US 11,749,816 B2
Highly durable electrolyte membrane having improved ion conductivity and production method therefor
In Yu Park, Seoul (KR); Byoung Su Kim, Gyeonggi-do (KR); Dae Yong Son, Seoul (KR); and Jong Kil Oh, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Nov. 29, 2021, as Appl. No. 17/537,165.
Claims priority of application No. 10-2020-0188686 (KR), filed on Dec. 31, 2020.
Prior Publication US 2022/0209259 A1, Jun. 30, 2022
Int. Cl. H01M 8/0293 (2016.01); H01M 8/1004 (2016.01); C25B 9/23 (2021.01); C25B 1/04 (2021.01)
CPC H01M 8/0293 (2013.01) [C25B 9/23 (2021.01); H01M 8/1004 (2013.01); C25B 1/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrolyte membrane for a membrane-electrode assembly, comprising:
an ionomer having hydrogen ion conductivity; and
a complex dispersed in the ionomer,
wherein the complex comprises:
a support;
a primary antioxidant loaded on the support and having radical scavenging ability; and
a secondary antioxidant loaded on the support and having hydrogen peroxide decomposition activity.