Manufacturing Capability
Engineering-Driven Production . Agile Delivery
For custom lithium batteries, manufacturing is not simple assemblyóit is a system-level discipline integrating structure, process, quality, and consistency.
Through the coordinated layout of our Specialty Cell Manufacturing Center and Battery PACK Manufacturing Center, LARGE transforms custom designs into repeatable, scalable, and fast-deliverable production, ensuring safety, consistency, and long-term project continuity.
Specialty Cell Manufacturing Center
Our specialty cell manufacturing center supports multiple process routes and specifications, enabling customized cell designs for different performance, structure, and safety requirements.
- Cylindrical & Li-polymer cells
- Winding & stacking processes
- Annual capacity: ≈210 Mwh
- Multi-variety, multi-batch, high-quality customization
- Supports R&D samples, engineering validation, and custom projects
provides a stable foundation for PACK design, system testing, and certification.
Lithium Battery PACK Manufacturing Center
Designed for custom battery system production, our PACK manufacturing center covers mechanical assembly, electrical connection, BMS integration, and functional testing, enabling stable replication and fast delivery.
- 9 intelligent / high-power production lines (including flexible U-shaped lean lines)
- Annual capacity: ≈4 Gwh
- Smooth transition from pilot runs to mass production
- Full process coverage from welding to final inspection
Key Process Stations
Consistency from Design to Mass Production. Six tightly integrated process stations ensure manufacturing consistency and agile delivery, reducing average customization lead time by 30%.
BMS testing
Functional and communication verification
Cell matching & insulation
Voltage ≤ 3 mV | Resistance ≤ 2 mΩ | Capacity≤20 mAh
Pre-processing
Cell grouping, welding, and base structure assembly
Nickel strip forming
In-house cutting and shaping for reliable connections
Label printing & cutting
Ensures trace ability and delivery
efficiency
Low-temperature injection molding
Stable sealing and insulation with reduced thermal stress
Quality & Consistency Assurance
Quality risks in custom batteries often amplify during mass production. We embed testing and validation directly into the manufacturing process to ensure sample-level performance is consistently replicated at scale.
Quality Control System
- Standardized SOPs locking critical process parameters
- 128 inspection checkpoints with real-time monitoring
- Testing standards integrated into production flow
- Periodic sample re-verification to ensure batch consistency
Agile Delivery-From Sample to Mass Production
Engineering Samples
Rapid small-batch, multi-spec sample builds to validate
structure and assembly.
Process Feasibility Review
Pilot Run & Process Lock-in
Small-batch trials to finalize key process parameters and SOPs.
Mass Production Introduction
Flexible or automated line configuration balancing efficiency
and consistency.
Stable Production & Continuous Delivery
Controlled batch consistency, full traceability, and scalable
long-term supply.