H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 8/02 (2006.01) H01M 8/10 (2006.01) H01M 8/04 (2006.01)
Patent
CA 2414365
A gas distribution member (3; 20) for a polymer membrane fuel cell comprising a highly porous, sintered material. The sintered material comprises fibers of an inorganic material. The fibers have a diameter in the range 0.5 - 50 µ, preferably 2 -25, most preferred 8 - 22 µ, and a length in the range up to 3 mm, and the porosity is in the range of more than 50 % by volume, preferably more than 90 percent by volume. Disclosed is also a fuel cell comprising said gas distribution member, and a method of making the same.
L'invention concerne un élément distributeur de gaz (3, 20) destiné à une pile à combustible à membrane de polymère comprenant une matière frittée, très poreuse. Cette matière frittée comporte des fibres en matière minérale. Les fibres possède un diamètre compris entre 0,5 - 50 $(m)m, de préférence plus de 90 % par volume. L'invention concerne également une pile à combustible renfermant cet élément distributeur de gaz, et un procédé de fabrication associé.
Backa Stefan
Ihonen Jari
Jaouen Frederic
Nygren Bertil
Rissanen Markku
Ab Volvo
Cassan Maclean
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