CATHODE FOR LITHIUM SECONDARY BATTERY LITHIUM SECONDARY BATTERY INCLUDING THE SAME AND PREPARING METHOD OF LITHIUM SECONDARY BATTERY INCLUDING THE SAME

According to embodiments of the present invention, a positive electrode for a lithium secondary battery may comprise a positive electrode current collector and a positive electrode active material layer formed on the positive electrode current collector and containing positive electrode active mater...

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Bibliographische Detailangaben
Hauptverfasser:	LIM BYOUNG BEOM, JEUN JEONG HOON, DO YOUNG HOON, CHO YONG HYUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	According to embodiments of the present invention, a positive electrode for a lithium secondary battery may comprise a positive electrode current collector and a positive electrode active material layer formed on the positive electrode current collector and containing positive electrode active material particles. The positive electrode active material particles may include first lithium metal oxide particles in the form of secondary particles in which a plurality of primary particles are aggregated, and second lithium metal oxide particles in the form of single particles. The positive electrode may have an isolated porosity defined by Equation 1 of 5% or less. 본 발명의 예시적인 실시예들에 따른 리튬 이차 전지용 양극은 양극 집전체 및 상기 양극 집전체 상에 형성되며 양극 활물질 입자들을 포함하는 양극 활물질층을 포함할 수 있다. 상기 양극 활물질 입자들은 복수의 1차 입자들이 응집된 2차 입자의 형태를 갖는 제1 리튬 금속 산화물 입자 및 단일 입자의 형태를 갖는 제2 리튬 금속 산화물 입자를 포함할 수 있다. 상기 양극은 식 1로 정의되는 고립 기공률이 5% 이하일 수 있다.