Method for recovering lithium from a waste lithium secondary battery using a pyrometallugical process
AssigneeYoung Poong Corporation
InventorsNam Il Moon, Ho Jo Lee, Eung Bae Kim
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Abstract
The present invention relates to a method for recovering lithium from a waste lithium secondary battery using a pyrometallurgical smelting method, which comprises a step for melting a waste lithium secondary battery containing nickel, cobalt, copper, and lithium, a flux having a melting temperature of 1,400° C. or less, and a lithium recovery agent to separate and obtain a slag, metal phase and lithium compound, wherein the lithium recovery agent includes at least one of chlorine and fluorine, and wherein the amount of each of nickel, cobalt and copper contained in the metal phase is more than 10 times compared to that of the slag.
Claims18
A method for recovering lithium from a waste lithium secondary battery using a pyrometallurgical smelting method, which comprises a step for melting
- a waste lithium secondary battery containing nickel, cobalt, copper and lithium, a flux having a melting temperature of 1,400° C. or less, and a lithium recovery agent to separate and obtain a slag, metal phase and lithium compound,
- wherein the lithium recovery agent includes at least one of chlorine and fluorine, and
- wherein the amount of each of the nickel, cobalt and copper contained in the metal phase is more than 10 times compared to that of the slag.
Dependencies are inferred from the claim text.