Positive active material manufacturing method and lithium secondary battery comprising thereof

• Main Authors: LEE JIN WOO, KIM TAEK GYOUNG, KIM SEONG BEEN, LEE DONG WOOK, SOHN KWON NAM
• Format: Patent
• Language: English; Korean
• Published: 22.07.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; ELECTRICITY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR RELEVANT APPARATUS; TRANSPORTING

The present invention relates to a positive electrode active material for a lithium secondary battery, a manufacturing method thereof, a positive electrode for a lithium secondary battery including the same, and a lithium secondary battery, wherein the positive electrode active material for a lithium secondary battery includes a sulfur-carbon composite including a porous carbon material supported with Pt_3M catalyst particles, and M is a transition metal. 본 발명은 Pt3M 촉매 입자가 담지된 다공성 탄소재를 포함하는 황-탄소 복합체를 포함하며, 상기 M은 전이금속인, 리튬 이차 전지용 양극 활물질, 이의 제조방법, 이를 포함하는 리튬 이차 전지용 양극 및 리튬 이차 전지에 관한 것이다.