Lithium-Ion Battery Recycling Line with Nitrogen Protection System

Efficient and safe black mass recovery is the core of modern lithium-ion battery recycling. Our Lithium-Ion Battery Recycling Line with Nitrogen Protection System is designed to maximize black mass purity, metal recovery efficiency, and operational stability while significantly reducing energy consumption and safety risks. The system integrates electric-heated pyrolysis, nitrogen-protected shredding, ultrafine grinding, and high-precision copper–aluminum separation into a fully optimized process flow. By maintaining an oxygen concentration below 2% throughout critical high-temperature stages, the nitrogen protection system effectively prevents oxidation and thermal runaway, ensuring stable operation and consistent black mass quality.

During pyrolysis, shredded battery materials are heated under oxygen-free conditions at 400–450°C, allowing organic components to decompose while retaining valuable metals. Compared with natural gas heating, the electric-heated pyrolysis furnace reduces energy consumption by approximately 50% and provides faster, more accurate temperature control. Waste heat recovery further improves overall energy efficiency. After thermal treatment, an ultrafine grinding system operating at 3000 rpm enables the efficient liberation of black mass from copper and aluminum foils. Up to 80% of black mass can be released in a single grinding stage, minimizing metal loss and improving downstream separation performance.

The black mass screening system adopts an advanced aerodynamic airflow separation design, allowing precise classification by adjusting airflow parameters. Copper and aluminum impurities can be controlled below 1.5%, and for high-end applications, aluminum content can be reduced to below 300 ppm. The fully automated copper–aluminum separation system ensures stable output of high-purity materials. Mixed fractions are automatically returned for re-separation, maximizing overall recovery efficiency. Black mass is automatically collected and packed, requiring minimal manual intervention and reducing labor costs.

With a processing capacity of 800–1000 kg/h, this recycling line is ideal for commercial-scale lithium-ion battery recycling and black mass production. By combining nitrogen protection, high-efficiency black mass recovery, and intelligent automation, the system helps recyclers achieve higher profitability, safer operation, and long-term sustainability. For more machine information, or to schedule a factory visit (in-person or virtual), feel free to contact our sales team.

👉 Contact Tel: +86 199 0388 6476
👉 Contact Email: hnhonest.zack@gmail.com