LITHIUM BATTERY PROCESSING METHOD

PROBLEM TO BE SOLVED: To provide a processing method of a lithium battery having a fluorine based electrolyte in which the electrolyte is effectively converted into a morphology of good handling nature. SOLUTION: The processing method comprises a hydrolysis process (step 240) in which the treating m...

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Hauptverfasser:	YAMAZAKI HIROSUKE, ARIMURA KAZUTAKA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ELECTRICITY FERROUS OR NON-FERROUS ALLOYS 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a processing method of a lithium battery having a fluorine based electrolyte in which the electrolyte is effectively converted into a morphology of good handling nature. SOLUTION: The processing method comprises a hydrolysis process (step 240) in which the treating material containing lithium-transition metal-containing complex oxide (positive electrode active material etc.) and aluminum member (positive electrode current collector etc.) is treated in a high temperature high humidity atmosphere. In this process, lithium hydroxide is generated from the compound oxide and a hydroxide of aluminum is generated from the aluminum member. The aluminum hydroxide originated from the hydroxide is reacted with fluorine-containing substance (for example, PF5) obtained by heating and removing the electrolyte (for example, LiPF6) from the lithium battery (step 282), and a substance with good handling nature (for example, AlF3and AlPO4) is generated (step 284). COPYRIGHT: (C)2005,JPO&NCIPI