Lithium-ion battery separator longitudinal stretching production line
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Lithium-ion battery separator longitudinal stretching production line
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Product Description
The primary function of the lithium‑battery longitudinal‑stretch separator is to electrically isolate the positive and negative electrodes, preventing direct contact and short circuits. The micropores in the separator allow lithium ions to pass through, thereby establishing the charge–discharge circuit. As a core, critical component of lithium batteries, the separator also represents a high‑value‑added material with significant technological barriers. Its performance directly determines key battery characteristics, including interfacial structure, internal resistance, capacity, cycle life, and safety.
Product Features: Lithium-ion battery separators are polymeric functional materials with nanoscale micropores. Rechargeable lithium-ion batteries offer high specific energy, long cycle life, and no memory effect, while also providing safety, reliability, and rapid charge–discharge capabilities. These characteristics align with the growing global demand for energy efficiency and environmental sustainability, leading to a rapid increase in their adoption across various industries.
1. Excellent thickness uniformity and uniform micropore distribution, which contribute to the consistency of lithium-ion batteries.
2. Low micropore tortuosity, excellent air permeability, strong liquid‑retention capability, and low internal resistance.
3. High-temperature resistant, with no transverse thermal shrinkage, a high film‑bursting temperature, and excellent safety performance;
4. High tensile strength and excellent mechanical properties;
5. The standard width of the production line ranges from 1,000 to 2,400 mm; specific dimensions are determined by the manufacturing process and can be customized.
Main applications: power lithium-ion batteries for electric vehicles, electric motorcycles, electric bicycles, power tools, and other systems; large-scale energy storage lithium-ion batteries; and various types of consumer‑grade lithium-ion batteries.
Dry‑process uniaxial stretching production line parameters for lithium‑ion battery separators (for details, please consult a sales engineer).
| Aircraft model | Single-screw GWS75 | Single-screw GWS90 | Flat double GWP75 | Single-screw GWS75 / 90 / 75 |
| Raw material | PP, PE | PP, PE | PP, PE | PP, PE |
| Product Structure | Single-layer | Single-layer | Single-layer | A / B / A |
| Product width | 1000mm | 1000mm | 1000mm | 1000mm |
| Product thickness | 16 µm - 25 µm | 16 µm - 25 µm | 16 µm - 25 µm | 12um - 38um |
| Extrusion output | 70KG/H - 100KG/H | 90KG/H - 110KG/H | 90KG/H - 110KG/H | 100KG/H - 130KG/H |
| Linear velocity | 100 m/min | 100 m/min | 100 m/min | 100 m/min |
Application areas
Automotive sector
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Photovoltaic sector
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Product Inquiry
Company email:info@gwell.cn
Nantong Company Address: No. 69, Hongrong Road, Chongchuan District, Nantong City
Suzhou Company Address: No. 16, Donglin Lianfa Industrial Park, Guojia Road, Chengxiang Town, Taicang, Suzhou
Yancheng Company Address: No. 90, Shenfeng Road, Dafeng District, Yancheng City
Shanghai Company Address: Room 2205A, 22nd Floor, No. 28 Maji Road, China (Shanghai) Pilot Free Trade Zone
Nanjing Company Address: No. 8, Huyue East Road, Longchi Subdistrict, Liuhe District, Nanjing City, Jiangsu Province
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