MANUFACTURING METHOD AND DEVICE FOR ELECTRODE OF SECONDARY BATTERY

• Main Authors: PARK SEUNG SEO, JANG JI WOONG
• Format: Patent
• Language: English; Korean
• Published: 03.07.2024
• 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

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. 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.