SLURRY COMPOSITION FOR SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY ELECTRODE USING SAME

• Main Authors: KIM, Dong Ho, LEE, Joo Chul, KIM, Seong Do, YANG, Hwi Chan, KIM, Tae Yoon, LIM, Hyung Woo
• Format: Patent
• Language: English; French; Korean
• Published: 06.01.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to a slurry composition for a secondary battery electrode, and a secondary battery electrode manufactured using same, the slurry composition comprising a conductive material including a linear carbon material and a point-type carbon material, a dispersant, and an organic solvent. By adjusting the average size and the amount of the conductive material so as to have two peaks within a specific range, it is advantageous in that the solubility and dispersibility of the carbon-based conductive material are improved, and the electrical properties thereof are remarkably improved. La présente invention porte sur une composition de pâte pour électrode de batterie secondaire, et sur une électrode de batterie secondaire l'utilisant, la composition de pâte comprenant un matériau conducteur incluant un matériau de carbone linéaire et un matériau de carbone ponctuel, un dispersant, et un solvant organique. En réglant la taille moyenne et la quantité du matériau conducteur afin d'avoir deux crêtes dans une plage spécifique, l'invention présente l'avantage que la solubilité et la dispersibilité du matériau conducteur à base de carbone sont améliorées, et ses propriétés électriques sont remarquablement améliorées. 본 발명은 이차전지 전극용 슬러리 조성물 및 이를 이용하여 제조되는 이차전지 전극에 관한 것으로, 상기 슬러리 조성물은 선형 탄소재 및 점형 탄소재를 포함하는 도전재, 분산제 및 유기 용매를 포함하되, 특정 범위에서 2개의 피크를 가지도록 상기 도전재의 평균 크기와 함량을 조절함으로써 상기 탄소계 도전재의 용해성과 분산성이 향상되고, 전기적 물성이 현저히 개선되는 이점이 있다.