Hydrophilic Battery Separator

Hydrophilic battery separator is a diaphragm which produced and processed by our company through self-developed technology and equipment. This hydrophilic composite diaphragm has the comprehensive advantages of strong liquid absorption, retention capacity and prevention of dendritic puncture. At present, it is mainly used for our own zinc nickel batteries. Our battery separators come in two types: single-layer and composite double-layer, which can meet different needs.

PP dendrite prevention

Resistance to puncture

Strong diaphragm retention rate

High temperature resistance, the diaphragm will not deform when stored at 85℃

The battery prepared by it has long cycle life, low self-discharge and high capacity recovery rate

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Specifications

Double-layer Composite Battery Separator

Maximum width: 580mm
Thickness: 140±2um
Area Density: 70.0±5.0g/m2
Porosity: 37～48%
Air Permeability: 250~550Gurley,100ml/S
Tensile Strength (longitudinal): ≥100MPa
Tensile Strength (Horizontal): ≥25MPa
Expansion Rate(Longitudinal): ≤2.0% (Constant temperature for 2 hours at 90.0±2.0 degrees)
Expansion Rate(Horizontal): ≤1.5% (Constant temperature for 2 hours at 90.0±2.0 degrees)
Puncture Strength: ≥4.5N
Resistivity: ≤0.20Ω*cm2(Check the resistivity after the diaphragm is soaked in 30% KOH for about 1.5 hours)

Notice: The testing environment temperature is 20 ± 5 ° C, and the relative humidity is 55 ± 10%.

Single-layer Hydrophilic Battery Separator

Maximum width: 580mm
Thickness: 40±2um
Area Density: 20.0±3.0g/m2
Porosity: 37～48%
Air Permeability: 450~750Gurley,100ml/S
Tensile Strength (longitudinal): ≥100MPa
Tensile Strength (Horizontal): ≥25MPa
Expansion Rate(Longitudinal): ≤2.0% (Constant temperature for 2 hours at 90.0±2.0 degrees)
Expansion Rate(Horizontal): ≤1.5% (Constant temperature for 2 hours at 90.0±2.0 degrees)
Puncture Strength: ≥4.5N
Resistivity: ≤0.20Ω*cm2(Check the resistivity after the diaphragm is soaked in 30% KOH for about 1.5 hours)

Notice: The testing environment temperature is 20 ± 5 ° C, and the relative humidity is 55 ± 10%.