Lithium battery pole piece crushing and recycling equipment solutions
Release Time：2022-11-22 Source：Lithium battery recycling equipment Share：
Lithium battery crushing and recycling equipment: positive and negative pole material and a small amount of plastic into the friction decomposer for metal copper and aluminum positive and negative pole powder plastic decomposition, and then through the collection, screening, specific gravity sorting will be separated from all kinds of materials, pole piece off the pole powder and then into the cracking to remove organic matter.
The working principle of waste lithium battery recycling equipment: organic solvent dissolves the binder pvdf on the electrode to make lithium cobaltate come off from the aluminum foil, its dissolution best solid-liquid ratio is 1.68g:10ml, the solvent can be recycled through distillation, and another N-methylpyrrolvanone as a solvent to dip and wash the positive electrode at 120 degrees. The organic solvent method can effectively sort the pole powder from the aluminum foil and reuse the solvent by distillation, but the cost of organic solvent is high, and the equipment cost and operation are also high, which is difficult to realize the enterprise industry.
Waste lithium battery recycling technology:
(Organic solvents are N-methylpyrrolidone (NMP), N,N-dimethylformamide (DMF) dimethyl alum (DMSO) acetone, etc., because acetone DMSPO volatile, better for organic adhesives NMP and DMF. taking into account the use of water solvent adhesives in the existing lithium-ion power batteries, adhesives screening with water and ethanol.
Waste lithium battery recycling one-stop solution of waste residue treatment technology
Lithium battery pole piece crushing and recycling equipment
The graphite residue of positive electrode flake is crushed into the sorting system by ball mill, and according to the difference of aerophilicity and hydrophilicity of graphite and salt residue, graphite and salt residue are separated out separately; salt residue can be used for building materials after simple treatment; graphite is then dewatered and dried and flotation agent is removed by fire method to get a more pure graphite, which is a mixture of natural graphite and artificial graphite, and the graphite can be used for graphite crucible and Graphite rods to add raw materials.
Cracking technology and waste gas treatment of one-stop solution for recycling and treatment of used lithium batteries
Advantages: the furnace is embedded, the material into the furnace to push back and forth, the furnace set furnace occupies a small area, high energy utilization, organic gas generated in the process of lithium crushing and recycling, cracking gas and lithium battery thermal volatilization generated by electrolyte waste gas into the combustion system to burn for self-use, and then use the excess waste gas generated by crushing and sorting for combustion and oxygen replenishment, so as to achieve the comprehensive use of various waste gas combustion and cracking for heat, combustion for heat The exhaust gas is heated by the heat exchanger to the volatile system and then simply treated to meet the standard emission, the process does not need to invest in large operating costs of the waste gas RTO thermal storage combustion system.