How to recycle and deal with the batteries of new energy vehicles after they are scrapped?

Time:2023-03-18 17:07:28 Author:Suny Group

Power batteries are mainly lithium ferric oxide and ternary lithium, and a small amount of lithium titanate, lithium cobalt oxide, and lithium manganese oxide batteries. Waste power batteries contain a large amount of heavy metal elements such as manganese, cobalt, and nickel. At the same time, their electrolytes also contain highly toxic substances and volatiles such as lithium hexafluorophosphate. Improper disposal will cause serious damage to the environment.

From the perspective of environmental governance and resource utilization, through the dismantling of waste new energy vehicles and battery recycling, avoid environmental pollution while improving battery utilization efficiency, creating new profit margins, and reducing the cost of new energy vehicles .

New lithium battery recycling equipment customer site

New lithium battery recycling equipment customer site

According to the degree of scrapping, power battery recycling can be divided into cascade utilization and recycling. Echelon utilization belongs to mild scrapping, which can be used for secondary utilization by applying to energy storage equipment and low-speed electric vehicles, such as the application of decommissioned lithium iron phosphate batteries in the field of communication base stations, etc.; recycling belongs to severe scrapping, and lithium and cobalt are extracted by chemical methods and other precious metal electrode materials to achieve the purpose of material remanufacturing.

SUNY GROUP has developed and manufactured a set of complete recycling solutions for scrapped power lithium batteries. The crushing and sorting production line of charged lithium batteries usually consists of the following equipment, charged lithium battery crusher, electrolyte thermal volatilization device, pole piece friction Airflow classification equipment for powder removal, comprehensive sorting device for crushed lithium batteries, automatic discharge device for lithium batteries, and anaerobic cracking furnace. Different specific solutions are determined according to different needs.

Charged lithium batteries are broken into oxygen-depleted heating and volatilization through oxygen-deficient crushing. The first dual-volatility is nitrogen-free thermal volatilization, which can reduce the amount of nitrogen gas. The second is heating nitrogen volatilization and automatic extraction of volatile gas system (heat volatilization material temperature is less than 140 degrees) , to avoid the plastic film from softening into agglomerates), volatilization ensures that the oxygen content is below 1%. Heating and volatilization uses pyrolysis combustion tail gas heating and charged lithium battery power generation heating, so as to realize charging discharge and pyrolysis tail gas waste heat reuse; and an explosion-proof combustion system to improve equipment operation safety, and the volatilized electrolyte gas negative pressure is drawn out and transported to the pyrolysis combustion system separately Heat supply (transport separately to prevent organic gas from oxygen-containing explosion) to achieve comprehensive utilization of sorted waste gas and volatile gas.

The charged lithium battery enters the anaerobic feed material and crushes it with poor oxygen, and sends it to the inert protective gas circulation winnowing, winnowing and magnetic vortex sorting to separate the iron, aluminum block, copper block, stainless steel and plastic case, and select the pole Sheets, diaphragms, plastics, etc. enter the anaerobic cracking furnace, and the combustible gas produced by cracking is filtered and then supplied to the cracking system to heat the cracking system. The charged lithium battery crushed material is discharged at high temperature in the furnace to generate heat so that the electric energy can be reused.

The above is a detailed introduction to the recycling of lithium batteries. If you want to know more about lithium battery recycling, you can contact us directly and give you a complete solution and video quotation.


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