Method for recovering positive pole material of Li-ion battery
A lithium-ion battery and cathode material technology, applied in the field of battery cathode material recycling, can solve problems such as high cost, low recycling efficiency, and many processes, and achieve the effect of reducing recycling procedures, reducing recycling costs, and high application value
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Embodiment 1
[0022] This example illustrates the method for recycling the battery cathode material of the present invention.
[0023] 500 grams of the positive sheet of the lithium-ion battery to be recycled (containing positive electrode active material LiCoO 2 440 grams) is soaked in 2.5L organic solvent, and described organic solvent contains the N of 2L, the ethanol of N-dimethylformamide and 0.5L, and the temperature of described organic solvent is 40 ℃, carries out ultrasonic oscillation ( The ultrasonic frequency is 50KHz), the soaking time is 20 minutes, and then the current collector is taken out, and the organic solvent is filtered. The obtained filtrate was baked at 100° C. for 1 hour to obtain the positive electrode active material A1. Table 1 shows the weight and recovery rate of the recovered positive electrode active material A1.
[0024] Wherein, the recovery rate=the weight of the positive electrode active material recovered / the positive electrode sheet contained in the ...
Embodiment 2
[0031] The positive electrode material is reclaimed according to the method of Example 1, and the difference is that the consumption of the organic solvent is 5L, and the organic solvent contains 3L of N, N-dimethylformamide and 2L of ethanol, and the amount of the organic solvent The temperature is 50° C., and the soaking time is 30 minutes. Finally, positive electrode active material A2 was obtained. Table 1 shows the weight and recovery rate of the recovered positive electrode active material A2.
Embodiment 3
[0033] Reclaim positive electrode material according to the method for embodiment 1, difference is, the amount of described organic solvent is 6L, and described organic solvent contains the N of 5L, the acetone of N-dimethylformamide and 1L, the temperature of described organic solvent 60°C, soaking time is 40 minutes. Finally, positive electrode active material A3 was obtained. Table 1 shows the weight and recovery rate of the recovered positive electrode active material A3.
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Abstract
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Application Information
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