POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ELECTRODE INCLUDING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

The present exemplary embodiments relate to a positive active material for a lithium secondary battery, a positive electrode including the same, and a lithium secondary battery including the same. A positive active material for lithium secondary batteries according to an exemplary embodiment include...

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Bibliographische Detailangaben
Hauptverfasser:	CHOI, Kwon Young, YU, Byong Yong, PARK, Jong Il, HONG, Kijoo, LEE, Sang Hyuk, NAM, Sang Cheol
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The present exemplary embodiments relate to a positive active material for a lithium secondary battery, a positive electrode including the same, and a lithium secondary battery including the same. A positive active material for lithium secondary batteries according to an exemplary embodiment include:a first metal oxide, which includes nickel, cobalt and manganese, is in single particle form; and a second metal oxide that contains nickel, cobalt, and manganese and is in the form of a secondary particle containing a plurality of primary particles and has an average particle diameter D50 larger than that of the first metal oxide; wherein, a nickel content of the second metal oxide is 0.8 mol or more, based on 1 mole of the total of nickel, cobalt and manganese in the second metal oxide, and a nickel content of the first metal oxide is 0.03 mole to 0.17 mole more than the nickel content of the second metal oxide.