The production of lithium battery cells involves a series of precise and controlled processes designed to ensure performance, safety, and consistency. At Tianneng, every stage of manufacturingfrom raw material preparation to final assembly is guided by strict quality management and advanced automation. With 20+ GWh of production capacity, Tianneng’s lithium battery factory is dedicated to supplying reliable and high-efficiency lithium-ion battery solutions for various applications, including electric mobility and energy storage systems.

Material Preparation and Electrode Production

The manufacturing of lithium battery cells begins with the preparation of active materials for the cathode and anode. These materials are mixed with binders and conductive agents to form a uniform slurry. The slurry is then evenly coated onto thin metal foils—aluminum for the cathode and copper for the anode. After drying, the electrodes are compressed through a rolling process to achieve the desired density, ensuring energy consistency and durability in every cell.

Cell Assembly and Formation

Once the electrodes are prepared, they are cut, stacked, or wound together with a separator in between to prevent short circuits. The stack is then inserted into the chosen cell casing—such as a pouch, cylindrical, or prismatic form. Tianneng’s lithium battery factory uses automated equipment to inject electrolyte precisely and seal each cell in a controlled environment to avoid contamination. The cells then undergo a formation process, where they are charged and discharged multiple times to stabilize internal chemistry and achieve optimal performance.

Testing, Aging, and Quality Control

Before shipment, every Tianneng lithium battery cell undergoes rigorous testing, including voltage, capacity, impedance, and safety checks. Cells are also aged under specific conditions to verify long-term stability. These processes ensure Tianneng batteries meet strict industrial and environmental standards while maintaining high consistency across batches.

Conclusion

Manufacturing lithium battery cells is a sophisticated process that requires precision and expertise. Tianneng combines advanced R&D, large-scale production, and automated control systems to ensure each product meets the expectations of professional clients. As a trusted lithium battery factory, Tianneng continues to provide high-quality cells and packs that deliver reliable performance for global partners.