Lithium battery recycling and processing production line

Lithium battery recycling is mainly processed through a waste lithium battery crushing and recycling equipment from Henan Yuteng Machinery. The equipment for crushing and recycling waste lithium batteries has added a pre-treatment step before the recycling of lithium battery raw materials, using more advanced technology to extract various elements from waste lithium batteries, including nickel, cobalt, manganese, copper, aluminum, etc.

The equipment process production line not only reduces subsequent pollution, but also obtains high-value recycled materials and improves economic value. Therefore, the recycling and utilization of waste lithium batteries is of great significance.

Lithium batteries are mainly composed of a casing, positive electrode, negative electrode, electrolytic wave, and separator. The positive electrode is composed of lithium cobalt oxide powder coated on both sides of an aluminum foil current collector with PVDF, which has a bonding effect; The negative electrode structure is similar to the positive electrode, consisting of carbon powder bonded on both sides of a copper foil current collector.

At present, research on the recycling of waste lithium batteries mainly focuses on the valuable positive electrode precious metals cobalt and lithium. The copper content in the negative electrode of waste lithium batteries is about 35%, which is an important production raw material widely used. The carbon powder on it can be used as an additive for plastics and rubber. Therefore, the effective separation of negative electrode materials from waste lithium batteries plays a driving role in achieving limited recycling of waste lithium batteries and eliminating their corresponding environmental impacts.

Waste lithium batteries are transported by a conveyor to the primary crusher for crushing. The crushed material is then sent to the secondary multi blade crusher for secondary crushing. The material after secondary crushing enters the conveyor and is equipped with magnetic separation equipment to separate iron from the material. The sorted materials are transported to the air sorting machine through a conveyor. Separate the paper from the positive and negative electrodes using a induced draft fan and a cyclone feeder. Place the separated positive and negative plates into a three-stage crusher for fine crushing, and grind the material to around 20 mesh. The crushed material enters the cyclone separator through a negative pressure system for dust filtration.

Through two air flow sorting processes, materials of different densities are layered to obtain positive and negative electrode materials, copper, aluminum, nickel, and other materials. All ultrafine dust is collected by the pulse dust collector through the negative pressure system, and the filtered exhaust gas is continuously sent from the negative pressure system to the exhaust gas treatment equipment for air purification to meet environmental emission standards before being discharged at high altitudes.

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