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Do you know about lithium battery recycling?

2024-02-05-wanrees

Description:

Lithium battery recycling is an important area of environmental protection and resource reuse. With the rapid development of electric vehicles, mobile devices and other fields, the demand for lithium batteries continues to increase, and the number of used lithium batteries is also rising year by year. If used lithium batteries are not properly disposed of, they will not only waste precious resources but also cause serious pollution to the environment.  The main purpose of lithium battery recycling is to extract valuable metals, such as lithium, cobalt, nickel, etc., which are indispensable raw materials in the manufacturing of lithium batteries. By recycling used lithium batteries, the exploitation of primary resources can be reduced, damage to the environment can be reduced, and resource recycling can also be achieved.

 

Lithium Battery Disposal Recycling Process:

Do you know about lithium battery recycling?-WANREES

Discharge tank → Conveyor belt → Double shaft shredder → Heating oven → Hammer crusher → Suspended magnetic separator → Suspended magnetic separator→ Vibrating sieve powder device → pulverizer machine → Air flow separator → electrostatic separator → Pulse dust collector

1. Discharge tank: discharging the used lithium batteries to a non-electric state by self-discharging or immersing them in salt water to obtain non-electric lithium batteries.
2. Conveyor belt: transporting the uncharged lithium batteries to the shredder.
3. Double shaft shredder: the lithium battery is shredded and processed and may catch fire during the shredding process, so it can be filled with nitrogen during the shredding process, or a more economical way is to put water in a bucket and add water.
4. Heating oven: using electric heating, used to dry the battery electrolyte and moisture.
5. Hammer crusher: to crush lithium batteries into 8-20mm.
6. Suspended magnetic separator: remove the iron from the lithium battery.
7. Suspended magnetic separator: separating the metal for the second time and separating it a bit more clearly.
8. Vibrating sieving powder device: separating the carbon powder at the bottom and separating the insulation diaphragm at the top.
9. Pulverizer machine: grinding the metal into 15-20 mesh powder.
10. Airflow separator: the powder after grinding and then specific gravity sorter, separating carbon powder, copper powder, aluminum film powder, etc.
11. Electrostatic separator: optional, further separation of metal powder.
12. Pulse dust collector: to purify the dust of the complete lithium battery recycling equipment.

 

Before and after comparison pictures:

Do you know about lithium battery recycling?-WANREES

Raw materials: Lithium battery disposal recycling solutions are used to dismantle and recycle mobile phone batteries, car batteries, rechargeable batteries, electric car lithium batteries, soft pack batteries, shell batteries, cylindrical batteries, etc. Different types of lithium batteries have different recycling procedures. Final product: The final products are graphite powder, lithium cobaltate, aluminum and copper.

 

 Working   Principle:

The lithium battery disposal recycling equipment production line first discharges the lithium battery with electricity through the discharge tank, and then sends it to the double shaft shredder through the conveyor belt material for shredding, and the shredded lithium battery goes into the heating oven to dry the electrolyte and moisture of the battery, and then sends it to the hammer crusher through the conveyor for crushing, and the crushed lithium battery goes into the suspended magnetic separation, which can sort out the iron in the lithium battery, and then through the second level of suspended magnetic separation The second separation of metal, the metal in which will be separated more cleanly, after the separation of lithium batteries through the vibrating sieve powder device at the bottom to separate the carbon powder, the upper part of the separation of the insulation diaphragm. The powder state of the lithium battery processed through the pulverizer machine is fed by the negative pressure system into the cyclone separator for air filtration and falls through the fan to the airflow separator so that the different densities of the material are layered to get the metal sorted out and further separated from the metal powder through the electrostatic separator while all the non-metals are brought into the pulse dust collector by the negative pressure system for concentration. The filtered tail gas will continue to be sent by the negative pressure system to the tail gas treatment equipment for air purification to meet emission standards before being discharged into the air.

 

Advantages:

The advantages of physical method recycling of lithium batteries may include the following aspects:

  1. Environmental protection: The physical recycling process has strong environmental adaptability because it does not involve the use of chemical reagents and reduces environmental pollution. In addition, the physical method does not require high-temperature smelting during the operation and is more environmentally friendly than the pyrometallurgical process.
  2. Cost-effectiveness: The operating cost of physical recycling is relatively low because it mainly relies on mechanical processing, such as crushing and sorting. These processes have low energy consumption and the equipment and technology are relatively mature.
  3. High recovery rate: Physical methods can achieve high recovery rates. For some materials, the recovery rate can even reach more than 90%. In particular, the recovery efficiency of positive and negative electrode materials and separators is extremely high.
  4. Mature technology: After years of optimization and iteration, physical recycling technology has become relatively mature and can effectively process used lithium batteries and extract valuable materials.
  5. Strong adaptability: The physical recycling process is not restricted in site selection and can flexibly respond to different environments and site requirements.
  6. Comprehensive utilization: Physical recycling can not only extract valuable metals, but also effectively utilize other components of the battery, such as electrolytes and separators.

 

 

 

 

 

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