CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to a cathode and a lithium secondary battery manufactured using same, the cathode comprising a first active material layer and a second active material layer that are sequentially stacked on a cathode current collector, wherein a conductive material included in the firs...

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Main Authors KIM, Dong Hyun, LEE, Jong Won, CHOI, Hyeon, CHOY, Sang Hoon, YOO, Houng Sik, YANG, Gui Eum
Format Patent
LanguageEnglish
French
Korean
Published 06.06.2024
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Summary:The present invention relates to a cathode and a lithium secondary battery manufactured using same, the cathode comprising a first active material layer and a second active material layer that are sequentially stacked on a cathode current collector, wherein a conductive material included in the first active material layer is a linear conductive material, and the amount of the linear conductive material included in the first active material layer is higher than that of the second active material layer such that adhesiveness between the cathode current collector and the cathode active material layers is increased. La présente invention concerne une cathode et une batterie secondaire au lithium fabriquée à l'aide de celle-ci, la cathode comprenant une première couche de matériau actif et une seconde couche de matériau actif qui sont empilées séquentiellement sur un collecteur de courant de cathode, un matériau conducteur compris dans la première couche de matériau actif étant un matériau conducteur linéaire, et la quantité du matériau conducteur linéaire compris dans la première couche de matériau actif étant supérieure à celle de la seconde couche de matériau actif de telle sorte que l'adhésivité entre le collecteur de courant de cathode et les couches de matériau actif de cathode est accrue. 본 발명은 양극 및 이를 이용하여 제조된 리튬 이차전지에 관한 것으로, 양극 집전체 상에 순차 적층된 제1 활물질층 및 제2 활물질층을 포함하고, 제1 활물질층에 포함된 도전재는 선형 도전재로 하며, 제2 활물질층보다 제1 활물질층에 포함된 선형 도전재의 함량을 높여 양극 집전체와 양극 활물질층 간의 접착력을 높이는 효과가 있다.
Bibliography:Application Number: WO2023KR19400