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US 2026/0155472 A1Published application
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.
Claims14
A method of removing a metal component 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;
- mixing the electrode active material and an alkaline solution to remove aluminum impurities in the electrode active material;
- and
- leaching metal ions by adding an acid to the electrode active material from which the aluminum impurities have been removed.
2 more elements
Dependencies are inferred from the claim text.