Method of manufacturing highly durable electrolyte membrane for fuel cells
AssigneesHyundai Motor Company, Kia Corporation
InventorsSe Wook Jang, Kweon Ju Park
Life of this patent
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Abstract
An embodiment method of manufacturing an electrolyte membrane for fuel cells includes preparing a three-layer structure including a first ionomer layer on a first surface of a porous support and a second ionomer layer on a second surface of the porous support opposite the first surface, pressurizing an inert gas into the three-layer structure to produce a microporous membrane, impregnating the microporous membrane with an additional ionomer solution, and drying the microporous membrane.
Claims16
A method of manufacturing an electrolyte membrane for fuel cells, the method comprising:
- preparing a three-layer structure comprising a porous support, a first ionomer layer on a first surface of the porous support and a second ionomer layer on a second surface of the porous support opposite the first surface;
- pressurizing an inert gas into the three-layer structure to produce a microporous membrane;
- impregnating the microporous membrane with an additional ionomer solution;
- and
- drying the microporous membrane.
A method of manufacturing an electrolyte membrane for fuel cells, the method comprising:
- preparing a three-layer structure comprising a porous support, a first ionomer layer on a first surface of the porous support, and a second ionomer layer on a second surface of the porous support opposite the first surface;
- producing a microporous membrane by pressurizing an inert gas into the three-layer structure, wherein producing the microporous membrane comprises applying a pressure of 50 to 200 kPa to the three-layer structure in a vertical direction of the three-layer structure for 1 to 10 minutes at a temperature of 10 to 40° C.;
- impregnating the microporous membrane with an additional ionomer solution;
- and
- drying the microporous membrane at a temperature of 80 to 180° C. for 5 to 30 minutes.
Dependencies are inferred from the claim text.