Shredder that recycles lithium ion batteries

Nowadays, the number of lithium batteries discarded every year in the world continues to increase, and the source of waste lithium batteries has also shifted from small electronic products to the field of electric vehicle power batteries with the transformation of the economy. The growth rate and increment of resource recycling enterprises are showing a steady upward trend.

The recycling of waste lithium batteries has environmental benefits. Lithium-ion batteries are mainly composed of four parts: positive electrode material, negative electrode material, electrolyte and separator. Among them, the positive electrode material has high value and is also an important point of recycling. The material accounts for about 35%, and the negative electrode material, electrolyte and separator account for about 5%, 8% and 8% respectively.

Lithium battery recycling equipment manufacturing workshop

Recycling of waste lithium batteries is aimed at recycling metal elements such as lithium, manganese, iron, cobalt, nickel, copper and aluminum in lithium-ion batteries. The lithium battery is sent to the shredder by the conveyor for coarse crushing, and the shredded material is sent to the secondary crusher through the conveyor for secondary fine crushing, and the secondary crushed material is sent to the drum screen through the cyclone feeding device. Separate the large-size mixture, diaphragm paper and powder.

The large-size mixture is sent to the three-stage pulverizer by the cyclone feeding device for fine crushing again, and the finely crushed material enters the drum screen again, and the large-size mixture, diaphragm paper and powder are separated again, and the residual copper and aluminum mixture enters the high-speed mill The powder machine is finely crushed and agglomerated, and then enters the airflow specific gravity separator to separate copper and aluminum. The specific recycling process is as follows:

1. Through the combined process of hammer vibration crushing, vibration screening and air flow separation, the resource utilization of metal copper and carbon powder in the anode material of waste lithium batteries can be realized.

2. The positive and negative electrode materials can be effectively separated from the carbon powder and the copper and aluminum foil through hammer vibration crushing, and then the copper foil and the carbon powder can be preliminarily separated by vibrating sieving based on the size difference and shape difference between the particles. The results of hammer vibration stripping and sieving separation are shown.

3. This equipment is mainly used for lithium-ion battery manufacturers to separate the positive and negative materials in scrap lithium batteries for the purpose of recycling. The complete set of equipment operates in a negative pressure state, without dust leakage, and the separation efficiency can reach more than 98%.

Waste lithium battery recycling and processing equipment uses mechanical crushing and then uses vibration and sorting methods to classify waste lithium batteries. After classification, positive and negative electrode materials, electrode active materials, graphite and electrode active materials are selected, which can make waste cylinders Lithium batteries are reprocessed to recycle rare and precious metals, which not only has significant environmental benefits, but also has good economic benefits. It alleviates the increasingly serious resource shortage and environmental pollution problems caused by rapid economic development, and realizes the recycling of waste lithium-ion batteries.