Polyethylene Separator for Lithium Battery

Introduce

Polyethylene separators are produced using wet and dry stretching methods, offering flexibility and diverse material options for various applications. The temperature resistance of PE and PP differs, with PE having lower resistance and PP having higher resistance. PP also has a lower density and higher melting point compared to PE. Separator strength varies with the production method, with wet biaxial stretching yielding superior longitudinal and transverse strength. PE's sensitivity to ambient pressure is a consideration in certain applications, affecting performance and suitability in different industries.

The polyethylene separator is a key component of lithium-ion batteries, located between the positive and negative electrodes. They allow the passage of lithium ions while inhibiting electron transport. The performance of the separator affects the capacity, cycle and safety of the battery, and thus is critical to the overall performance of the battery.

Detail & Parts

Technical specifications

The products we show are available in different sizes and custom sizes are available on request.

Advantages

• Chemical Resistance: Polyethylene separators exhibit excellent resistance to acids, alkalis and most chemicals.
• Consistent pore structure: The separator maintains a consistent pore structure with high chemical and thermal stability.
• Versatility: They are available in various battery types, making them suitable for different applications.
• Oxidation resistance: The polyethylene separator has excellent oxidation resistance, ensuring excellent cycle and trickle charge performance.
• Lateral "zero" shrinkage: The transverse "zero" shrinkage of the separator reduces internal short circuits and enhances dimensional integrity at high temperatures.

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