Electrolyte membrane and membrane electrode assembly using...

H - Electricity – 01 – M

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H01M 8/02 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2689513

An electrolyte membrane (11) includes: a filler (20); and a polymer electrolyte (22). A thickness of the electrolyte membrane (11) is 1 micrometer to 500 micrometer, a moisture content thereof is 10 mass% or more, and a ratio of a swelling ratio in a membrane surface direction (xy) thereof and a swelling ratio in a membrane thickness direction (z) thereof satisfies following Expression 1: where Lambda z is the swelling ratio in the membrane thickness direction (z), and Lambda xy is the swelling ratio in the membrane surface direction (xy).

L'invention concerne une membrane électrolyte (11) comprenant : une matière de charge (20) ; et un électrolyte polymérique (22). L'épaisseur de la membrane électrolyte (11) est de 1 micron à 500 microns, le taux d'humidité de celle-ci est supérieur ou égal à 10 % en masse et le rapport du taux de gonflement de celle-ci dans la direction (xy) de la surface de la membrane sur le taux de gonflement de celle-ci dans la direction (z) de l'épaisseur de la membrane satisfait à l'expression 1 suivante : où Lambda z est le taux de gonflement dans la direction (z) de l'épaisseur de la membrane et Lambda xy est le taux de gonflement dans la direction (xy) de la surface de la membrane.

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