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US 12,586,834 B2Granted
Method of selectively removing aluminum from waste electrode and a method of removing metal components from the waste electrode using the method
AssigneeLG Energy Solution, Ltd.
InventorsJeongbae Lee, Youngjoo Choi, Jeong Kyu Kim
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Abstract
A method of removing aluminum from a waste electrode. The method includes comminuting the waste electrode containing a waste current collector and an electrode active material. The method further includes screening the comminuted waste electrode to collect the electrode active material. The method further includes mixing the electrode active material and an alkaline solution to remove aluminum impurities in the electrode active material.
Claims11
A method of removing aluminum from a waste electrode, the method comprising the steps of:
- comminuting the waste electrode containing a waste current collector and an electrode active material;
- screening the comminuted waste electrode to collect the electrode active material;
- and
- mixing the electrode active material and an alkaline solution to remove aluminum impurities in the electrode active material
- wherein the step of comminuting the waste electrode comprises sequentially comminuting the waste electrode using a shredder, a first milling machine having a first speed, and a second milling machine having a second speed, and the second speed is faster than the first speed.
2 more elements
Dependencies are inferred from the claim text.