METHOD OF RECYCLING ACTIVE METAL OF LITHIUM SECONDARY BATTERY UTILIZING THE SAME

A method of recovering an active metal of a lithium secondary battery according to an embodiment of the present invention comprises the following steps of: preparing a waste cathode active material mixture obtained from a waste cathode of a lithium secondary battery; forming a preliminary precursor...

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Bibliographische Detailangaben
Hauptverfasser:	KANG HAENG GOO, SON SUNG REAL
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method of recovering an active metal of a lithium secondary battery according to an embodiment of the present invention comprises the following steps of: preparing a waste cathode active material mixture obtained from a waste cathode of a lithium secondary battery; forming a preliminary precursor mixture by making the waste cathode active material mixture react with a reaction gas in a fluidized bed reactor; cooling the preliminary precursor mixture by spraying a first refrigerant and a second refrigerant to the preliminary precursor mixture; and selectively recovering the lithium precursor from the preliminary precursor mixture, and the recovery efficiency of the lithium secondary battery may be improved. 본 발명의 실시예들에 따른 리튬 이차 전지의 활성 금속 회수 방법은 리튬 이차 전지의 폐 양극으로부터 획득된 폐 양극 활물질 혼합물을 준비하는 단계, 폐 양극 활물질 혼합물을 유동층 반응기 내에서 반응가스와 반응시켜 예비 전구체 혼합물을 형성하는 단계, 예비 전구체 혼합물에 제1 냉매 및 제 2 냉매를 분사하여, 예비 전구체 혼합물을 냉각시키는 단계, 및 예비 전구체 혼합물로부터 선택적으로 리튬 전구체를 회수하는 단계를 포함하여, 리튬 이차 전지의 회수 효율이 향상될 수 있다.