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A battery separator does not attract attention like plates, paste, or grids do. Yet in real production, it is often the quiet layer that decides whether a battery runs smoothly, overheats early, or fails too soon. Our Microporous Polyethylene Battery Separator Jumbo Roll is developed for that exact responsibility.
Built for lead-acid batteries, this separator forms a reliable barrier between positive and negative plates while still allowing efficient ionic movement through its microporous structure. That balance matters. Too much resistance slows performance. Too little structural integrity invites deformation, short circuits, and costly rejects. This product is engineered to sit in that critical middle ground where conductivity, mechanical strength, and chemical stability work together.
Its ribbed surface options are not just visual details. They help manage spacing, electrolyte distribution, oxygen transfer, and assembly behavior inside the battery. The material system is designed to support long service life under demanding charging and discharging conditions. In the workshop, that means smoother processing. In the battery, that means more dependable output, lower failure risk, and better durability over time.
Reduce internal short-circuit risk by maintaining a stable physical barrier between plates
Support efficient ion transport through a high-porosity microporous structure
Improve battery consistency with controlled thickness, rib design, and dimensional stability
Extend service life by reducing oxidation-related cracking and helping the battery operate more evenly
Lower production loss through better mechanical strength and improved handling during conversion and assembly
Fit different battery designs with multiple appearance and rib configurations
The separator is designed for low electrical resistance, which supports better current flow.
The material offers high puncture resistance and high elongation, helping it tolerate demanding production and operating conditions.
The roll format is practical for converters and battery manufacturers who want continuous processing and stable supply.
The product is suitable for applications where batteries face frequent cycling, vibration, temperature variation, or extended standby duty.
A good separator is not simply thin plastic between plates. It is the layer that quietly protects performance every day. When the battery must start reliably on cold mornings, support repeated charging, or hold standby power without sudden decline, separator quality stops being a detail and becomes a decision.
Item | Unit | Parameter |
|---|---|---|
Basic Thickness | mm | 0.200±0.030; 0.250±0.030 |
Major Rib Height | mm | (0.80–1.30)±0.05 |
Puncture Resistance | N | ≥8 |
Elongation (CMD) | % | ≥300 |
Electrical Resistance | Ω·sq·dm | ≤0.0010 (Standard); ≤0.0015 (Special) |
Porosity | % | ≥55 |
B/W Oil Content | % | ≥8 |
O/W Oil Content | % | 12≤Total≤18 |
Moisture Content | % | ≤3.0 |
Dimension Stability | % | ≤1.0 |
Wetting Time | s | ≤60 |
Acid Weight Loss | % | ≤4.0 |
Fe Content | % | ≤0.010 |
Cl Content | % | ≤0.030 |
Reducing Substance | mL/g | ≤10 |
Oxidation Stability (After 48h) | % | (CMD) ≥100 |
These values are retained from the current product and remain the technical basis of this rewritten page. For buyers, the meaning is straightforward: the separator is built to deliver stable conductivity, reliable wetting, controlled purity, and strong resistance to mechanical and chemical stress. Those are the performance foundations that matter in repeatable battery manufacturing.
Base polymer: Polyethylene
Key functional system: Microporous structure for ion transport
Performance direction: Low resistance, controlled pore volume, chemical stability, and physical durability
Production intent: Stable conversion into large rolls and downstream battery assembly formats
The strength of this separator is not based on one single feature. It comes from how the material system works as a whole. In lead-acid batteries, the separator must do three jobs at once: stop plate contact, allow ionic movement, and hold electrolyte in a stable working environment. If one of those three functions is weak, battery reliability suffers.
This is why microporous PE separators remain a mainstream choice in modern lead-acid battery design. They offer a practical combination of flexibility, chemical resistance, processability, and thermal behavior. In real use, that means fewer surprises on the line and more confidence in the finished battery.
Smooth surface on one side + mini rib on the other side
Sample options: 10 ribs/cm or 12 ribs/cm
Mini rib on both sides
Sample options: 7, 8, or 12 ribs/cm
Smooth surface on one side + straight rib on the other side
Sample rib distances: 4, 5, 7, 10, or 12 mm
Smooth surface on one side + twill rib on the other side
Sample rib distances: 5 or 7 mm
Mini rib on one side + straight rib on the other side
Sample options: 6, 7, 9, or 12 mini ribs/cm with rib distances of 4, 5, 7, or 12 mm
Mini rib on one side + twill rib on the other side
Sample options: 4, 6, 7, or 12 mini ribs/cm with rib distances of 7, 8, 10, or 12 mm
Straight rib on one side + twill rib on the other side
Sample option: 5 mm rib distance
PE envelope separator option
Different battery lines do not ask the separator to behave the same way. Some need better spacing control. Some need easier mechanical assembly. Some need profiles tuned for oxidation resistance or electrolyte behavior. That is why surface geometry matters.
These options allow the separator to be matched more closely to plate structure, assembly method, and battery duty profile. Instead of forcing one generic format into every design, you can choose a surface pattern that better supports your production target and final battery performance.
Automotive lead-acid batteries
Starting, lighting, and ignition battery systems
Start-stop and high-cycle battery designs
Motive power batteries
Electric mobility support systems
Solar energy storage
UPS and backup power systems
Telecom and standby applications
Marine and industrial battery systems
This product is suitable for applications where separator performance affects uptime, safety, and service life. In an automotive battery, that may mean more reliable starts and improved cycling behavior. In a standby system, it may mean steadier long-duration operation. In industrial environments, it helps support durability under vibration, temperature variation, and repetitive charge-discharge work.
For buyers, the key point is simple: this separator is not limited to a narrow niche. It is designed for broad lead-acid battery use where dependable internal separation and low-resistance operation are essential.
Parameter retention with real product grounding
We work from actual product data, not vague marketing language.
Manufacturing-oriented design
Jumbo roll supply and multiple structure options support practical converting and assembly needs.
Stable quality focus
The separator is developed around the performance indicators battery producers care about most: resistance, porosity, puncture strength, wetting, and dimensional stability.
Customization flexibility
Rib profile and appearance options allow better adaptation to different product lines.
Clear communication
We present materials, structure, applications, and specifications in a way that makes evaluation easier for technical and purchasing teams.
When buyers choose a separator supplier, they are not just buying a roll. They are choosing how much process stability they want, how much variation they can tolerate, and how confidently they can scale output. We understand that pressure. That is why our approach focuses on usable specifications, production logic, and application fit instead of empty claims.
It keeps positive and negative plates apart to prevent internal short circuits while allowing ionic movement through its porous structure. It also helps retain electrolyte and supports stable internal battery reactions. In practice, it plays a direct role in safety, consistency, and battery life.
Lower resistance supports more efficient current flow inside the battery. That can contribute to better discharge behavior, improved charging response, and lower internal energy loss. For manufacturers, it also helps support more stable performance across production batches.
Ribs are not decorative. They influence spacing, electrolyte management, oxygen transfer behavior, and assembly performance. A suitable rib profile can reduce cracking risk, improve structural support, and help the separator perform more predictably inside the battery.
Yes. The jumbo roll format is designed for continuous downstream processing and is better suited for larger converting and battery production operations than short laboratory rolls. It helps improve handling efficiency and supply continuity.
Yes. Multiple surface structures and PE envelope options are available. This helps adapt the separator to different battery constructions, assembly methods, and application requirements.
It is primarily designed for lead-acid batteries, including automotive, motive power, standby, solar storage, UPS, and other related systems where plate separation, chemical resistance, and stable internal conductivity are required.
A battery separator does not attract attention like plates, paste, or grids do. Yet in real production, it is often the quiet layer that decides whether a battery runs smoothly, overheats early, or fails too soon. Our Microporous Polyethylene Battery Separator Jumbo Roll is developed for that exact responsibility.
Built for lead-acid batteries, this separator forms a reliable barrier between positive and negative plates while still allowing efficient ionic movement through its microporous structure. That balance matters. Too much resistance slows performance. Too little structural integrity invites deformation, short circuits, and costly rejects. This product is engineered to sit in that critical middle ground where conductivity, mechanical strength, and chemical stability work together.
Its ribbed surface options are not just visual details. They help manage spacing, electrolyte distribution, oxygen transfer, and assembly behavior inside the battery. The material system is designed to support long service life under demanding charging and discharging conditions. In the workshop, that means smoother processing. In the battery, that means more dependable output, lower failure risk, and better durability over time.
Reduce internal short-circuit risk by maintaining a stable physical barrier between plates
Support efficient ion transport through a high-porosity microporous structure
Improve battery consistency with controlled thickness, rib design, and dimensional stability
Extend service life by reducing oxidation-related cracking and helping the battery operate more evenly
Lower production loss through better mechanical strength and improved handling during conversion and assembly
Fit different battery designs with multiple appearance and rib configurations
The separator is designed for low electrical resistance, which supports better current flow.
The material offers high puncture resistance and high elongation, helping it tolerate demanding production and operating conditions.
The roll format is practical for converters and battery manufacturers who want continuous processing and stable supply.
The product is suitable for applications where batteries face frequent cycling, vibration, temperature variation, or extended standby duty.
A good separator is not simply thin plastic between plates. It is the layer that quietly protects performance every day. When the battery must start reliably on cold mornings, support repeated charging, or hold standby power without sudden decline, separator quality stops being a detail and becomes a decision.
Item | Unit | Parameter |
|---|---|---|
Basic Thickness | mm | 0.200±0.030; 0.250±0.030 |
Major Rib Height | mm | (0.80–1.30)±0.05 |
Puncture Resistance | N | ≥8 |
Elongation (CMD) | % | ≥300 |
Electrical Resistance | Ω·sq·dm | ≤0.0010 (Standard); ≤0.0015 (Special) |
Porosity | % | ≥55 |
B/W Oil Content | % | ≥8 |
O/W Oil Content | % | 12≤Total≤18 |
Moisture Content | % | ≤3.0 |
Dimension Stability | % | ≤1.0 |
Wetting Time | s | ≤60 |
Acid Weight Loss | % | ≤4.0 |
Fe Content | % | ≤0.010 |
Cl Content | % | ≤0.030 |
Reducing Substance | mL/g | ≤10 |
Oxidation Stability (After 48h) | % | (CMD) ≥100 |
These values are retained from the current product and remain the technical basis of this rewritten page. For buyers, the meaning is straightforward: the separator is built to deliver stable conductivity, reliable wetting, controlled purity, and strong resistance to mechanical and chemical stress. Those are the performance foundations that matter in repeatable battery manufacturing.
Base polymer: Polyethylene
Key functional system: Microporous structure for ion transport
Performance direction: Low resistance, controlled pore volume, chemical stability, and physical durability
Production intent: Stable conversion into large rolls and downstream battery assembly formats
The strength of this separator is not based on one single feature. It comes from how the material system works as a whole. In lead-acid batteries, the separator must do three jobs at once: stop plate contact, allow ionic movement, and hold electrolyte in a stable working environment. If one of those three functions is weak, battery reliability suffers.
This is why microporous PE separators remain a mainstream choice in modern lead-acid battery design. They offer a practical combination of flexibility, chemical resistance, processability, and thermal behavior. In real use, that means fewer surprises on the line and more confidence in the finished battery.
Smooth surface on one side + mini rib on the other side
Sample options: 10 ribs/cm or 12 ribs/cm
Mini rib on both sides
Sample options: 7, 8, or 12 ribs/cm
Smooth surface on one side + straight rib on the other side
Sample rib distances: 4, 5, 7, 10, or 12 mm
Smooth surface on one side + twill rib on the other side
Sample rib distances: 5 or 7 mm
Mini rib on one side + straight rib on the other side
Sample options: 6, 7, 9, or 12 mini ribs/cm with rib distances of 4, 5, 7, or 12 mm
Mini rib on one side + twill rib on the other side
Sample options: 4, 6, 7, or 12 mini ribs/cm with rib distances of 7, 8, 10, or 12 mm
Straight rib on one side + twill rib on the other side
Sample option: 5 mm rib distance
PE envelope separator option
Different battery lines do not ask the separator to behave the same way. Some need better spacing control. Some need easier mechanical assembly. Some need profiles tuned for oxidation resistance or electrolyte behavior. That is why surface geometry matters.
These options allow the separator to be matched more closely to plate structure, assembly method, and battery duty profile. Instead of forcing one generic format into every design, you can choose a surface pattern that better supports your production target and final battery performance.
Automotive lead-acid batteries
Starting, lighting, and ignition battery systems
Start-stop and high-cycle battery designs
Motive power batteries
Electric mobility support systems
Solar energy storage
UPS and backup power systems
Telecom and standby applications
Marine and industrial battery systems
This product is suitable for applications where separator performance affects uptime, safety, and service life. In an automotive battery, that may mean more reliable starts and improved cycling behavior. In a standby system, it may mean steadier long-duration operation. In industrial environments, it helps support durability under vibration, temperature variation, and repetitive charge-discharge work.
For buyers, the key point is simple: this separator is not limited to a narrow niche. It is designed for broad lead-acid battery use where dependable internal separation and low-resistance operation are essential.
Parameter retention with real product grounding
We work from actual product data, not vague marketing language.
Manufacturing-oriented design
Jumbo roll supply and multiple structure options support practical converting and assembly needs.
Stable quality focus
The separator is developed around the performance indicators battery producers care about most: resistance, porosity, puncture strength, wetting, and dimensional stability.
Customization flexibility
Rib profile and appearance options allow better adaptation to different product lines.
Clear communication
We present materials, structure, applications, and specifications in a way that makes evaluation easier for technical and purchasing teams.
When buyers choose a separator supplier, they are not just buying a roll. They are choosing how much process stability they want, how much variation they can tolerate, and how confidently they can scale output. We understand that pressure. That is why our approach focuses on usable specifications, production logic, and application fit instead of empty claims.
It keeps positive and negative plates apart to prevent internal short circuits while allowing ionic movement through its porous structure. It also helps retain electrolyte and supports stable internal battery reactions. In practice, it plays a direct role in safety, consistency, and battery life.
Lower resistance supports more efficient current flow inside the battery. That can contribute to better discharge behavior, improved charging response, and lower internal energy loss. For manufacturers, it also helps support more stable performance across production batches.
Ribs are not decorative. They influence spacing, electrolyte management, oxygen transfer behavior, and assembly performance. A suitable rib profile can reduce cracking risk, improve structural support, and help the separator perform more predictably inside the battery.
Yes. The jumbo roll format is designed for continuous downstream processing and is better suited for larger converting and battery production operations than short laboratory rolls. It helps improve handling efficiency and supply continuity.
Yes. Multiple surface structures and PE envelope options are available. This helps adapt the separator to different battery constructions, assembly methods, and application requirements.
It is primarily designed for lead-acid batteries, including automotive, motive power, standby, solar storage, UPS, and other related systems where plate separation, chemical resistance, and stable internal conductivity are required.
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