CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

Disclosed is a cathode active material (and a secondary battery having the same) comprising a combination of lithium manganese composite oxide with a spinel structure of Formula 1 and an oxide of Formula 2, the material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2-yO4...

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Bibliographische Detailangaben
Hauptverfasser: LEE YOUNKYOUNG, LEE MINHEE, KIM DAEHONG
Format: Patent
Sprache:eng
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Zusammenfassung:Disclosed is a cathode active material (and a secondary battery having the same) comprising a combination of lithium manganese composite oxide with a spinel structure of Formula 1 and an oxide of Formula 2, the material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2-yO4-zAz (1) wherein 0.9@x@1.2, 0