	US 12,266,764 B2
	Method of manufacturing composite anode for lithium ion battery
Jong Chan Song, Gyeonggi-do (KR); Won Keun Kim, Seoul (KR); Jae Wook Shin, Seoul (KR); Sung Hee Shin, Incheon (KR); Kyoung Han Ryu, Gyeonggi-do (KR); Seong Min Ha, Seoul (KR); Seok Ju Kang, Ulsan (KR); and Kyung Eun Baek, Ulsan (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Ulsan National Institute of Science and Technology, Ulsan (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Ulsan National Institute of Science and Technology, Ulsan (KR)
Filed on Sep. 21, 2021, as Appl. No. 17/480,241.
Claims priority of application No. 10-2021-0031741 (KR), filed on Mar. 11, 2021.
Prior Publication US 2022/0294004 A1, Sep. 15, 2022
Int. Cl. H01M 10/05 (2010.01); H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01)

CPC H01M 10/058 (2013.01) [H01M 4/0416 (2013.01); H01M 4/0471 (2013.01); H01M 4/133 (2013.01); H01M 4/1393 (2013.01); H01M 10/0525 (2013.01)]

7 Claims

1. A method of manufacturing a composite anode for a lithium ion battery, comprising:

first heat treating a carbon-supplying layer so that a surface of the carbon-supplying layer is modified to obtain a carbon-modified layer;

adding a metal catalyst precursor solution to the carbon-modified layer;

second heating the carbon-modified layer to which the metal catalyst precursor solution is added, to obtain a carbon-metal catalyst composite layer; and

impregnating lithium metal on one surface of the carbon-metal catalyst composite layer to form an impregnation layer having a predetermined thickness.