puncture strength, low short circuit rate; High conductivity and good ion permeability; Faster liquid absorption rate and good liquid retention; 

PP/PP/PP Three-Layer Co-Extrusion film
PP/PP/PP Three-Layer Co-Extrusion film

PP/PP/PP Three-Layer Co-Extrusion film

Thickness

unit

14μm

16μm

18μm

20μm

Specifications

/

14L

16S

16H

18L

20S

20L

20G

Ventilate

Sec/100ml

200

300

270

330

325

320

200

Porosity

%

39

35

40

37

37

39

47

Puncture Strength

gf

≥250

≥250

≥280

≥330

≥360

≥320

≥300

Tensile Strength

Kgf/cm²

MD

≥1200

≥1200

≥1500

≥1000

≥1200

≥1200

≥1200

TD

≥110

≥110

≥180

≥100

≥110

≥110

≥110

Heat Shrinkable(MD)

%

105℃/2H

≤2.0

≤2.0

≤2.0

≤2.0

≤2.0

≤2.0

≤2.0

PP/PE/PP Three-Layer Co-Extrusion film

Scope of Application: High-performance lithium-ion battery (consumer electronics, electric tools, high-performance polymer battery) 

Product Specifications:9um/14um/16um/20um/25um

Product Features:

It can achieve ultra-thin production;
High toughness and superior resistance to falling;
It has a "thermal shutdown function" with high security;
Compared with the foreign three-layer composite film, the advantages of thermal shrinkage are obvious;

It combines the advantages of dry and wet films, and has advantages over wet coating

PP/PE/PP Three-Layer Co-Extrusion film
PP/PE/PP Three-Layer Co-Extrusion film

One less coating layer, 45 degrees more safe

The DSC data shows that the PE melting temperature of the three-layer co-extrusion PP/PE/PP film is quite different from the PP melting temperature. When the internal temperature of the lithium battery exceeds 120 °C, the PE layer begins to close, but the PP layer still has a supporting effect and the film will not break until 165 °C. The difference between the heat-closed hole temperature and the heat-melting temperature is as high as 45 °C, which is equivalent to adding a protective layer on the PE film, truly realizing the "thermal shutdown function" and "double closed-hole insurance", with better safety performance. 

PP/PE/PP Three-Layer Co-Extrusion film

Thickness

Unit

9μm

14μm

16μm

20μm

25μm

Specification

/

9E

14E

16E

20E

25E

air permeability

Sec/100ml

170

350

270

360

400

Porosity

%

35

39

39

39

39

Puncture Strength

gf

≥150

≥200

≥220

≥300

≥330

Tensile Strength

Kgf/cm²

MD

≥1000

≥1000

≥1000

≥1000

≥1000

TD

≥100

≥100

≥100

≥100

≥100

Heat Shrinkage(MD)

%

105℃/2H

≤3.0

≤3.0

≤3.0

≤3.0

≤3.0

C Series Coated Film (Aluminium Oxide)

Scope of Application: Power battery (electric automobiles, electric motorcycles, electric tools), large energy storage equipment, high voltage battery. 

Product Specifications: 12+4C/14+2C/16+4C/20+4C/25+4C 

Product Features:

low water content (≤850ppm), fast matching drying process 

Good thermal shrinkage(150 ° C / H MD: ≤ 5%; TD: ≤ 0.5%).

C Series Coated Film (Aluminium Oxide)

C Series Coated Film (Boehmite)

Scope of Application: High-performance lithium-ion battery (3C electronic products, electric automobiles, high-rate charging and discharging battery)

Product Specifications:12+4C/14+2C/16+4C/20+4C/25+4C

Product Features:

low water content (≤800ppm), fast matching drying process,

High adhesion, no powder falling, good anti-dendritic performance,

small hardness, small wear on the roller and fixture of production line.

C Series Coated Film (Boehmite)

P Series PVDF Coated Film

Scope of Application: 3C electronic products, power batteries.

Product Specifications: (12-25)+(1-4)P (single-sided/double-sided) 

Product Features:

It improves battery bulge deformation, increases hardness and reduces wrinkle risk.

P Series PVDF Coated Film

CP Series Coated Film (Mixed Coating)

Scope of Application:3C electronic products 

Product Specifications: (12-25)+(1-4)P (single-sided/double-sided) 

Product Features:

Not needing multiple coatings, more economical

and safe, higher hardness, smaller deformation

CP Series Coated Film (Mixed Coating)

14+2C

14+4C

3C+14+3C

16+4C

20+3C

20+4C

22+3C

25+3C

25+4C

+(1-5)P

Thickness(μm)

16±2

18±2

20±2

20±2

23±2

24±2

25±2

28±2

29±2

+(1-5)

Surface Density(g/㎡)

11±2

13.5±2

17±3

14.5±2

16±2

16.5±2

16.5±2

19±2

19.5±2

+(0.3-1.2)

air permeability(sec/100cc)

210±50

260±50

300±80

300±50

350±80

340±80

380±80

400±80

400±80

+(10-30)

Puncture Strength(gf)

≥220

≥220

≥220

≥260

≥300

≥300

≥350

≥400

≥400

/

Tensile Strength-MD

Kgf/cm2

≥1100

≥1100

≥800

≥1100

≥1100

≥1100

≥1100

≥1100

≥1100

/

Tensile Strength-TD

Kgf/cm2

≥100

≥100

≥100

≥100

≥100

≥100

≥100

≥100

≥100

/

Thermal Shrinkage℃/1H-MD(%)

≦3.0

≦3.0

≦2.0

≦2.0

≦2.0

≦3.0

≦2.0

≦2.0

≦2.0

≤3

Thermal Shrinkage℃/1H-TD(%)

≦0.5

≦0.5

≦0.5

≦0.5

≦0.5

≦0.5

≦0.5

≦0.5

≦0.5

≤0.5