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Oxide Powder

Micro-porous PVC-SiO2 Separator for Gelled Lead-acid Batteries

Item No.: Tr-separator
The PVC-SiO2 separator that we produced has a richer pore structure, which improves the porosity of the separator, thereby effectively reducing the resistance of the separator and increasing the battery capacity.
Max Pore Diameter: <10um
Porosity: >78%
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Description
PVC-SiO2 separator Properties
 

About PVC-SiO2 Separator: 

The PVC-SiO2 separator that we produced has a richer pore structure, which improves the porosity of the separator, thereby effectively reducing the resistance of the separator and increasing the battery capacity.

 

The PVC battery separator has a porosity greater than 78%, the maximum pore diameter is less than 10 microns, the wetting speed to the electrolyte is within 2 seconds, and the resistance is only 0.0003Ω.dm2, which is one-tenth of that of ordinary separators. TRUNNANO is a trusted global PVC-SiO2 separator supplier. Feel free to inquire about the latest price of PVC-SiO2 separator at any time.
 


Micro-porous PVC-SiO2 Separator for Gelled Lead-acid Batteries

 

Performance of PVC-SiO2 Separator:

The PVC-SiO2 separator has excellent flame-retardant properties and good toughness, is not easy to be damaged during packaging, transportation, and battery assembly, and can be processed into a bag-type separator. The PVC battery separator also has the advantages of not absorbing moisture easily and having a long storage shelf life.


Technical Property of PVC-SiO2 Separator
Moisture Porosity Electric Resistance Tensile Strenght Max Pore Diameter Wetting Speed Reducing Substance
1.5% 84% 0.0005Ω.dm2 3.47 MPa 8um 3.8 s 8.9 mL/g

Applications of PVC-SiO2 Separator :
The PVC-SiO2 separator is used in various polymer materials between the positive and negative electrodes, and it is mainly used in the field of lead-acid batteries.

Storage Condition of PVC-SiO2 Separator
The PVC-SiO2 separator should Store in a dry and cool environment in a sealed place, not exposed to the air, to prevent oxidative agglomeration caused by moisture, affecting the dispersion performance and use effect;

Packing & Shipping of PVC-SiO2 Separator
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
PVC-SiO2 separator packing: vacuum packing, 50 pieces/ carton, or as your request.
PVC-SiO2 separator Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

If you are looking for high-quality battery separator, please feel free to contact us and send an inquiry. ([email protected])

FAQs of PVC-SiO2 Separator

Q: What are the advantages of microporous PVC-SiO2 diaphragms over conventional diaphragms?
A: The PVC substrate gives the diaphragm higher tear resistance and flexibility, maintaining its integrity even under harsh conditions. the SiO2 component enhances resistance to acidic environments and reduces potential aging during long-term use. The ability to maintain physical properties over a wide temperature range ensures the reliability of the battery under different climatic conditions.
 
Q: How to evaluate the quality and suitability of microporous PVC-SiO2 diaphragms?
A: The ideal diaphragm should have an appropriate porosity (typically 40%-60%) and a uniform and consistent small pore size (typically between 0.1-1 micron) to ensure adequate electrolyte retention and good ionic conductivity. The ability of the diaphragm to absorb and retain electrolyte is tested, which is critical to ensure uniform distribution of electrolyte within the battery. Measurement of the degree of deformation of the diaphragm when subjected to external forces and its ability to return to its original state reflects the durability and adaptability of the material. Check whether the diaphragm is compatible with the electrolyte used and other battery components to avoid adverse reactions.
 
Q: What are the challenges that may be encountered during the manufacturing process of microporous PVC-SiO2 diaphragms?
A: Achieving precise and uniform distribution of small pore sizes is one of the technical difficulties and requires strict control of production process parameters, such as extrusion speed and temperature. Ensuring that the two materials, PVC and SiO2, are fully integrated during the mixing process to form a stable and uniform composite structure has a significant impact on the performance of the final product. Maintaining the consistency of diaphragm thickness on the production line is very important to safeguard the balanced performance of all parts inside the cell, and any deviation may lead to problems such as localized overheating.
 
Q: What are the future trends of microporous PVC-SiO2 diaphragms?
A: With the rapid development of the electric vehicle and energy storage markets, there is a growing demand for batteries with higher energy density, which has prompted diaphragm manufacturers to continuously explore new materials and technologies to enhance the overall performance of batteries. Introducing automated production lines and advanced testing equipment to realize refined management and real-time monitoring of the entire process from raw material input to finished product shipment to ensure the stability and consistency of product quality. Developing integrated diaphragms with multiple functions (e.g. fireproofing, waterproofing, self-healing, etc.) to further improve the safety and service life of batteries.
 

 PVC-SiO2 Separator Properties

Other Names battery separator, PVC battery separator
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PVC-SiO2 Separator Information

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