METAL FOIL FOR CURRENT COLLECTOR, CURRENT COLLECTOR FOR SECONDARY BATTERY MANUFACTURED USING SAME, AND SECONDARY BATTERY COMPRISING SAME

The present invention relates to a metal foil for a current collector, a current collector for a secondary battery, and a secondary battery comprising same. The metal foil for a current collector comprises: a first cut portion including a plurality of first cut lines formed to be spaced apart in a f...

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Bibliographic Details
Main Authors STREEL, Michel, DEVAHIF, Thomas, MOON, Honggi
Format Patent
LanguageEnglish
French
Korean
Published 27.06.2024
Subjects
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Summary:The present invention relates to a metal foil for a current collector, a current collector for a secondary battery, and a secondary battery comprising same. The metal foil for a current collector comprises: a first cut portion including a plurality of first cut lines formed to be spaced apart in a first direction; and a second cut portion including a plurality of second cut lines formed to be spaced apart in the first direction, wherein the first cut portion and the second cut portion are formed in multiple, are alternately arranged in parallel so as to be spaced apart from each other in a second direction, which is perpendicular to the first direction, are arranged in a zigzag form such that an end portion of each of the plurality of first cut portions mutually overlaps an end portion of each of the plurality of second cut portions so as to form an overlapped portion, and satisfy specific relational expressions 1 and 2. La présente invention concerne une feuille métallique pour un collecteur de courant, un collecteur de courant pour une batterie secondaire, et une batterie secondaire comprenant celui-ci. La feuille métallique pour un collecteur de courant comprend : une première partie découpée comprenant une pluralité de premières lignes de coupe formées pour être espacées dans une première direction; et une seconde partie découpée comprenant une pluralité de secondes lignes de coupe formées pour être espacées dans la première direction, la première partie découpée et la seconde partie découpée étant formées en multiples exemplaires, étant disposées en alternance en parallèle de façon à être espacées les unes des autres dans une seconde direction, qui est perpendiculaire à la première direction, étant agencées en zigzag de telle sorte qu'une partie d'extrémité de chaque partie de la pluralité de premières parties découpées chevauche mutuellement une partie d'extrémité de chaque partie de la pluralité de secondes parties découpées de façon à former une partie chevauchée, et satisfaisant les expressions relationnelles spécifiques 1 et 2. 본 발명은 집전체용 금속박, 전지용 집전체 및 이를 포함하는 이차전지에 관한 것으로, 상기 집전체용 금속박은 제 1 방향으로 이격 형성된 복수의 제 1 절개선을 포함하는 제 1 절개부; 및 제 1 방향으로 이격 형성된 복수의 제 2 절개선을 포함하는 제 2 절개부를 포함하고, 상기 제 1 절개부 및 제 2 절개부는 각각 복수개로, 상기 제 1 방향과 수직한 제 2 방향을 따라 서로 평행하게 교대로 이격 배치되어 있고, 상기 복수의 제 1 절개선과 상기 복수의 제 2 절개선은 각 절개선의 단부가 상호 중첩되어 중첩부를 갖도록 지그재그 배열로 이격 배치되어 있고, 특정 관계식 1 및 2를 만족한다.
Bibliography:Application Number: WO2022IB62617