CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

A positive electrode active material precursor for a lithium secondary battery according to embodiments of the present invention has a nickel complex hydroxide structure, wherein an oxygen position in the Z-axis direction measured by a Rietveld method is greater than 0.21 in a space group P-3m cryst...

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Bibliographische Detailangaben
Hauptverfasser: YOON JEONG BAE, CHOI JE NAM, KWEON HEE JUN, NOH MI JUNG
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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Zusammenfassung:A positive electrode active material precursor for a lithium secondary battery according to embodiments of the present invention has a nickel complex hydroxide structure, wherein an oxygen position in the Z-axis direction measured by a Rietveld method is greater than 0.21 in a space group P-3m crystal structure through X-ray diffraction (XRD) analysis. Through the positive electrode active material precursor, a positive electrode active material with a stabilized crystal structure and a lithium secondary battery can be implemented. 본 발명의 실시예들에 따른 리튬 이차 전지용 양극 활물질 전구체는 니켈 복합 수산화물 구조를 가지며, X선 회절(X-ray diffraction: XRD) 분석을 통한 공간군 P-3m 결정 구조에서 리트벨트법에 의해 측정되는 Z축 방향 산소 위치가 0.21이상이다. 양극 활물질 전구체를 통해 결정 구조가 안정화된 양극 활물질 및 리튬 이차 전지를 구현할 수 있다.