From facility layout to operational readiness, TOBGROUP delivers complete turnkey cylindrical cell pilot line solution. Our end-to-end service includes design, equipment, installation, training, and support, providing a single-point solution for your pre-production validation needs.
The TOBGROUP cylindrical cell pilot line focuses on validating process scale-up and locking mass production parameters as the most important bridge for the industrialization of large cylindrical cells, such as 4680/4695. It pilots liquid lithium-ion, sodium-ion, and semi-solid batteries that change the perception of "lab-scale samples" to "market-available products".
● Directly Connected with Mass Production Readiness: Major parameters (e.g., Winding speed ≥8m/min, Filling accuracy CPK≥33) benchmarked to that of production standards.
● Multi-Chemistry Co-line production is able to change over from the process of liquid to solid-state batteries within 4 hours.
Standard Configuration with Full Customization Support
|
Parameter Item |
Standard Configuration / Range |
Customization Range / Notes |
|
Standard Capacity |
5,000 cells/day |
2,000 - 20,000 cells/day |
|
Winding Speed |
3-10 m/min |
Up to 15 m/min (High-speed model) |
|
Filling Cycle Time |
3 sec/cell |
1.5 sec/cell (Multi-needle system) |
|
Welding Yield |
≥99.5% |
≥99.9% (Laser + Vision customization) |
|
Supported Chemistries |
Liquid Li-ion, Sodium-ion |
Semi-solid/All-solid-state |
|
Automation Level |
Full-auto key processes |
Local AGV logistics option |
|
MES Data Points |
300+ |
500+ (with added AI analysis module) |
|
Environmental Control |
Dry room (≤0.5% RH) |
Full inert atmosphere (O₂≤1ppm) option |
|
Typical Delivery Lead Time |
25-35 weeks |
20-40 weeks (depending on customization) |
TOBGROUP Cylindrical Pilot Line: The Precise Sandbox for Mitigating Mass Production Risks
● High-Precision Manufacturing Capability:
（1）Winding alignment accuracy ±0.1mm (applicable for 0.6mm ultra-thin electrodes)
（2）Laser welding yield ≥99.5% (CCD vision positioning + AI weld seam inspection)
● Advanced Process Scale-up Platform:
（1）Dry electrode continuous calendaring (Areal density variation ≤±1.5%)
（2）Solid-state electrolyte film hot-press lamination (Thickness control ±2μm)
（3）Tabless (All-tab) formation technology (Contact resistance ≤0.1mΩ)
● Smart Factory Preview:
（1）SCADA system for real-time equipment monitoring (Temperature/Vibration/Current)
（2）A digital twin platform helps simulate how production scheduling works.
Full-cycle services start from installation and go up to production transfer.
● Cylindrical Cell Pilot Line Planning: Design flow of process and lay out equipment based on yield (≥95%) and capacity (5000+ cells/day) targets.
● Equipment Customization: Supply core equipment dedicated to pilot (Double-sided coater, High-speed winder, Integrated filling & sealing machine).
● Integration & Commissioning: 3-phase commissioning by TOB engineers (Single machine → Line integration → 30-day run validation).
● Process Package Delivery: Basic SOPs, parameter window control sheets, SPC analysis templates.
● Production Transfer Consulting: Offer plans to increase capacity and improve equipment efficiency.
Core enablers of technological implementation
Actionable insights from planning to execution
● Core Equipment: Tabless formation machine (Flatness ≤5μm) + Laser cleaning station (oxide removal)
● Process Control: Adaptive adjustment of formation pressure. Real-time laser power feedback based on weld path.
● Data Traceability: MES records formation pressure/temperature curve and welding impedance for each cell.
Hastelloy alloys are required for critical contact components. TOB provides material certification reports by testing NaClO₄ corrosion resistance and monthly corrosion inspection protocols.
A standard configured cylindrical cell pilot line requires approximately 120 square meters of cleanroom space (15m × 8m), with a recommended ceiling height of no less than 3.5 meters. The actual space requirement may vary based on production capacity and automation level. We offer plant layout design services and can provide optimized designs tailored to existing site conditions.
TOBGROUP delivered a 3000F 60138 supercapacitor pilot line with full equipment, materials, and on-site commissioning support.
TOBGROUP designed a Na-ion battery lab line producing 18650S, 32138S, 32140S cells for advanced research and development.
TOBGROUP delivered a full-cycle 5MWh pouch cell production line for Li-ion and Na-ion, enabling European energy storage production.
