A brief introduction to the recycling and utilization of lithium-ion batteries

Lithium batteries have an average life span of about three years, so if used batteries are not recycled, it will not only cause great harm to the environment, but also a waste of resources. After all, the amount of cobalt that can be mined in my country is 400,000 tons. Therefore, the recycling of used lithium batteries is an urgent matter. Although lithium batteries have a complex structure and different specifications, it is more difficult to recycle and reuse. However, it is known that the positive electrode, negative electrode, separator, electrolyte and other materials that make up lithium batteries contain a large amount of valuable metals. Different power lithium battery cathode materials contain different valuable metal components. Among them, the metals with the highest potential value include cobalt, lithium, nickel and so on. If these materials can be recycled, it is also a matter of benefit to others and oneself. There are three existing technologies for recycling lithium ions: fire method, wet method and biological method. The fire method, as its name implies, is to analyze by high-temperature incineration and then remove the organic matter for bonding purposes to realize the separation of the materials of the lithium battery pack. At the same time, the metals and compounds are oxidized and analyzed. After they are volatilized in the form of steam, they are finally condensed. collect. The wet method is to classify it first, then select an appropriate solvent for dissolution and separation, and extract to obtain the corresponding metal compound material. Biological method is to achieve the leaching of cobalt and lithium by the metabolic process of microorganisms with special selectivity. Although the recycling and reuse of power lithium batteries is facing many difficulties, it also faces unprecedented opportunities. Because lead-acid batteries have a huge risk of environmental pollution, and with the continuous development of lithium battery technology, coupled with the advantages of lithium batteries in capacity and service life, lithium batteries as power will become the development trend of low-speed electric vehicles. It is not easy to realize the recycling of battery materials, but if a complete recycling chain of lithium batteries can be formed, it will be a great help to the sustainable development of energy in our country. Disclaimer: Some pictures and contents of articles published on this site are from the Internet. If there is any infringement, please contact to delete.