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 including a core including a compound represented by Chemical Formula 1 and a functional layer disposed on a surface of the core, wherein the functional layer includes one different kind of a crystal structure from the cryst...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, Dohyung, LEE, Daehoe, CHOI, Jeonjin, KIM, Minhan, JEON, Gyuran, PARK, Junseok, LIM, Okgyu, KIM, Dongjin, KIM, Ilseok
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 including a core including a compound represented by Chemical Formula 1 and a functional layer disposed on a surface of the core, wherein the functional layer includes one different kind of a crystal structure from the crystal structure of the core, and wherein the positive active material includes about 100 ppm to about 400 ppm of sulfur, and a rechargeable lithium battery including the same. [Chemical Formula 1]Li a Ni x Co y Me z O 2 In Chemical Formula 1, 0.9 ¤ a ¤ 1.1, 0.5 ¤ x ¤ 0.93, 0 < y ¤ 0.3, 0 < z ¤ 0.3, x + y + z =1, and Me is Mn or Al.