H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/86 (2006.01) B05D 5/12 (2006.01) H01M 4/88 (2006.01) H01M 4/90 (2006.01) H01M 4/96 (2006.01)
Patent
CA 2488908
A method of making a membrane electrode assembly is provided. The method includes providing a non-porous substrate (72) which has sufficient structural integrity to be reusable or which is formed into a loop. A slurry is formed which includes an ionically conductive material (64), an electrically conductive material (60), a catalyst (62), and a solvent. The slurry is applied onto the non-porous substrate, for example, in a pattern of discrete areas. The slurry is dried to form decals. The decals are bonded to a membrane and then the substrate is peeled from the decal in a substantially undamaged condition so that it may be reused.
L'invention concerne un procédé de fabrication d'un ensemble électrode-membrane (12). Ce procédé consiste à apporter un substrat non poreux (12) dont l'intégrité structurelle est suffisante pour être réutilisée ou qui forme une boucle. On obtient une suspension aqueuse renfermant une matière ioniquement conductrice (64), une matière électro-conductrice (60), un catalyseur (62) et un solvant. On applique la suspension aqueuse sur le substrat non poreux, notamment dans un motif de zones distinctes. On sèche la suspension aqueuse pour former des décalcomanies qui seront liées à une membrane à partir de laquelle on décolle le substrat de manière sensiblement intacte, de telle sorte que l'on puisse la réutiliser.
General Motors Corporation
Gm Global Technology Operations Inc.
Gowling Lafleur Henderson Llp
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