POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Disclosed are a positive active material for a rechargeable lithium battery, and rechargeable lithium battery including the same. The positive active material for a rechargeable lithium battery includes a first positive active material including a secondary particle including lithium nickel-based co...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Jinhwa, YANG, Wooyoung, IM, Jongsan, KIM, Minhan, CHAE, Youngjoo, SEOG, Jihyun, LEE, Soonrewl, CHOI, Ickkyu, KIM, Jongmin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	Disclosed are a positive active material for a rechargeable lithium battery, and rechargeable lithium battery including the same. The positive active material for a rechargeable lithium battery includes a first positive active material including a secondary particle including lithium nickel-based composite oxide wherein in the secondary particle, a plurality of primary particles are aggregated, and zirconium on the surface of the secondary particle, and a second positive active material including a single particle including lithium nickel-based composite oxide and zirconium on the surface of the single particle, wherein a ratio of a Zr content (at%) relative to all elements on the surface of the single particle of the second positive active material to a Zr content (at%) to all elements on the surface of the secondary particle of the first positive active material is about 1.5 to about 3.0.