A lithium battery recycling line is a facility that uses a series of mechanical processes to safely and efficiently dismantle, sort, and recover valuable materials from end-of-life lithium-ion batteries. Key steps typically include discharging and dismantling the batteries, followed by crushing, magnetic and air separation, screening, and gravity separation to isolate materials like copper, aluminum, nickel, and the black mass containing graphite and lithium compounds. The goal is to promote a circular economy by transforming waste batteries into resources for new products, reducing environmental impact, and recovering valuable raw materials.