US 12,107,269 B2
Sulfur-carbon composite, method for producing same, and positive electrode for lithium-sulfur battery and lithium-sulfur battery which comprise same
Soohyun Kim, Daejeon (KR); and Kwonnam Sohn, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/052,307
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jun. 4, 2019, PCT No. PCT/KR2019/006705
§ 371(c)(1), (2) Date Nov. 2, 2020,
PCT Pub. No. WO2020/009333, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 10-2018-0076514 (KR), filed on Jul. 2, 2018.
Prior Publication US 2021/0242463 A1, Aug. 5, 2021
Int. Cl. H01M 4/583 (2010.01); H01M 4/04 (2006.01); H01M 4/136 (2010.01); H01M 4/137 (2010.01); H01M 4/1393 (2010.01); H01M 4/1399 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/36 (2010.01); H01M 50/417 (2021.01); H01M 4/02 (2006.01); H01M 4/1397 (2010.01)
CPC H01M 4/583 (2013.01) [H01M 4/0404 (2013.01); H01M 4/0433 (2013.01); H01M 4/0471 (2013.01); H01M 4/136 (2013.01); H01M 4/366 (2013.01); H01M 4/622 (2013.01); H01M 4/661 (2013.01); H01M 10/36 (2013.01); H01M 50/417 (2021.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 4/137 (2013.01); H01M 4/1393 (2013.01); H01M 4/1397 (2013.01); H01M 4/1399 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A sulfur-carbon composite comprising:
a porous carbon material;
a coating layer on a surface of the porous carbon material, said coating layer comprising a compound with electrolyte solution impregnation property; and
sulfur,
wherein the surface of the porous carbon material comprises the coating layer;
wherein the sulfur-carbon composite is prepared by mixing the porous carbon material having the coating layer with sulfur, and
wherein the compound with electrolyte solution impregnation property is present in an amount of 0.5% by weight to 5% by weight based on a total weight of the sulfur-carbon composite.