H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/10 (2006.01)
Patent
CA 2400146
The invention concerns a method for preparing an assembly comprising at least an electrode having an active surface, and a heat-stable polymer membrane, comprising the following steps which consist in: a) pouring on a support a heat-stable polymer so as to obtain a heat-stable polymer solution film; then b) partly drying said heat-stable polymer solution film by evaporating the solvent from said solution; c) depositing an electrode on the surface of said heat-stable polymer solution film, during the drying process, before it is completely dry, the active surface of the electrode facing said surface, so as to obtain an assembly comprising a heat-stable polymer membrane and said electrode; d) completely drying said assembly resulting from step c); then e) separating the assembly comprising said membrane and said electrode from the substrate. The invention also concerns electrode-membrane and electrode-membrane-electrode (EME) assemblies obtained by said method and a fuel cell comprising said assemblies.
Procédé de préparation d'un assemblage comprenant au moins une électrode présentant une face active, et une membrane en un polymère thermostable, dans lequel on effectue les étapes suivantes: a) on coule sur un support une solution d'un polymère thermostable de façon à obtenir un film de solution de polymère thermostable; puis b) on sèche partiellement ledit film de solution de polymère thermostable par évaporation du solvant de ladite solution; c) on dépose une électrode sur la surface dudit film de solution de polymère thermostable, en cours de séchage, avant qu'il ne soit totalement sec, la face active de l'électrode faisant face à ladite surface, de façon à obtenir un assemblage comprenant une membrane en polymère thermostable et ladite électrode; d) on sèche complètement ledit assemblage obtenu lors de l'étape c); puis e) on décolle l'assemblage comprenant ladite membrane et ladite électrode du substrat. Assemblages électrode - membrane et électrode - membrane - électrode (EME) obtenus par le procédé et pile à combustible comprenant ces assemblages.
Jousse Franck
Marsacq Didier
Mercier Regis
Pineri Michel
Commissariat A. L'energie Atomique
Goudreau Gage Dubuc
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