battery material
Polyethylene separator for lithium battery
Item Number : BC-18
Price varies based on specs and customizations
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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
| Material: | SK single layer PE film |
| thickness: | 16μm |
| width: | 115mm |
| Air permeability: | 200s |
| Porosity: | 44% |
| Heat shrinkage rate: | Vertical 3% Horizontal 1% |
| tensile strength: | Vertical 1200kgf/cm2 Horizontal 1200kgf/cm2 |
| Storage conditions: | The best storage environment temperature is 25±3°C, humidity is 30%-70%, moisture-proof |
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.
FAQ
What are the main types of battery materials?
What is a battery case?
What are the benefits of using battery boxes?
What safety precautions should be followed when using battery boxes?
What considerations should be made for battery case gaskets?
What are the applications of battery materials?
What is the role of battery case gaskets?
How do battery materials enhance battery performance?
What are lithium-air battery cases?
What is the role of polyethylene separators in lithium-ion batteries?
How should button battery cases be chosen for specific applications?
Why are conductive carbon cloths/papers/felts important in battery applications?
What are the advantages of using aluminum-plastic flexible packaging films for lithium batteries?
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What is the function of battery internal resistance testers?
Why are nickel-aluminum tabs important in battery manufacturing?
4.8
out of
5
The delivery was incredibly fast, arriving within a few days of placing the order. The quality of the separator is exceptional and has significantly improved the performance of our lithium-ion batteries.
4.7
out of
5
The polyethylene separator has proven to be an excellent investment. It has extended the lifespan and efficiency of our batteries, making them more reliable and cost-effective.
4.9
out of
5
The separator's lateral 'zero' shrinkage feature is a game-changer. It has greatly reduced the risk of internal short circuits, enhancing the safety and stability of our batteries.
4.6
out of
5
The polyethylene separator's high chemical and thermal stability has been impressive. It has maintained its integrity even under extreme conditions, ensuring consistent performance and longevity.
4.8
out of
5
The separator's consistent pore structure has significantly improved the capacity and cycle life of our batteries. We've witnessed a noticeable increase in energy storage and reduced degradation over time.
4.9
out of
5
The versatility of the polyethylene separator is commendable. Its compatibility with various battery types has made it an indispensable component in our research and development initiatives.
4.7
out of
5
The excellent oxidation resistance of the separator has been instrumental in enhancing the cycle and trickle charge performance of our batteries. It has resulted in improved durability and reliability.
4.8
out of
5
The polyethylene separator's chemical resistance has been remarkable. It has shown exceptional resilience against acids, alkalis, and most chemicals, ensuring long-term stability and performance.
4.6
out of
5
The separator's lateral 'zero' shrinkage feature has been a lifesaver. It has eliminated internal short circuits and maintained dimensional integrity at high temperatures, significantly improving the safety and reliability of our batteries.
4.9
out of
5
The polyethylene separator's exceptional quality has exceeded our expectations. It has enhanced the cycle life and capacity of our batteries, leading to improved performance and extended lifespan.
4.7
out of
5
The separator's consistent pore structure has been a game-changer for our research. It has enabled us to achieve higher energy densities and improved rate capabilities, pushing the boundaries of battery technology.
4.8
out of
5
The versatility of the polyethylene separator has been a boon to our diverse battery applications. Its compatibility with different battery types has allowed us to streamline our manufacturing processes and improve efficiency.
4.6
out of
5
The separator's excellent oxidation resistance has been crucial in extending the lifespan of our batteries. It has minimized capacity fade and maintained high performance over extended periods.
4.9
out of
5
The polyethylene separator's chemical resistance has been a lifesaver in our harsh operating conditions. It has withstood exposure to corrosive chemicals and extreme temperatures, ensuring uninterrupted performance.
4.7
out of
5
The separator's lateral 'zero' shrinkage feature has been a major breakthrough for our battery safety. It has eliminated internal short circuits and thermal runaway risks, making our batteries safer and more reliable.
4.8
out of
5
The polyethylene separator's high-temperature resistance has been a game-changer for our high-power applications. It has enabled us to push the limits of battery performance without compromising safety and reliability.
4.6
out of
5
The separator's exceptional quality has been a major factor in our successful battery development. It has consistently delivered high performance and reliability, making it an indispensable component in our cutting-edge battery systems.
4.9
out of
5
The polyethylene separator's consistent pore structure has been a major breakthrough for our research. It has enabled us to achieve unprecedented levels of energy density and cycle life, pushing the boundaries of battery technology.
4.7
out of
5
The separator's versatility has been a major advantage for our diverse battery applications. Its compatibility with different battery chemistries and configurations has allowed us to streamline our manufacturing processes and reduce costs.
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