CATHOD ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A cathode active material for a lithium ion secondary battery is provided to ensure excellent cycleability and suppressing the elution of cobalt ions affecting cycleability. A cathode active material for a lithium ion secondary battery is a lithium transition metal mixed oxide containing magnesium a...

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1. Verfasser:	OOISHI YOSHIHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Zusammenfassung:	A cathode active material for a lithium ion secondary battery is provided to ensure excellent cycleability and suppressing the elution of cobalt ions affecting cycleability. A cathode active material for a lithium ion secondary battery is a lithium transition metal mixed oxide containing magnesium atom and sulfate group, obtained by mixing a lithium compound, a transition metal compound, a magnesium compound and sulfate and plasticizing the mixture. The magnesium compound is obtained by using the halide of magnesium or by using the oxide of magnesium, hydroxide and carbonate together.