US 11,658,293 B2
Sulfur-carbon composite, preparation method therefor, and lithium secondary battery comprising same
Eui Tae Kim, Daejeon (KR); Suenghoon Han, Daejeon (KR); Kwonnam Sohn, Daejeon (KR); and Doo Kyung Yang, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 16/646,490
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 16, 2018, PCT No. PCT/KR2018/014070
§ 371(c)(1), (2) Date Mar. 11, 2020,
PCT Pub. No. WO2019/098733, PCT Pub. Date May 23, 2019.
Claims priority of application No. 10-2017-0153249 (KR), filed on Nov. 16, 2017; application No. 10-2018-0022217 (KR), filed on Feb. 23, 2018; and application No. 10-2018-0140659 (KR), filed on Nov. 15, 2018.
Prior Publication US 2020/0274154 A1, Aug. 27, 2020
Int. Cl. H01M 4/38 (2006.01); H01M 4/36 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/38 (2013.01) [H01M 4/362 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 4/623 (2013.01); H01M 2004/028 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A sulfur-carbon composite comprising:
a porous carbon material; and
sulfur coated on at least a portion of an inside and a surface of the porous carbon material,
wherein a pore volume of the sulfur-carbon composite is 0.250 cm3/g to 0.400 cm3/g and a specific surface area of the sulfur-carbon composite is 18.5 m2/g to 30 m2/g.