METHOD AND DEVICE FOR MANUFACTURING SECONDARY BATTERY ELECTRODE

• Main Authors: PARK, Seung-Seo, JANG, Ji-Woong
• Format: Patent
• Language: English; French; Korean
• Published: 04.07.2024
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; ELECTRICITY; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

Provided are: a method for manufacturing a secondary battery electrode having reduced thickness unevenness such as that resulting from sliding or side ringing; a method for manufacturing a secondary battery electrode that enables sliding deviation between a top surface and a back surface of a current collector to be minimized when a slurry is sequentially applied to the top surface and the back surface; and a device suitable for performing the method for manufacturing a secondary battery electrode. The method for manufacturing a secondary battery electrode, according to the present invention, comprises a step of forming an artificial step on a current collector and applying an electrode active material on the step. L'invention concerne : un procédé de fabrication d'une électrode de batterie secondaire ayant une irrégularité d'épaisseur réduite telle que celle résultant d'un glissement ou d'une oscillation latérale ; un procédé de fabrication d'une électrode de batterie secondaire qui permet de réduire au minimum un écart de glissement entre une surface supérieure et une surface arrière d'un collecteur de courant lorsqu'une suspension est appliquée séquentiellement sur la surface supérieure et la surface arrière ; et un dispositif approprié pour réaliser le procédé de fabrication d'une électrode de batterie secondaire. Le procédé de fabrication d'une électrode de batterie secondaire, selon la présente invention, comprend une étape consistant à former une marche artificielle sur un collecteur de courant et à appliquer un matériau actif d'électrode sur la marche. 슬라이딩이나 사이드 링과 같은 두께 불균일 현상이 개선된 이차전지용 전극 제조 방법, 집전체의 탑면과 백면에 순차적으로 슬러리를 코팅할 때에 탑면과 백면의 슬라이딩 편차를 최소화할 수 있는 이차전지용 전극 제조 방법, 그리고 이러한 이차전지용 전극 제조 방법을 수행하기 적합한 장치를 제공한다. 본 발명에 따른 이차전지용 전극 제조 방법은, 집전체에 인위적인 단차를 만들고 전극 활물질층을 상기 단차 위에 코팅하는 단계를 포함한다.