TRANSITION METAL PRECURSOR FOR PREPARING CATHODE ACTIVE MATERIAL

The present invention relates to a transition metal-containing precursor for preparing a cathode active material for a lithium secondary battery, and provides a transition metal precursor comprising a first precursor and a second precursor having an average diameter (D50) relatively smaller than tha...

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Bibliographische Detailangaben
Hauptverfasser:	JEONG, In Taek, PYO, Je Jung, PARK, Sun Hong, JEONG, Hyun Do, JO, Hyun Tak, CHANG, Sung Kyun
Format:	Patent
Sprache:	eng ; fre ; 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 transition metal-containing precursor for preparing a cathode active material for a lithium secondary battery, and provides a transition metal precursor comprising a first precursor and a second precursor having an average diameter (D50) relatively smaller than that of the first precursor, wherein the ratio (the BET of the first precursor/the BET of the second precursor) of the BET of the first precursor to the BET of the second precursor is 0.3-3.5. La présente invention concerne un précurseur contenant un métal de transition pour préparer un matériau actif de cathode pour une batterie secondaire au lithium, et fournit un précurseur de métal de transition comprenant un premier précurseur et un second précurseur ayant un diamètre moyen (D50) relativement plus petit que celui du premier précurseur, le rapport (la surface BET du premier précurseur/la surface BET du second précurseur) de la surface BET du premier précurseur à la surface BET du second précurseur est de 0,3 à 3,5. 본 발명은 리튬 이차전지용 양극 활물질의 제조를 위한 전이금속 함유 전구체로서, 제 1 전구체 및 상기 제 1 전구체보다 평균 입경(D50)이 상대적으로 작은 제 2 전구체를 포함하고 있고, 상기 제 2 전구체의 BET에 대한 제 1 전구체의 BET의 비(제 1 전구체의 BET/제 2 전구체의 BET)가 0.3 내지 3.5의 범위인 것을 특징으로 하는 전이금속 전구체를 제공한다.