ELECTRODE ASSEMBLY WITH INSULATION FILM FORMED ON TAB, MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

The present invention relates to an electrode assembly comprising an electrode, a separator, and a counter electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery comprising same, wherein: the electrode has a structure in which an electrode active m...

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Bibliographic Details
Main Authors YUN, Hyunwoong, HAH, Hoejin
Format Patent
LanguageEnglish
French
Korean
Published 02.09.2021
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Summary:The present invention relates to an electrode assembly comprising an electrode, a separator, and a counter electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery comprising same, wherein: the electrode has a structure in which an electrode active material layer is formed on an electrode current collector comprising an electrode current collection substrate and a tab extending from the electrode current collection substrate; the tab has an insulation film formed on a part or entirety of at least one surface thereof; and the insulation film is an organic-inorganic composite film comprising an inorganic particle and a binder polymer. La présente invention concerne un ensemble d'électrodes comprenant une électrode, un séparateur, et une contre-électrode pour une batterie secondaire au lithium, un procédé de fabrication de ceux-ci, et une batterie secondaire au lithium le comprenant, l'électrode ayant une structure dans laquelle une couche de matériau actif d'électrode est formée sur un collecteur de courant d'électrode comprenant un substrat de collecte de courant d'électrode et une languette s'étendant à partir du substrat de collecte de courant d'électrode ; la languette a un film isolant formé sur une partie ou la totalité d'au moins une surface de celle-ci ; et le film isolant est un film composite organique-inorganique comprenant une particule inorganique et un polymère liant. 본 발명은 전극, 분리막, 및 대향 전극을 포함하는 리튬 이차전지용 전극 조립체로서, 상기 전극은 전극 집전 기재 및, 상기 전극 집전 기재로부터 연장된 탭을 포함하는 전극 집전체 상에 전극 활물질층이 형성되어 있는 구조이며, 상기 탭의 적어도 일면의 일부 또는 전부에는, 절연필름이 형성되어 있고, 상기 절연필름은 무기물 입자 및 바인더 고분자를 포함하는 유무기 혼합 필름인 전극 조립체, 이의 제조방법, 및 이를 포함하는 리튬 이차전지에 관한 것이다.
Bibliography:Application Number: WO2021KR01228