Metal materials in waste lithium-ion batteries are of great value for recycling. Waste lithium-ion batteries contain a large number of metal resources (lithium, nickel, cobalt, manganese, aluminum, copper, iron, etc.), among which the content of recyclable metal materials in ternary lithium-ion batteries is as high as 49.3%, of which the content of precious metals nickel, cobalt, and manganese exceeds 23%. Metal elements such as cobalt, manganese, and nickel are all metal resources that my country is scarce, highly dependent on imports, and continue to rise in prices. At present, most of my country's new energy vehicle companies provide warranty services for power batteries for 5-8 years, and new energy vehicles in China began to be widely used in 2014. It is expected that my country's new energy vehicle power batteries will enter large-scale retirement stage starting in 2018. In 2018, the recycling market size reached 5 billion yuan. The existing technology in the market has a low leaching rate and sewage discharge, which cannot be produced cleanly. The recycling of waste power lithium-ion batteries in my country is mainly used in the industry to recover valuable metals in the cathode material, which is dissolved by inorganic acid, and extracted and separated. Metal compounds are sold as products. The main lithium battery recycling companies mainly recycle ternary cathode materials. Some small companies have carried out industrial production of lithium iron phosphate cathode materials recycling, but only recycle lithium in cathode materials. The technical level is low and the production cost is high. Inorganic strong acids are used to separate and purify metallic cobalt and lithium in lithium cobalt oxide cathode materials. The process is complex, and inorganic strong acids have high requirements on equipment, resulting in serious secondary pollution. This technology has high leaching rate, will not produce toxic gases, and production waste liquid is easy to treat and will not cause secondary pollution. The technology adopts natural organic acid leaching process. Compared with inorganic acid, the leaching time and leaching rate are improved to a certain extent. The technology is green and environmentally friendly., high leaching efficiency. This technology has passed small-scale testing and is flexible in process adjustment. It can be adjusted in a targeted manner according to the specific processing requirements of the company. This set of process technology is suitable for battery recycling companies, battery manufacturers, etc., and can be based on the specific requirements of the company to process used lithium-ion batteries., such as daily processing capacity, existing processing conditions and effects. After optimization, the technology is adjusted for different needs such as what effect it hopes to achieve. The cooperation methods we provide are also relatively flexible, including application development cooperation, patent transfer, patent implementation licensing and other methods. We will also provide post-technical guidance.