	US 12,080,876 B2
	Composite sulfide electrode and manufacturing method therefor
Jou Hyeon Ahn, Jinju-si (KR); Younki Lee, Jinju-si (KR); Gyu Bong Cho, Jinju-si (KR); Kwon-Koo Cho, Jinju-si (KR); and Hyo Jun Ahn, Jinju-si (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Appl. No. 17/421,003
Filed by SK INNOVATION CO., LTD., Seoul (KR)
PCT Filed Nov. 21, 2019, PCT No. PCT/KR2019/016015 § 371(c)(1), (2) Date Jul. 6, 2021, PCT Pub. No. WO2020/145504, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 10-2019-0001587 (KR), filed on Jan. 7, 2019.
Prior Publication US 2022/0102705 A1, Mar. 31, 2022
Int. Cl. H01M 4/1397 (2010.01); H01M 4/04 (2006.01); H01M 4/136 (2010.01); H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/75 (2006.01); H01M 4/80 (2006.01); D01D 5/00 (2006.01)

CPC H01M 4/1397 (2013.01) [H01M 4/049 (2013.01); H01M 4/136 (2013.01); H01M 4/362 (2013.01); H01M 4/5815 (2013.01); H01M 4/75 (2013.01); H01M 4/806 (2013.01); D01D 5/003 (2013.01)]

15 Claims

1. A manufacturing method for a composite sulfide electrode, the method comprising:

producing a mixed solution of polyacrylonitrile (PAN) and a metal oxide;

stirring the produced mixed solution;

electrospinning the stirred mixed solution to produce a wire type precursor including the metal oxide in PAN;

drying the produced wire type precursor;

mixing the dried wire type precursor and sulfur powder;

thermally treating a mixture of the wire type precursor and the sulfur powder to sulfurize the wire type precursor and then obtaining a sulfurized polyacrylonitrile (SPAN) incorporating metal sulfide; and

thermally decomposing the SPAN to obtain a metal sulfide-incorporated sulfurized carbon composite.