	US 12,221,348 B2
	Thermally expanded reduced graphene oxide, manufacturing method therefor, sulfur-carbon composite comprising same, and lithium secondary battery
Seungbo Yang, Daejeon (KR); Kwonnam Sohn, Daejeon (KR); Suenghoon Han, Daejeon (KR); and Jangsoo Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/281,455
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 8, 2019, PCT No. PCT/KR2019/015142 § 371(c)(1), (2) Date Mar. 30, 2021, PCT Pub. No. WO2020/101276, PCT Pub. Date May 22, 2020.
Claims priority of application No. 10-2018-0139662 (KR), filed on Nov. 14, 2018; and application No. 10-2019-0141399 (KR), filed on Nov. 7, 2019.
Prior Publication US 2022/0002158 A1, Jan. 6, 2022
Int. Cl. C01B 32/198 (2017.01); C01B 32/194 (2017.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/583 (2010.01); H01M 10/052 (2010.01)

CPC C01B 32/198 (2017.08) [C01B 32/194 (2017.08); H01M 4/364 (2013.01); H01M 4/38 (2013.01); H01M 4/583 (2013.01); H01M 10/052 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01)]

14 Claims

1. A holey thermally expanded-reduced graphene oxide,

wherein the holey thermally expanded-reduced graphene oxide comprises pores on a surface thereof,

wherein the pores on the surface have an average size of 0.5 nm to 4 nm,

wherein the holey thermally expanded-reduced graphene oxide further comprises pores on an inside thereof,

wherein the holey thermally expanded-reduced graphene oxide has a specific surface area of 1000 m²/g to 2500 m²/g, and

wherein the holey thermally expanded-reduced graphene oxide has a pore volume of 7 cm³/g to 12 cm³/g.