What is the recycling process of used batteries?

The process of recycling waste batteries is roughly as follows: 1. Classification: You can smash the recycled waste batteries, peel off the zinc shell and battery bottom iron, remove the copper caps and graphite rods, and use the remaining black objects as batteries. After the mixture of manganese dioxide and ammonium chloride in the core is collected and processed separately, we can get some useful substances. The ink stick can be used as an electrode after washing and drying. 2. Zinc pellets: Wash the stripped zinc shell and place it in a cast iron pot. After heating and keeping it for 2 hours, remove the layer of scum on it, pour it out for cooling, and then drop it on the iron plate. , After the solidification, zinc particles can be obtained. 3. Recycling copper flakes: we can flatten the copper cap and wash it with hot water, then add a certain amount of 10% sulfuric acid and boil it for 30 minutes to remove the oxide layer on the surface, remove it, wash it, and dry it. You can get copper flakes. 4. Recycling ammonium chloride: We put the black substance in the tank, then add 60oC warm water and stir for an hour, so that all the ammonium chloride will be dissolved in the water, static, filtered, and washed with water twice to collect the mother liquor . 5. Recovery of manganese dioxide: We wash the filtered filter residue 3 times with water, filter, put the filter cake into the pot and evaporate to remove a little carbon and other organic matter, then put it in the water and stir it fully for 30 minutes, filter, Dry the filtered cake at 100-110oC so that we can get manganese dioxide. Due to the difficulty and high cost of lead-containing acid solution treatment, a small number of waste batteries use the company to purchase acid batteries at a high price or buy illegally smelted crude lead, inducing a few collectors to illegally dismantle the waste batteries and dump the acid, causing environmental pollution; at the same time; , Waste water, waste gas, and waste residues will appear in the process of using and disposing of waste batteries. If they are not handled properly, they will pollute the atmosphere, water and soil. The illegal regeneration process of waste batteries is simple, easy to flow, and difficult to supervise. Especially in remote areas, illegal regeneration of lead smelting activities has been repeatedly prohibited, causing serious pollution to the ecological environment. 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: What are the charging methods and techniques for lithium battery electric vehicles?