With the widespread application of lithium-ion batteries in new energy vehicles, electric tools, energy storage and other fields, the lithium-ion battery industry will usher in a period of rapid growth. In the next few years, China’s lithium batteries will usher in a large-scale retirement wave, which will lead to a large number of waste lithium batteries entering the market, and lithium battery recycling has become a hot topic of global concern. Due to the fact that waste lithium batteries are a very complex mixture containing many different components, especially precious metals such as lithium, nickel, cobalt, manganese, aluminum, etc., recycling waste lithium batteries can not only meet the needs of environmental protection, but also help to maximize economic value.