CATHODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES METHOD FOR MANUFACTURING THE SAME AND LITHIUM ION SECONDARY BATTERIES INCLUDING THE SAME

The present invention relates to a composite positive electrode active material which comprises: a core comprising a lithium transition metal oxide doped with nickel (Ni) and at least one element selected from Group 4 to Group 13 elements and made of a layered crystal phase belonging to an R-3m spac...

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Bibliographische Detailangaben
Hauptverfasser:	CHO JAE PHIL, YOON MOON SU
Format:	Patent
Sprache:	eng ; kor
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:	The present invention relates to a composite positive electrode active material which comprises: a core comprising a lithium transition metal oxide doped with nickel (Ni) and at least one element selected from Group 4 to Group 13 elements and made of a layered crystal phase belonging to an R-3m space group; and a coating layer comprising a cobalt compound disposed on a surface of the core. The structural stability of the composite positive electrode active material is enhanced. 니켈(Ni) 및 4족 내지 13족 원소 중 1종 이상의 원소로 도핑되고, R-3m 공간군에 속하는 층상 구조 결정상으로 이루어진 리튬전이금속산화물을 포함한 코어; 및 상기 코어 표면 상에 배치되는 코발트 화합물을 포함하는 코팅층;을 포함하는 복합양극활물질에 관한 것이다.