EV batteries recycling facility complete set
At present, power batteries are mainly lithium phosphate, lithium ternary, and a small amount of lithium titanate, lithium cobaltate and lithium manganate. Waste power batteries contain a large amount of manganese, cobalt, nickel and other heavy metal elements, while their electrolyte also contains lithium hexafluorophosphate and other highly toxic substances and volatiles, improper disposal will cause serious damage to the environment. Through the dismantling of used new energy vehicles and battery recycling, we can avoid polluting the environment while improving the efficiency of battery utilization, creating new profit margins and reducing the cost of new energy vehicles.
According to the degree of end-of-life, power battery recycling can be divided into secondary use and recycling. Gradient utilization belongs to light end-of-life, which can be applied to energy storage equipment and low-speed electric vehicles for secondary use, such as retired lithium iron phosphate batteries used in the field of communication base stations, etc.; regeneration utilization belongs to heavy end-of-life, which can be used to extract lithium, cobalt and other precious metal electrode materials through chemical methods to achieve the purpose of material remanufacturing.
SUNY GROUP has developed and manufactured a complete set of recycling equipment and facilities for the completely scrapped LiFePO4 batteries. The physical method uses the physical-chemical reaction process to treat lithium-ion batteries. Common physical and chemical treatment methods are crushing and flotation and mechanical grinding.
Lithium battery recycling production line
1) Crushing and flotation method
Crushing and flotation method is a method of sorting by using the difference of physicochemical properties on the surface of the material, that is, after crushing and sorting the complete waste lithium-ion battery, the obtained electrode material powder is heat-treated to remove the organic binder, and finally the flotation is separated according to the hydrophilic difference between the surface of lithium cobaltate and graphite in the electrode material powder, so as to recover the cobalt-lithium compound powder. The crushing and flotation method is a simple process, which enables effective separation of lithium cobaltate and carbon materials, and the recovery rate of lithium and cobalt is high. However, since all the materials are crushed and mixed, it is difficult to separate and recover the copper foil, aluminum foil and metal shell fragments; and since the crushing is likely to cause the reaction between the electrolyte LiPF6 and H2O to produce volatile gases such as HF, it is necessary to pay attention to the crushing method.
2) Mechanical grinding method
The mechanical grinding method is a method that uses the thermal energy generated by mechanical grinding to induce the reaction between the electrode material and the abrasive, thus converting the lithium compounds originally adhered to the collector fluid in the electrode material into salts. The recovery rate varies for different types of grinding aid materials, and higher recovery rates can be achieved: 98% for Co and 99% for Li. Mechanical grinding method is also an effective method to recover cobalt and lithium from waste lithium-ion batteries. Its process is relatively simple, but it requires high instrumentation and is prone to cobalt loss and aluminum foil recovery difficulties.
The current proportion of power lithium battery recycling is still relatively low, so the recycling market of lithium batteries is huge. SUNY GROUP has been to the recycling of end-of-life lithium batteries for many years, and designed and manufactured related technical solutions for many customers, if you have questions about lithium battery recycling, please contact us in time.
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