US 11,967,702 B2
Sulfur-carbon composite, and cathode and lithium secondary battery each comprising same
Bong Soo Kim, Daejeon (KR); and Seungbo Yang, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/298,878
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed May 13, 2020, PCT No. PCT/KR2020/006256
§ 371(c)(1), (2) Date Jun. 1, 2021,
PCT Pub. No. WO2020/231162, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 10-2019-0056010 (KR), filed on May 14, 2019; and application No. 10-2020-0056606 (KR), filed on May 12, 2020.
Prior Publication US 2022/0059817 A1, Feb. 24, 2022
Int. Cl. H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/133 (2010.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/362 (2013.01) [H01M 4/133 (2013.01); H01M 4/38 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A sulfur-carbon composite, comprising:
carbon, said carbon comprising sheet-type carbon, wherein the sheet-type carbon is present in an amount of more than 0 wt. % and less than 50 wt. % based on a total weight of the carbon; and
sulfur,
wherein the carbon further comprises dot-type carbon and linear carbon; and
wherein a specific surface area of the sheet-type carbon is larger than a sum of a specific surface area of the dot-type carbon and a specific surface area of the linear carbon.