We are a world-class 3.2V AAA cylindrical battery factory solely dedicated to 10440-format LiFePO4 battery manufacturing. As a vertically integrated production hub with independent R&D, mass production, and global supply capabilities, we serve 200+ B2B clients across 30 countries—setting industry benchmarks for 3.2V voltage stability, production scalability, and environmental compliance. Our factory’s core competitiveness lies in specialized manufacturing engineering, data-driven quality control, and customer-centric service—making us the preferred partner for high-reliability battery demands.

Core Factory Configuration: Specialized for 3.2V AAA Cylindrical Excellence

1. Factory Infrastructure & Layout (Industry-Leading Scale)

Dual Coastal Production Bases:

Factory 1 (Jiangsu): 32,000㎡ mass production center with 20 automated lines (annual capacity 20 million units), adjacent to Ningbo Port (45min logistics access)

Factory 2 (Guangdong): 18,000㎡ R&D & custom production base with 5 pilot lines + 2 R&D labs, 30min from Shenzhen Port—supporting fast global delivery

Class 1000 Clean Workshops: 8 dust-free zones (12,000㎡ total) with ISO 8-level air filtration, constant temperature (23±2℃) and humidity (40±5%)—exceeding LiFePO4 material processing requirements

Smart Production Flow: Automated material transfer system (AMTS) connects electrode preparation to packaging, reducing human contact by 90% and production efficiency by 35% vs. traditional factories

Intelligent Warehousing:

3,000㎡ raw material warehouse (temperature 18±3℃) with AGV robots for LiFePO4 cathode/anode storage

5,000㎡ finished product warehouse (humidity ≤50%) with automated storage/retrieval system (ASS) supporting 30 million units annual turnover

Real-time inventory tracking via cloud platform (24/7 client access)

2. Specialized Production Lines (3.2V-Optimized Equipment)

10440-Format Dedicated Lines: 25 fully automated production lines (Japan’s Toray precision winding machines + Germany’s Trumpf laser welding systems) with 3.2V-specific calibration:

Precision winding machines (tension control ±0.1N): Ensures electrode alignment accuracy ≤0.05mm for 3.2V stable discharge

Laser welding systems (sealing leak rate ≤1×10⁻⁶ Pa·m³/s): 100% airtight sealing for 3.2V long-term storage (5+ years)

Temperature-controlled electrolyte injection (dosage accuracy ±0.01ml): Customized for 3.2V cell structure to minimize self-discharge

Automated aging ovens: 72-hour 3.2V constant-voltage aging (0.05C charge/discharge) for early failure elimination

Smart Production Control:

MES (Manufacturing Execution System) integrated with ERP: Real-time monitoring of 120+ parameters (sampling frequency 0.1s)

AI quality prediction: Machine learning algorithm identifies potential defects with 99.7% accuracy before final testing

Scalable Capacity (Industry-Top 5 in 3.2V AAA Segment):

Annual capacity: 30 million units (ranked 4th globally for 3.2V AAA LiFePO4 batteries)

Bulk orders: 100,000–500,000 units/month (lead time 7–15 days)

Custom batches: MOQ 500 units (lead time 2–4 weeks via pilot lines)

Capacity expansion: 4 new lines (commissioned Q3 2025) to add 4.8 million units/year (total 34.8M units/year)

3. On-Site Quality Control Laboratory (CNAS-Certified)

800㎡ Testing Center: Equipped with 30+ international advanced equipment (Japan’s Yokogawa voltage testers + US’s Thermo Fisher environmental chambers):

Voltage precision testers (±0.001V accuracy): 100% batch testing for 3.2V consistency (tolerance ±0.02V)

Cylindrical shell roundness gauges (tolerance ±0.02mm): Ensures structural compatibility with client devices

Cycle life testing chambers: 2000+ cycles simulation (80% capacity retention guaranteed)

Extreme environment testing: -40℃ to 60℃ temperature range, 10–2000Hz vibration, IP67 waterproof verification

UN38.3/UL 1642 compliance testing: In-house certification support to avoid third-party delays

Full-Cycle Inspection Process:

Incoming material inspection: LiFePO4 purity ≥99.5% (ICP-OES testing), graphite anode moisture ≤0.1%

In-line 100% inspection: Winding uniformity, sealing quality, electrode thickness (±0.01mm)

Post-production sampling: 5% batch testing (3.2V discharge performance, cycle life, safety)

Aging screening: 72-hour 3.2V constant-voltage test (100% of finished cells)

Traceability System: Unique QR code per battery (linking to raw material batch, production line, test data, inspector ID) + blockchain-backed records (5-year data retention)

3.2V AAA Cylindrical Battery Core Production Technology

1. Material & Cell Design Optimization

High-purity LiFePO4 cathodes (≥99.5%, supplied by CATL subsidiary) + modified artificial graphite anodes (Japan’s JFE Chemical)

Electrode ratio optimization (1:1.05 cathode/anode): Ensures 3.2V stable discharge curves (100%–0% SOC voltage drop ≤0.3V)

10440 cylindrical format: Energy density 300–350 Wh/kg (1000–1500mAh), 10.5mm diameter × 44.5mm length (compatible with standard AAA device slots)

Low-self-discharge technology: ≤2%/year at 25℃ (patented electrolyte formula)

2. Factory-Exclusive Manufacturing Processes

Precision Winding: Customized Toray machines with adaptive tension control (adjusts based on electrode thickness)

Hermetic Laser Sealing: Trumpf laser welding with factory-calibrated parameters (power 150W, speed 3mm/s) for airtight sealing

Gradient Electrolyte Injection: Temperature-controlled (25±2℃) multi-point injection for uniform distribution

Anti-Corrosion Shell Treatment: In-house 304 stainless steel stamping + nickel-plated coating (salt spray test ≥500 hours)

3. R&D-Production Integration

20+ R&D engineers (5 with PhDs in electrochemistry) dedicated to 3.2V AAA battery innovation

Pilot production line: Rapid prototyping (2–4 weeks) for custom 3.2V solutions (capacity 800–1800mAh, discharge rate 0.1C–20C)

15+ patents (3 international PCT patents) in LiFePO4 cylindrical battery design/manufacturing

Annual R&D investment: 8% of revenue (focus on 3.2V high-rate discharge and ultra-low temperature performance)

Application-Specific Solutions (Factory-Proven Cases)

In the industrial control sector, our 3.2V AAA cylindrical batteries stand out with ±0.01V voltage stability and 10–2000Hz vibration resistance, making them the trusted choice for global automation leaders. We supply 5 million units annually to Germany’s Siemens and Japan’s Mitsubishi Electric, powering their PLC backup systems and remote sensors with uninterrupted reliability. For IoT devices, our batteries deliver 0.05C ultra-low discharge rates and 5–10 year service life, earning us qualification as a key supplier for US-based Honeywell’s smart meters—with 3 million units shipped each year to support long-term environmental monitoring and asset tracking. In the medical equipment field, our ISO 13485-certified production processes and sterile-grade manufacturing standards have made us a preferred partner for the Netherlands’ Philips, providing reliable 3.2V power for portable blood glucose monitors that demand uncompromising safety and stability. For outdoor electronics, our batteries combine IP67 waterproofing with -40℃ low-temperature performance, partnering with US-based Garmin to supply 2.5 million units annually for outdoor GPS trackers, ensuring consistent operation in extreme environmental conditions.

Factory Advantages: Why Choose Our 3.2V AAA Cylindrical Battery Factory?

Specialization Leadership: Exclusive focus on 3.2V AAA cylindrical LiFePO4 (no generic production) – 90% of equipment customized for this format

Scalable & Stable Supply: 30M units/year capacity (34.8M post-expansion) + dual production bases (risk redundancy)

Ultra-High Quality: 0.03% defect rate (industry average: 0.5%) + CNAS-certified lab + AI quality control

Global Compliance: ISO 9001/14001/13485/45001, UL 1642, UN38.3, CE, RoHS, REACH, EU EPR + carbon-neutral production (2024 certified)

Transparent Cooperation: Factory visits welcome (1000+ clients visited annually) + real-time MES portal access + 24/7 technical support

Sustainability Excellence: 100% renewable energy (solar + wind), 95% wastewater reuse, 100% recyclable packaging, electrolyte recycling program

Factory Compliance & Sustainability

Environmental Management:

Wastewater treatment plant (daily capacity 500m³): Meets GB 21900-2008 standard (China) + EU BAT requirements

Dust collection systems (efficiency ≥99.9%): Reduces PM2.5 emissions to ≤10μg/m³

Electrolyte recycling program: 85% of waste electrolyte recovered (partnered with BASF)

Safety & Social Responsibility:

Fire protection system (FM-approved): Automatic fire suppression for battery production areas

Labor compliance: ISO 45001 certified, minimum wage 150% of local standard, annual employee training ≥40 hours

Anti-child labor policy: Third-party audits (SGS) twice a year

Cooperation Process & Support

Inquiry & Customization: 24-hour response to technical queries + free sample design (for custom requirements)

Sample Testing: 7–10 days sample delivery (free for bulk clients) + test report provision

Pilot Production: 2–4 weeks small-batch verification (MOQ 500 units)

Mass Production: 7–15 days lead time for bulk orders + real-time production tracking

Logistics & Delivery: FOB Ningbo/Shenzhen port + partnership with Maersk/DHL (global delivery in 3–15 days)

After-Sales Support: 3-year warranty + on-site technical support (for key clients) + battery recycling guidance

We warmly invite you to visit our factory (online virtual tour available) to inspect production lines, quality control processes, and R&D facilities. Contact us today for:

Free 3.2V AAA battery samples (limited to 5 units per client)

Detailed technical datasheets (including 3.2V discharge curves, cycle life data)

Bulk production quotations (competitive pricing for orders ≥100,000 units)

Custom solution design (capacity, discharge rate, packaging, temperature range)

Let’s build a long-term partnership based on high-quality products, transparent manufacturing, and mutual growth!