US 11,688,871 B2
Electrode for membrane-electrode assembly, method of manufacturing same and membrane-electrode assembly using same
Byeong Gab Ji, Gyeonggi-do (KR); Su Won Seol, Gyeonggi-do (KR); Dong Hwan Yoon, Gyeonggi-do (KR); Kook Il Han, Gyeonggi-do (KR); and Yoon Hwan Cho, Seoul (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed on Nov. 23, 2020, as Appl. No. 17/101,576.
Claims priority of application No. 10-2020-0040866 (KR), filed on Apr. 3, 2020.
Prior Publication US 2021/0313609 A1, Oct. 7, 2021
Int. Cl. H01M 8/1004 (2016.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01)
CPC H01M 8/1004 (2013.01) [H01M 4/8828 (2013.01); H01M 4/8882 (2013.01); H01M 4/8892 (2013.01); H01M 4/9008 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of manufacturing an electrode for a membrane-electrode assembly, comprising:
preparing a catalyst composite material comprising a catalyst, a blowing agent and a first ionomer;
preparing a catalyst slurry comprising the catalyst composite material, a second ionomer, and a solvent; and
applying the catalyst slurry on a substrate,
wherein the catalyst composite material comprises the catalyst and a coating layer formed on all or part of a surface of the catalyst, and
the coating layer comprises the first ionomer and the blowing agent.