What are the recycling methods for lithium batteries?

Lithium battery recycling methods Generally speaking, the recycling of waste lithium batteries is a combination of physical and chemical means. Physical methods include mechanical separation, heat treatment, mechanochemistry, and dissolution processes. Among chemical methods, due to the advantages of low energy consumption, minimal waste water, and high recovery rate of high-purity metals, most researchers tend to use hydrometallurgy to recycle waste LIB. Important includes acid/alkali/biological filtration, chemical precipitation, solvent extraction and electrochemical processes. 1. Disassembly and recycling is also the most important method at present. Generally, there are wet recycling, dry recycling, biological recycling and other methods. Wet recycling is the most used and commercialized among them. The improvement of raw materials for lithium batteries and the recycling of used batteries to obtain reusable materials are the most important ways for manufacturers to reduce costs. 2. The cascade utilization is to use the original high-performance lithium battery as an energy storage battery, but the cost of high-performance lithium battery recovery is higher than that of ordinary batteries, and the consistency of the battery is required to be high. This method is in trial operation, and imperfect. 3. Lithium battery recycling equipment mainly adopts physical recycling methods, supplemented by three waste disposal measures. It has the characteristics of green, low-carbon, energy-saving and environmentally friendly, and no secondary pollution. The entire recycling process has all realized industrial automation, with high recycling efficiency and strong processing capacity. The recycling rate of valuable components of waste lithium batteries processed by lithium battery separation and recycling equipment is over 99%. 4. Under vacuum conditions, send the battery to an electrolyte collection device that maintains the dew point condition; use a needle to pierce the puncture on the battery to form a drain hole, and the electrolyte in the battery flows out of the drain hole and directly enters the electrolyte. In the collecting tank; after the electrolyte flows out naturally for 30-60minh, add the electrolyte in the electrolyte collecting tank to a nitrogen-protected reactor, and then add a barium oxide ethanol solution with a concentration of 30-50% to recover lithium fluoride. recycle. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.