POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Disclosed is a positive active material for a rechargeable lithium battery that includes a first compound represented by Chemical Formula 1 and a second compound having a smaller particle diameter than the first compound and represented by Chemical Formula 2, wherein the first compound and the secon...

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Bibliographische Detailangaben
Hauptverfasser: Hong, Mingzi, Kim, Young-Ki, Hong, Soonkie, Chae, Youngjoo, Lee, Soonrewl, Choi, Ickkyu, Park, Jungjoon
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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Zusammenfassung:Disclosed is a positive active material for a rechargeable lithium battery that includes a first compound represented by Chemical Formula 1 and a second compound having a smaller particle diameter than the first compound and represented by Chemical Formula 2, wherein the first compound and the second compound have a Ni content of about 50 at% to about 60 at% of the metal elements excluding Li, and a rechargeable lithium battery including the first compound and the second compound satisfies Relation 1 in a differential capacity (dQ/dV)-voltage charge/discharge graph.