Waste lithium battery recycling and dismantling
Release Time：2022-11-10 Source：Battery Recycling Machine Share：
Some data show that if waste lithium batteries can be fully recycled, 240 tons of cobalt can be recovered each year, which alone is worth more than 40 million. Another example is that the content of nickel in waste NiMH batteries is as high as 30~50%, the cobalt content is about 2~5%, and the rare earth content is 5~10%, which also has great recycling value.
Battery treatment process: The admitted battery is first discharged in brine, then disassembled after drying to recover copper, iron, aluminum and other materials, and the disassembled core is obtained after coarse breaking, pyrolysis, fine breaking sorting and other processes to recover copper powder, aluminum powder, electrode black powder, etc.
Electrode processing process: the electrode is crushed and sorted to recover copper powder, aluminum powder, battery electrode powder, etc.
Exhaust gas recovery process. Discharge unit discharge and fine broken sorting exhaust gas is discharged through cyclone dust removal + cloth bag dust removal through the exhaust, coarse broken and pyrolysis exhaust gas is discharged through the exhaust after secondary combustion, flue gas cooling and activated carbon injection and cloth bag dust removal, low concentration exhaust gas of brine discharge is discharged through the exhaust after alkali spray + activated carbon adsorption.
At present, the main direction of the treatment of waste lithium battery recycling equipment process, mainly divided into two forms, one is the form of lithium battery pole piece material recycling equipment, one is the form of single lithium battery recycling equipment, the current more critical technology is the single lithium battery sorting technology is mature, disassembly does not rely on manual completion, reduce costs. Therefore, in view of the weak process and technical links of recycling, Xingmao has organized joint research between industry, academia and research institutes to break through the key common technologies and effectively reduce production costs; and there is a plan to promote the progress of process technology in a step-by-step manner according to market demand to complete the development of the whole industry's virtuous cycle.
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