CATHODE COMPLEX COMPRISING POROUS CARBON SUBSTRATE AND ALL SOLID LITHIUM-SULFUR BATTERY COMPRISING THE SAME

• Main Authors: KIM HO SUNG, HEO KOOK JIN, KIM MIN YOUNG, IM JEHONG, LEE JEONG KWAN, LIM JINSUB
• Format: Patent
• Language: English; Korean
• Published: 24.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention provides an all-solid lithium-sulfur battery positive electrode composite including: a positive electrode current collector including a porous carbon substrate; and a positive electrode including a positive electrode material formed on the positive electrode current collector, wherein the positive electrode material includes a positive electrode active material containing sulfur elements, a solid electrolyte, a conductive material, and a binder. The positive electrode composite including the porous carbon substrate and the all-solid lithium-sulfur battery including the same of the present invention can improve output characteristics and cycle characteristics by including the porous carbon substrate. 본 발명은 다공성 탄소기재를 포함하는 양극 집전체; 및 상기 양극 집전체 상에 형성된 양극소재를 포함하는 양극;을 포함하고, 상기 양극소재는 황 원소를 포함하는 양극 활물질, 고체전해질, 도전재 및 바인더를 포함하는 것인 전고체 리튬-황 전지용 양극 복합체가 제공된다. 본 발명의 다공성 탄소기재를 포함하는 양극 복합체 및 그를 포함하는 전고체 리튬-황 전지는 다공성 탄소기재를 포함함으로써 출력특성 및 싸이클 특성이 향상되는 효과가 있다.