H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/16 (2006.01) H01M 4/88 (2006.01) H01M 4/90 (2006.01)
Patent
CA 2494747
The present invention relates to a process for the treatment of at least one of the electrodes (cathode and/or anode) of a fuel cell, before the said cell is operated, and before or after the said electrode is placed in the said cell, comprising the step consisting in forming a biofilm on at least part of the surface of the said electrode, by immersing the said electrode in a medium capable of causing the growth of biofilms, the said biofilm being intended to catalyse the reaction at the electrode, and the step consisting simultaneously in subjecting the said electrode to a polarization potential.The invention also relates to a fuel cell comprising at least one electrode covered with a biofilm, obtained before the said electrode is placed in the cell, and to the electrode.
L'invention porte sur un procédé de traitement d'au moins l'une des électrodes (cathode et/ou anode) d'une pile à combustible avant la mise en service de la pile et avant ou après son montage dans la pile, comportant (i) une étape de formation sur au moins une partie de la surface de l'électrode, par immersion de l'électrode dans milieu provoquant la croissance des biofilms, d'un biofilm ayant pour rôle de catalyser la réaction au niveau de l'électrode, et (ii) une étape simultanée de soumission de l'électrode à un potentiel de polarisation. L'invention porte également: sur une pile à combustible comportant au moins une électrode recouverte d'un biofilm formé avant sa mise en place la pile, et sur ladite électrode.
Bergel Alain
Feron Damien
LandOfFree
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