Once pre-treatment is complete, you load the batteries into a sealed furnace filled with nitrogen or argon. At 200 to 250℃, the heat removes remaining electrolytes, lowering flammability risks. Increasing the temperature to 350 to 450℃breaks down PVDF binders, freeing the active material from metal foils. Konečne, at 500 to 650℃, remaining organics decompose into gas for later cleaning. These controlled stages work together to achieve high recovery rates and stable, safe operation.