Car battery and accumulator recycling plant
Application range of battery recycling equipment: power battery positive and negative plates, 18650 lithium battery, waste battery, ternary lithium battery, scrapped car lithium battery, lithium iron phosphate battery, new energy battery and other waste lithium batteries.
The new energy power battery is mainly composed of a shell, a positive electrode, a negative electrode, an electrolyte and a separator. The positive electrode is formed by coating lithium cobalt oxide powder on both sides of the aluminum foil current collector through PVDF that acts as a bond; the negative electrode structure is similar to that of the positive electrode, consisting of carbon The powder is bonded to both sides of the copper foil current collector. Lithium-ion batteries have significant advantages such as high voltage, large specific capacity, long life and no memory effect. Since their commercialization, they have quickly occupied the power source market for portable electronic and electrical equipment, and their output has increased year by year. The service life is about 2 years. If the scrapped lithium battery is improperly disposed of, the lithium hexafluorophosphate, carbonate organic compounds, cobalt, copper and other heavy metals will inevitably cause potential pollution to the environment.
What equipment is needed for new energy battery recycling? SUNY GROUP new energy power battery positive and negative sheet processing equipment usually consists of the following equipment, charged lithium battery crusher, electrolyte thermal volatilization device, pole piece friction de-powder air classification equipment, crushed lithium battery Comprehensive sorting device, lithium battery automatic discharge device, oxygen-free cracking furnace. Different specific programs are determined according to different needs.
The charged lithium battery is broken into oxygen-depleted heating and volatilization. The first of the double volatilization is the thermal volatilization without nitrogen, which can reduce the amount of nitrogen. The film is softened and formed into a group), and volatilization ensures that the oxygen content is below 1%. Heating and volatilization utilizes pyrolysis combustion exhaust gas heating and charged lithium electric power generation heating, so as to realize electrified discharge and pyrolysis exhaust gas waste heat reuse; an explosion-proof combustion system is provided to improve equipment operation safety, and the volatilized electrolyte gas is extracted by negative pressure and transported to the pyrolysis combustion system separately. Heat supply (separate transport to prevent the explosion of organic gas containing oxygen), to achieve comprehensive utilization of sorting waste gas and volatile gas.
The charged lithium battery is fed into the anaerobic feed and is depleted in oxygen and crushed, and sent to the inert protective gas for circulating air separation. The air separation and magnetic eddy separation separate the iron, aluminum blocks, copper blocks, stainless steel and plastic shells, and select the pole pieces and diaphragms. , plastics, etc. enter the anaerobic cracking furnace, the combustible gas generated by cracking is filtered to supply heat to the cracking system, and the crushed material of the charged lithium battery is discharged at high temperature in the furnace to generate heat, so that the electric energy can be used for the second time.
After the cracking, the pole piece vaporizes the binder, and the pole piece undergoes simple friction and powder removal screening and classification to separate the pole powder from the metal particles. Combustion exhaust gas is discharged after cooling spray, water vapor separation and adsorption.
Waste power batteries contain copper and aluminum metals, positive and negative active materials, and plastic separators. The use of waste lithium battery recycling and processing equipment can achieve good sorting significance. Qin Taisheng's utility model lithium battery recycling and processing equipment improves the utilization rate of power lithium batteries, new energy lithium batteries, lithium ion batteries, and lithium battery positive and negative materials by 10%, and the content of lithium cobalt oxide in copper and aluminum metals is as low as 2%. The sorting rate of plastic diaphragms is 20% higher than the industry level. Qin SUNY GROUP has a complete set of lithium battery crushing equipment treatment process equipment flow line to achieve sustainable development of waste lithium ion batteries, so the separation and recycling of waste lithium ion batteries in the utilization of positive and negative sheet metals is promising.
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