CATHOD MATERIAL FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY INCLUDING THE SAME

• Main Authors: LEE JINWOO, YANG SEUNG BO, LIM WON GWANG, JEONG YO CHAN, PARK CHEOL YOUNG, SOHN KWON NAM
• Format: Patent
• Language: English; Korean
• Published: 17.10.2023
• 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 carbon composite for use in a positive electrode material of a lithium-sulfur battery and a method of manufacturing the same. The carbon composite comprises: a porous carbon material doped with at least one sulfur element; and at least one catalyst containing a transition metal. The catalyst is located on one or more of the outer surface and the inner surface of the pores of the porous carbon material doped with at least one sulfur element. An objective of the present invention is to provide a positive electrode material that has excellent adsorption capacity with lithium polysulfide and increases the kinetic activity of the oxidation/reduction reaction of sulfur. 본 발명은 리튬황 전지의 양극에 사용하기 위한 탄소 복합체 및 이의 제조방법에 관한 것으로서, 상기 탄소 복합체는 적어도 하나의 황 원소가 도핑된 다공성 탄소 소재, 및 전이금속을 함유하는 적어도 하나의 촉매를 포함하고, 상기 촉매는 상기 적어도 하나의 황 원소가 도핑된 다공성 탄소 소재의 외부 표면 및 기공 내부 표면 중 어느 하나 이상에 위치하는 것을 특징으로 한다.