Product Center
A full range of fiberglass functional felts—crafted with meticulous care, backed by uncompromising quality.
Battery separator felt
Battery separator felt is manufactured from high‑quality alkali‑free glass fibers using a wet‑forming process. It boasts excellent liquid absorption, air permeability, electrical insulation, and corrosion resistance, with a loose, uniform texture free of impurities. Primarily used as an internal separator in batteries, it effectively isolates the positive and negative electrodes to prevent short circuits while absorbing electrolyte to ensure normal charge–discharge performance. It is suitable for various applications, including lead‑acid and lithium‑ion batteries, and offers a long service life and stable performance.
- Product Description
- Product Video
-
1. Product Description
Battery separator felt is manufactured from high‑quality alkali‑free glass fibers using a wet‑forming process. It exhibits excellent liquid absorption, air permeability, electrical insulation, and corrosion resistance, with a loose, uniform texture free of impurities. Primarily used as an internal separator in batteries, it effectively isolates the positive and negative electrodes to prevent short circuits while absorbing electrolyte to ensure normal charge–discharge performance. It is suitable for various applications, including lead‑acid and lithium‑ion batteries, and offers a long service life and stable performance.
2. Core Explanation
• Highly absorbent, it can rapidly adsorb and retain the electrolyte, ensuring normal charge–discharge performance and enhancing the battery’s endurance.
• Excellent insulation performance effectively isolates the battery’s positive and negative terminals, preventing short circuits and ensuring safe battery operation.
• Resistant to electrolyte corrosion, with excellent resistance to aging and mechanical damage, it is well-suited to the complex internal environment of storage batteries and offers a long service life.
• It has a loose, uniform texture and excellent air permeability, ensuring unimpeded electrolyte flow, while remaining free of impurities and non‑contaminating the battery’s interior.
3. Technical Parameters
Parameter Name Parameter value Material Alkali-free glass fiber (high purity, free of impurities) Basis weight 40–100 g/m², customizable upon request. Thickness 0.2–0.5 mm, customizable upon request Width 800–1500 mm, custom slitting sizes available Roll length 100 m per roll, 200 m per roll; custom lengths available upon request. Color White, gray (customizable) Liquid absorption rate ≥300% (of its own weight) Insulation resistance ≥10¹¹Ω Corrosion resistance Resistant to electrolyte corrosion; after 72 hours of immersion, no damage or deformation. Breathability Air permeability ≥ 500 ml/(cm²·min)
Product keywords:
Battery separator felt
Related Products
Product Message
*Note: Please ensure that all information is accurate and that communication remains smooth. We will contact you as soon as possible.