JELLY ROLL-TYPE ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING SAME

The present invention relates to a jelly roll-type electrode assembly in which a first separator, a negative electrode, a second separator, and a positive electrode are sequentially stacked and wound, wherein: the positive electrode includes a first surface in a winding axis direction of the jelly r...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOO, Seongmo, LEE, Kwan Soo, PARK, Eun Ji, KIM, Young Soo, LEE, Byeongjoon
Format: Patent
Sprache:eng ; fre ; kor
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Beschreibung
Zusammenfassung:The present invention relates to a jelly roll-type electrode assembly in which a first separator, a negative electrode, a second separator, and a positive electrode are sequentially stacked and wound, wherein: the positive electrode includes a first surface in a winding axis direction of the jelly roll-type electrode assembly, and a second surface opposite the first surface; and a core portion of the electrode assembly includes a separator overlapping portion between the positive electrode and the negative electrode facing the first surface of the positive electrode, the separator overlapping portion having at least three layers of overlapping separators. La présente invention concerne un ensemble électrode de type rouleau de gelée dans lequel un premier séparateur, une électrode négative, un second séparateur et une électrode positive sont empilés et enroulés de manière séquentielle : l'électrode positive comprenant une première surface dans une direction d'axe d'enroulement de l'ensemble électrode de type rouleau de gelée, et une seconde surface opposée à la première surface ; et une partie centrale de l'ensemble électrode comprend une partie de chevauchement de séparateur entre l'électrode positive et l'électrode négative faisant face à la première surface de l'électrode positive, la partie de chevauchement de séparateur ayant au moins trois couches de séparateurs se chevauchant. 본 발명은 제1 분리막, 음극, 제2 분리막 및 양극이 차례대로 적층되어 권취된 젤리롤형 전극 조립체이 있어서, 상기 양극은 상기 젤리롤형 전극조립체의 권취축 방향인 제1면과, 상기 제1면의 반대면인 제2면을 포함하고, 상기 전극조립체의 코어부는 상기 양극과 상기 양극의 제1면에 대향하는 상기 음극 사이에 분리막 중첩부를 포함하고, 상기 분리막 중첩부는 중첩되어 배치되는 분리막이 3겹 이상인 전극 조립체에 관한 것입니다.