How to solve the waste lithium battery after production and recycling?

After pre-solving the discarded lithium battery, the generally obtained rupture product composition is more complicated, including lithium battery shell, positive electrode material, negative electrode material, copper current collector, aluminum current collector, barrier, electrolyte, etc., and further needs to be resolved separately. Valuable metal recovery and utilization process The metal recovery process for discarded lithium batteries mainly includes physical separation, pyrometallurgy and hydrometallurgy. Regarding the use of waste lithium batteries, we know that cobalt, lithium, copper and plastics in waste lithium batteries are precious resources with extremely high recovery value. The waste lithium battery is mainly composed of a shell, a positive electrode, a negative electrode, an electrolyte and a barrier. The positive electrode is formed by coating lithium cobalt oxide powder on both sides of the aluminum foil current collector through PVDF for bonding; the negative electrode structure is similar to the positive electrode, and is composed of carbon powder bonded to both sides of the copper foil current collector. For the recovery and utilization of waste lithium batteries, the commonly used methods for recycling waste lithium batteries include hydrometallurgy, pyrometallurgy and mechanical physical methods. Compared with the wet method and the fire method, the lithium battery grinder adopts the mechanical physical method without the use of chemical reagents, and has lower energy consumption, which is an environmentally friendly and efficient method. (1) Physical sorting method Physical sorting method is a sorting method based on the difference in material function such as particle size, density, magnetism, etc., mainly including screening, gravity sorting, flotation, magnetic sorting, etc. First, a vertical shearing machine, a wind shaker and a vibrating screen are used to classify the discarded lithium batteries. After rupture and sorting, the positive electrode material, the negative electrode material, the barrier, the current collector, etc. are obtained. Then the positive electrode material and the negative electrode material are thermally solved for 500, and then the lithium cobalt oxide and graphite are removed by the flotation method. The recovery rate of the lithium cobalt oxide can reach 97%. (2) Pyrometallurgy requires pre-solution to discarded lithium batteries, strips off the battery shell, and then restores and roasts the mixed materials. The organic matter such as binders escapes in a gaseous manner. Most of the low boiling point lithium oxide It escapes in the form of steam, is absorbed and recovered by water, and other metals (copper, nickel, cobalt, etc.) form metal alloys, which are subsequently produced by hydrometallurgical technology, and the fluorine and phosphorus in the electrolyte are solidified in the slag. Merico International Co., Ltd. has a recycling plant in Oren, Belgium, with an annual capacity of 7,000 tons of used batteries. my country’s new energy vehicles mainly adopt pure electric methods, so the issue of the obsolescence of power lithium-ion batteries after expiration has become an issue that the government pays attention to. my country’s new energy vehicles mainly adopt pure electric methods, so the issue of the obsolescence of power lithium-ion batteries after expiration has become an issue that the government pays attention to. Lithium battery recovery is of great significance to the industry. The pilot work for the recovery and utilization of power lithium-ion batteries will promote the market to accelerate the improvement of the power lithium-ion battery recovery system. The recovery of lithium batteries, the next industry that will explode! The scale of lithium batteries recovered in the market may exceed tens of billions, and lithium batteries contain less toxic substances. It is not very meaningful to discuss his pollution problem. First of all, it depends on the management and control of the production company. The production of chemical pesticides is well controlled. The same is very good. On the contrary, if the company that produces lithium batteries does not control it, it cannot be ignored. The research report shows that the power lithium-ion battery is about to usher in the first wave of decommissioning. It is expected that the overall scale of the lithium battery recovery market in 2020 will reach 15.6 billion yuan. The recycling of ternary lithium batteries may become the protagonist, and the framework business model of recycling the network + professional solutions is constantly being optimized. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: How to guard against lithium battery fires