US 12,424,646 B2
Electrochemical cell catalyst layers
Christina Johnston, Spanish Fort, AL (US); and Jake Christensen, Elk Grove, CA (US)
Assigned to Robert Bosch Gmbh, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Jun. 16, 2022, as Appl. No. 17/841,973.
Prior Publication US 2023/0411661 A1, Dec. 21, 2023
Int. Cl. H01M 8/1044 (2016.01); H01M 4/90 (2006.01); H01M 8/1004 (2016.01)
CPC H01M 8/1044 (2013.01) [H01M 4/9083 (2013.01); H01M 8/1004 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cathode catalyst layer comprising:
a support substrate having a pore-free surface region and a porous surface region having a plurality of pores;
a first electrolyte in direct contact with the pore-free surface region; and
a second electrolyte contained within the plurality of pores, the second electrolyte being different from the first electrolyte, the second electrolyte being an ionic liquid.