ELECTRODE ASSEMBLY, SECONDARY BATTERY INCLUDING SAME, AND METHOD FOR MANUFACTURING SAME

The present invention provides an electrode assembly, which can reduce resistance and improve a process property, a secondary battery including same, and a method for manufacturing same. For example, disclosed is an electrode assembly comprising: a first electrode plate having a first electrode tab...

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Bibliographic Details
Main Authors JEONG, Hyun Ki, CHOI, Min Yeol
Format Patent
LanguageEnglish
French
Korean
Published 31.10.2019
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Summary:The present invention provides an electrode assembly, which can reduce resistance and improve a process property, a secondary battery including same, and a method for manufacturing same. For example, disclosed is an electrode assembly comprising: a first electrode plate having a first electrode tab attached thereto; a plurality of second electrode plates having second electrode tabs attached thereto, respectively; and a separator interposed between the first electrode plate and the plurality of second electrode plates, wherein the first electrode plate, the separator, and the plurality of second electrode plates are wound in a state of being stacked on one another, and the second electrode tabs are formed to be symmetrical to each other on the basis of a winding center thereof. La présente invention concerne un ensemble électrode, qui peut réduire la résistance et améliorer une propriété de traitement, une batterie secondaire le comprenant, et son procédé de fabrication. Par exemple, l'invention concerne un ensemble électrode comprenant : une première plaque d'électrode ayant une première languette d'électrode fixée sur cette dernière ; une pluralité de secondes plaques d'électrode ayant des secondes languettes d'électrode fixées à ces dernières, respectivement ; et un séparateur interposé entre la première plaque d'électrode et la pluralité de secondes plaques d'électrode, la première plaque d'électrode, le séparateur et la pluralité de secondes plaques d'électrode étant enroulés dans un état d'empilement l'un sur l'autre, et les secondes languettes d'électrode étant formées pour être symétriques l'une par rapport à l'autre sur la base d'un centre d'enroulement associé. 본 발명에서는 저항을 줄이고 공정성을 개선할 수 있는 전극 조립체, 이를 포함하는 이차 전지 및 그 제조 방법이 개시된다. 일 예로, 제 1 전극탭이 부착된 제 1 전극판; 제 2 전극탭이 각각 부착된 복수의 제 2 전극판; 및 상기 제 1 전극판과 상기 복수의 제 2 전극판 사이에 개재된 세퍼레이터를 포함하되, 상기 제 1 전극판, 상기 세퍼레이터 및 상기 복수의 제 2 전극판이 적층된 상태로 권취되는 전극 조립체에 있어서, 상기 제 2 전극탭은 권취 중심을 기준으로 대칭되어 형성된 전극 조립체가 개시된다.
Bibliography:Application Number: WO2019KR04807