	US 12,080,888 B2
	Sulfur-carbon composite, method for producing same, and lithium secondary battery including same
Dongwook Lee, Daejeon (KR); Jinwoo Lee, Pohang-si (KR); Wongwang Lim, Pohang-si (KR); Kwonnam Sohn, Daejeon (KR); Doo Kyung Yang, Daejeon (KR); and Jia Lee, Pohang-si (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR); and POSTECH ACADEMY-INDUSTRY FOUNDATION, Pohang-si (KR)
Appl. No. 17/043,915
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR); and POSTECH ACADEMY-INDUSTRY FOUNDATION, Pohang-si (KR)
PCT Filed Sep. 2, 2019, PCT No. PCT/KR2019/011255 § 371(c)(1), (2) Date Sep. 30, 2020, PCT Pub. No. WO2020/055017, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 10-2018-0108788 (KR), filed on Sep. 12, 2018.
Prior Publication US 2021/0020940 A1, Jan. 21, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/583 (2010.01); C01B 17/00 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)

CPC H01M 4/583 (2013.01) [C01B 17/00 (2013.01); H01M 4/0471 (2013.01); H01M 4/364 (2013.01); H01M 4/38 (2013.01); H01M 4/62 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01)]

18 Claims

1. A sulfur-carbon composite comprising:

porous carbon;

diisopropenylbenzene; and

sulfur,

wherein the diisopropenylbenzene and sulfur are supported in pores of the porous carbon and on a surface of the porous carbon,

wherein the pores of the porous carbon contain first mesopores having a diameter of 2 nm to 8 nm and second mesopores having a diameter of 20 nm to 50 nm,

wherein the porous carbon comprises the first mesopores and the second mesopores in a pore volume ratio of 1:20 to 70,

wherein the diisopropenylbenzene and sulfur are covalently bonded, and

wherein the porous carbon is a spherical particle having a particle diameter of 2 μm to 10 μm.