Lithium battery recycling machine technology

The research status of positive electrode, negative electrode material and electrolyte recovery in waste ternary lithium-ion batteries mainly includes the pretreatment of positive electrode material, acid leaching, alkali leaching and material regeneration, graphite and copper foil recovery, and electrolyte recovery. The recycling technology of waste ternary lithium-ion batteries is of great significance and practical value. Among them, the positive and negative materials are the most valuable for recycling, but at the same time electrolyte recycling also has a certain economic value.
 

The new technology of waste ternary lithium-ion battery recycling and reuse recycles metal materials in waste lithium-ion batteries, which not only protects the environment but also has good economic prospects. The technical process of metal material recycling in lithium-ion batteries includes battery pretreatment and battery materials. There are 4 steps of separation, metal enrichment and metal separation and purification. The development of metal recycling technology in lithium-ion batteries is relatively mature, and there are a large number of applications in the recycling of four common lithium-ion batteries (lithium cobalt oxide batteries, lithium manganese oxide batteries, lithium nickel cobalt manganese oxide batteries and lithium iron phosphate batteries).
 

Lithium battery recycling plant can obtain valuable metals or directly prepare battery materials by recycling ternary lithium-ion batteries. In order to improve the effective recovery rate of materials, pretreatment methods are usually used to separate the current collector and the positive electrode active material to achieve effective separation of materials and further post-processing. The physical separation method extracts metals and separates impurities from the positive electrode active material, and further prepares battery materials.