AGM Battery Separators · Nanjing, China · Est. 1993
The glass mat inside the battery
Alpha Beta manufactures glass microfiber separators and pasting paper for lead-acid batteries — 18,000 tonnes a year, from three plants, to battery makers on five continents.
02 · Under the microscope
Separator performance is decided at fiber level
We hold diameter uniformity to ≤0.5 μm — and verify it with third-party SEM, ICP and BET analysis, not just our own lab.
03 · Product range
Seven series. One for every battery you build
Automotive Start-Stop
Dual fiber-diameter system — +100% puncture resistance vs conventional AGM constructions.
0.8–1.5 mm @100 kPa220±10 g/m²·mm 02SLI
The workhorse separator for automotive starting, lighting and ignition batteries.
0.8–1.5 mm @100 kPa220±10 g/m²·mm 03Motorcycle
High-rate separator for motorcycle ignition and lighting batteries, miner’s lamps and electric toys.
1.0–1.5 mm @100 kPa210±10 g/m²·mm 04Motive Power
Deep-cycle separator for e-bike, low-speed EV, forklift and golf cart traction batteries.
0.5–1.2 mm @100 kPa215±10 g/m²·mm 05Energy Storage & High Temperature
Separator for clean-energy storage and telecom batteries operating in high-temperature environments.
1.5–3.0 mm @10 kPa165±10 g/m²·mm 06Telecom & UPS
Float-service separator for telecom, UPS, grid and railway backup batteries.
1.5–3.0 mm @10 kPa150±10 g/m²·mm 07Pasting Paper
Glass fiber pasting paper that wraps plates to support wet paste in modern plate manufacturing.
0.05–0.40 mm @100 kPa180±10 g/m²·mm04 · Quality
Certified where it matters, verified by third parties
- IATF 16949:2016
- Nanjing plant — Certificate No. 0560525 (CQC), valid to 2027-12-27
- IATF 16949:2016
- Inner Mongolia plant — Certificate No. IATF 0535701 (SIRIM QAS)
- IATF 16949:2016
- Chuzhou plant — Certificate No. 0607228 (CQC), valid to 2029-06-23
- ISO 9001
- Quality management system held since 2002
- RoHS · REACH
- Compliant — declarations available with every shipment
- HCW system
- In-house cleaning technology that eliminates inter-fiber floccule contamination at the source — before/after SEM comparisons are part of our standard technical package
05 · Manufacturing
Three plants. New capacity came online in 2025
Headquarters & separator plant
Founding site: separator production, R&D and the central QC laboratory.
Glass microfiber, self-supplied
Our own raw-material base produces the glass microfiber behind every separator — quality and supply secured at the source, with a second IATF 16949 certified separator plant.
Fully automated new plant
Commissioned April 2025: automated lines and intelligent warehousing, adding 8,000 t of annual capacity.
Rooftop photovoltaic generation · zero-discharge wastewater treatment
06 · Track record
Our longest customer relationship is 17 years old — and counting
A 17-year continuous supply partnership with a major Indonesian battery manufacturer — and long-term partners across India, Southeast Asia, East Asia, Europe and the Americas.
- 17 years Continuous supply to a major Indonesian battery manufacturer
- 11 countries Countries and regions served, by sea and air
- ELBC · ABC Exhibitor at the European Lead Battery Conference and the Asian Battery Conference
07 · Start a qualification
Qualifying a second source?
Send us your spec. Samples and full TDS ship within days.