RECYCLE PROCESSING METHOD AND DEVICE FOR LITHIUM SECONDARY BATTERY ELECTRODE MATERIAL

PROBLEM TO BE SOLVED: To provide a recycle processing method and a device for lithium secondary battery electrode material, in which processing can be carried out in a simpler process and in a shorter time, especially a method of recovering lithium from the positive electrode material of the lithium...

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Hauptverfasser:	AZUMA TATSUHIRO, HIRATA SHINGO, YAMAZAKI SEIICHIRO, TSUNODA TOSHIYA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMISTRY DISPOSAL OF SOLID WASTE ELECTRICITY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PERFORMING OPERATIONS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a recycle processing method and a device for lithium secondary battery electrode material, in which processing can be carried out in a simpler process and in a shorter time, especially a method of recovering lithium from the positive electrode material of the lithium secondary battery. SOLUTION: Lithium oxide is produced by causing reductive reaction in lithium cobaltate, which is the material for the positive electrode of the lithium secondary battery, and metal lithium in lithium chloride melted salt, and settling and separating cobalt or cobalt oxide is carried out. Then, lithium oxide is electrolyzed in the lithium chloride melted salt, metal lithium is deposited on the negative electrode and recovered. COPYRIGHT: (C)2005,JPO&NCIPI