Lithium secondary battery

A lithium secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and more particularly, the positive electrode includes a positive active material including lithium-metal oxide in which at least one metal has a continuous concentration gradient from the...

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Bibliographische Detailangaben
Hauptverfasser: HAN, KOOK-HYUN, LIM, JIN-SUB, HWANG, DUCKUL
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A lithium secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and more particularly, the positive electrode includes a positive active material including lithium-metal oxide in which at least one metal has a continuous concentration gradient from the center to the surface, and the negative electrode includes a negative active material including graphite having an average lattice distance (d002) in the range of 3.356 to 3.365 angstroms, thereby improving storage characteristics at a high temperature and lifetime characteristics.