	US 12,218,359 B2
	Conductive material dispersion, and electrode and lithium secondary battery manufactured using the same
Dong Hyun Kim, Daejeon (KR); Houng Sik Yoo, Daejeon (KR); Seong Kyun Kang, Daejeon (KR); Gye Min Kwon, Daejeon (KR); and Hyeon Choi, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Filed by LG Energy Solution, Ltd., Seoul (KR)
Filed on Oct. 9, 2023, as Appl. No. 18/377,994.
Application 18/377,994 is a continuation of application No. 17/604,084, granted, now 11,824,200, previously published as PCT/KR2020/006238, filed on May 12, 2020.
Claims priority of application No. 10-2019-0057722 (KR), filed on May 17, 2019.
Prior Publication US 2024/0047687 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01B 1/24 (2006.01); C01B 32/174 (2017.01); C09C 1/56 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)

CPC H01M 4/625 (2013.01) [C01B 32/174 (2017.08); C09C 1/56 (2013.01); H01B 1/24 (2013.01); H01M 10/0525 (2013.01); C01B 2202/22 (2013.01); C01B 2202/32 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)]

17 Claims

1. A conductive material dispersion comprising:

a carbon-based conductive material;

a dispersant; and

a dispersion medium,

wherein the dispersant includes a main dispersant and an auxiliary dispersant, wherein:

the main dispersant is a nitrile-based copolymer having a α,β-unsaturated nitrile-derived unit and a conjugated diene-derived unit, and the conjugated diene-derived unit is partially or fully hydrogenated; and

the auxiliary dispersant is a copolymer including an oxyalkylene unit and at least one of a styrene unit and an alkylene unit.