EP 1055018 A1 20001129 - ASYMMETRIC ELECTRODES FOR DIRECT-FEED FUEL CELLS
Title (en)
ASYMMETRIC ELECTRODES FOR DIRECT-FEED FUEL CELLS
Title (de)
ASYMETRISCHE ELEKTRODEN FÜR DIREKTGESPEISTE BRENNSTOFFZELLEN
Title (fr)
ELECTRODES ASYMETRIQUES POUR PILES A COMBUSTIBLE A ALIMENTATION DIRECTE
Publication
Application
Priority
- US 9902677 W 19990208
- US 2164098 A 19980210
Abstract (en)
[origin: WO9940237A1] An improved direct-feed fuel cell having a solid membrane electrolyte (120) for electrochemical reactions of an organic fuel. Fuel crossover has been reduced due to pore structures blockage at the electrode-membrane interfaces (230, 270) of the membrane electrode assembly (160). Two improved MEA's are disclosed. One utilizes a multi-layer catalyst formation with a densest catalyst layer (220, 260) applied at the electrode-catalyst interfaces (230, 270). Another utilizes an inert pore blocking layer (320, 340) at the electrode-membrane interfaces (230, 270).
IPC 1-7
IPC 8 full level
C25B 9/10 (2006.01); C25B 9/23 (2021.01); H01M 4/86 (2006.01); H01M 8/10 (2006.01)
CPC (source: EP)
C25B 9/23 (2021.01); H01M 4/8605 (2013.01); H01M 8/1004 (2013.01); H01M 8/1009 (2013.01); Y02E 60/50 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9940237 A1 19990812; WO 9940237 A9 19991021; AU 2662699 A 19990823; EP 1055018 A1 20001129; EP 1055018 A4 20040811
DOCDB simple family (application)
US 9902677 W 19990208; AU 2662699 A 19990208; EP 99906802 A 19990208