	US 12,482,815 B2
	Method of manufacturing negative electrode having inorganic coating layer formed thereon
Byoung Hyo Jung, Daejeon (KR); Jung Hun Choi, Daejeon (KR); Min Chul Jang, Daejeon (KR); Yo Han Kwon, Daejeon (KR); Yeon Suk Hong, Daejeon (KR); and Suk Il Youn, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/914,794
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Oct. 6, 2021, PCT No. PCT/KR2021/013711 § 371(c)(1), (2) Date Sep. 27, 2022, PCT Pub. No. WO2022/085995, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 10-2020-0134992 (KR), filed on Oct. 19, 2020.
Prior Publication US 2023/0135232 A1, May 4, 2023
Int. Cl. H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01); H01M 4/02 (2006.01)

CPC H01M 4/366 (2013.01) [H01M 4/0404 (2013.01); H01M 4/382 (2013.01); H01M 4/386 (2013.01); H01M 4/48 (2013.01); H01M 2004/027 (2013.01)]

10 Claims

1. A method of manufacturing a negative electrode, the method comprising:

coating a negative electrode slurry comprising a negative electrode active material on at least one surface of a current collector, to form a negative electrode having a negative electrode active material layer formed thereon;

pre-lithiating the negative electrode; and

aging the pre-lithiated negative electrode under an CO₂atmosphere to form an inorganic coating layer on a surface of the negative electrode active material layer.