METHOD FOR PRODUCING TRANSITION METAL HYDROXIDE

PROBLEM TO BE SOLVED: To increase the recovery rate of a transition metal hydroxide in a liquid/solid separation step for the precipitated slurry in a production method of the transition metal hydroxide which is a precursor for a positive electrode of a secondary battery.SOLUTION: The method for pro...

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Hauptverfasser:	OBAYASHI YASUGA, OTANI TAKEHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:	PROBLEM TO BE SOLVED: To increase the recovery rate of a transition metal hydroxide in a liquid/solid separation step for the precipitated slurry in a production method of the transition metal hydroxide which is a precursor for a positive electrode of a secondary battery.SOLUTION: The method for producing a transition metal hydroxide includes a step in which precipitated slurry is obtained by bringing a transition metal-containing solution into contact with an alkali and the precipitated slurry is subjected to liquid/solid separation. Coagulated particles of the transition metal is formed by bringing the precipitated slurry in contact with a coagulant. The precipitated slurry is then separated into liquid and solid.