How Pyrolysis Lithium Battery Recycling Line Works

Pyrolysis is an advanced thermal decomposition process used in recycling lithium batteries. It involves heating the batteries in an oxygen-free or low-oxygen environment, breaking down the materials into simpler compounds without combustion. Here's a step-by-step explanation of how a pyrolysis lithium battery recycling line works:

1.Pre-Treatment

Shredding: The dismantled battery cells are shredded into smaller pieces to increase the surface area for better thermal decomposition.

Sieving: The shredded material is sieved to remove large debris and isolate the fine particles that contain valuable metals.

2. Pyrolysis Process

Heating: The shredded battery materials are fed into a pyrolysis reactor, where they are heated to high temperatures (typically between 400°C and 800°C) in an oxygen-free or low-oxygen environment.

Decomposition: At these high temperatures, the organic components of the batteries (such as binders and electrolytes) decompose into gases and oils, while the inorganic components (such as metals and carbon) remain as solid residues.

3.Solid Residue Processing

Separation: The solid residues, which include valuable metals like lithium, cobalt, nickel, and manganese, are separated from the carbon and other inert materials.

Purification: The separated metals undergo further purification processes, such as hydrometallurgy or electrometallurgy, to obtain high-purity metal compounds that can be reused in battery manufacturing

4.Recovery and Reuse

• Recycling: The recovered metals and materials are recycled and sent back into the supply chain for the production of new lithium batteries or other industrial applications.
• Waste Management: Any remaining waste materials are managed and disposed of according to environmental regulations to minimize environmental impact.

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