Method for Recycling Copper Foil and Aluminum Foil from Waste Lithium Batteries

Due to its high energy density, light weight, high voltage, safety and less environmental pollution, lithium-ion batteries are widely used in notebook computers, mobile phones, cameras and other electronic devices. At the same time, the rapidly developing new energy automobile industry in recent years also uses lithium-ion battery packs as its power source. Due to the impact of lithium-ion battery cycle life, the number of lithium-ion batteries that will be scrapped every year is staggering, and this number is increasing year by year. Waste lithium-ion batteries contain a variety of valuable metals and harmful substances, so the effective recycling of waste lithium-ion batteries not only has high economic benefits, but also reduces environmental pollution. The recycling of lithium-ion batteries is inevitable.

Products after lithium battery recycling

At present, most of the recycling and reuse of waste lithium-ion batteries focus on positive electrode materials, and great progress has been made. As for the recovery of positive and negative current collectors, relatively little attention has been paid to it. Among the currently known treatment processes, some use discharge, manual disassembly, heating, and ultrasonic cleaning to separate the positive and negative electrode materials, thereby realizing the recovery of copper foil and aluminum foil. . Some use electric discharge, mechanical crushing, ultrasonic agitation and cleaning to remove positive and negative electrode materials, so as to realize the recovery of copper foil and aluminum foil. Some use wet leaching process to recycle copper foil and aluminum foil. These methods have their own advantages, but the process is complicated, the efficiency is not high, the cost is high, and the environmental protection is not enough.

New lithium battery recycling production line

Therefore, there is a need for a simple and efficient method that does not cause secondary pollution to the environment to recycle copper and aluminum foils in waste lithium-ion batteries, so as to achieve resource conservation, improve economic benefits, and reduce environmental pollution.

SUNY GROUP's method for copper foil and aluminum foil in waste lithium-ion batteries includes the following steps: (1) put the discharged waste lithium-ion batteries into the roller crusher and vertical impact crusher, and crush them in two stages The product is put into the vibrating screen for screening and classification. The product is divided into three grades, and the middle grade is taken; (2) The mixture of the middle grade is separated by high-voltage electrostatic separation, the diaphragm and plastic are removed, and the product is put into the horizontal crusher. , to crush the mixture of copper foil and aluminum foil to the target particle size; (3) Sorting the product of the horizontal crusher through a vibrating fluidized bed, the light product is discharged through the upper part to obtain aluminum foil, and the heavy product is discharged through a scraper to obtain copper foil. Lujie environmental protection lithium battery recycling equipment realizes the separation and recycling of copper foil and aluminum foil in waste lithium ion batteries, which has strong operability, environmental protection and low cost. If you are interested in lithium battery recycling, or have any questions, please feel free to contact us for consultation.