What are the methods for recycling waste electric vehicle batteries?

1. The manual sorting and recycling method is to manually separate the recycled waste electric vehicle batteries into carbon rods, copper, caps, zinc skins and various residues, and classify them for disposal by corresponding methods. This method is simple It is easy to do, but it uses a lot of labor and has poor economic benefits. 2. Dry method Dry method, which can also be called smoke method or fire method, is to recycle, sort and crush waste electric vehicle batteries, and then roast them in a roasting furnace at 600 to 800 degrees Celsius. The exhaust gas is condensed and then mercury is extracted. Put the roasting residue into a rotary kiln and burn it at a low temperature at 1100-1300 degrees Celsius, recover zinc oxide from the flue gas, and recover manganese and iron from the residue. Using this method, general smelters can recover mercury and zinc in electric vehicle batteries without adding new equipment and labor. 3. The wet method is to recycle, sort and crush electric vehicle batteries, place them in a leaching tank, add dilute sulfuric acid for leaching, and then filter to extract metallic zinc from the filtrate. Manganese is further extracted from the filter residue. Fourth, the dry-wet method is to combine the advantages of the dry method and the wet method. First, the roasting method is used to recover the zinc, and then the leaching and electrowinning methods are used to recover the manganese and zinc. Using this method, the recovery effect is better, but the process is complicated and the cost is also higher. 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: Precautions and matters for the preservation of lithium-ion batteries