Fuel cell electrode and fuel cell system including a functionalized carbon support
Grant
US12580204B2
Kind: B2
Mar 17, 2026
Assignee
GM Global Technology Operations LLC
Inventors
Nagappan Ramaswamy, Venkata Raviteja Yarlagadda, Nathan Mellott, Swaminatha P. Kumaraguru
Abstract
An electrode for a fuel cell system is provided. The electrode includes a carbon support. The carbon support includes carbon particles each functionalized with one or more sulfur and oxygen-containing moieties. Platinum-based catalyst particles are disposed on the carbon support. Ionomer is disposed on the carbon support. A weight ratio of the ionomer to the carbon support is about 0.4 or less.
CPC Classifications
H01M 4/8668
H01M 4/881
H01M 4/8828
H01M 4/8857
H01M 4/8882
H01M 4/926
Filing Date
2023-03-23
Application No.
18188668
Claims
20