METHOD FOR RECOVERING VALUABLE MATERIAL FROM LITHIUM ION SECONDARY BATTERY

PROBLEM TO BE SOLVED: To provide a method for efficiently recovering valuable metal, such as cobalt and/or nickel and lithium, from a scrapped lithium ion secondary battery at low cost.SOLUTION: A method for recovering valuable materials from a lithium ion secondary battery is a method for extractin...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAJIMA MICHIO, TAKAHASHI NAOKI, OKADA TAKAYUKI, KOTO YUSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for efficiently recovering valuable metal, such as cobalt and/or nickel and lithium, from a scrapped lithium ion secondary battery at low cost.SOLUTION: A method for recovering valuable materials from a lithium ion secondary battery is a method for extracting lithium and cobalt and/or nickel from a lithium ion secondary battery including manganese, lithium, and cobalt and/or nickel, and includes the steps of: producing a slurry by dissolving a positive electrode active material into sulfuric acid; and adding a hydrogen peroxide solution to the slurry, thereafter making a filtrate contain lithium and cobalt and/or nickel, and separating lithium and cobalt and/or nickel by taking manganese into a residue.