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US 10,854,904 B2Granted
Polymer electrolyte membrane, a method for fabricating the same, and a membrane-electrode assembly including the same
AssigneeKolon Industries, Inc.
InventorsMoo Seok Lee, Yong Cheol Shin, Na Young Kim, Dong Hoon Lee
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Abstract
Disclosed are a polymer electrolyte membrane, a method for manufacturing the same and a membrane-electrode assembly comprising the same, the polymer electrolyte membrane includes a hydrocarbon-containing ion conductive layer; and a fluorine-containing ion conductor discontinuously dispersed on the hydrocarbon-containing ion conductive layer.
Claims15
A polymer electrolyte membrane comprising:
- a hydrocarbon-containing ion conductive layer;
- and
- fiber-shaped or spot-shaped fluorine-containing ion conductors which are dispersed on the hydrocarbon-containing ion conductive layer in such a way that the hydrocarbon-containing ion conductive layer is revealed between the fiber-shaped or spot-shaped fluorine-containing ion conductors, the fiber-shaped fluorine-containing ion conductors having an average diameter ranging from 0.005 μm to 5 μm and a ratio of an average length to the average diameter of 100% or greater, the spot-shaped fluorine-containing ion conductors having an average diameter ranging from 0.005 μm to 10 μm, wherein the fiber-shaped or spot-shaped fluorine-containing ion conductors are included in the polymer electrolyte membrane in an amount of 0.1 to 10 wt % based on the total weight of the polymer electrolyte membrane.
A method for producing a polymer electrolyte membrane, the method comprising:
- forming a hydrocarbon-containing ion conductive layer;
- and
- dispersing fiber-shaped or spot-shaped fluorine-containing ion conductors on the hydrocarbon-containing ion conductive layer in such a way that the hydrocarbon-containing ion conductive layer is revealed between the fiber-shaped or spot-shaped fluorine-containing ion conductors, the fiber-shaped fluorine-containing ion conductors having an average diameter ranging from 0.005 to 5 μm and a ratio of an average length to the average diameter of 100% or greater, the spot-shaped fluorine-containing ion conductors having an average diameter ranging from 0.005 to 10 μm,
- wherein the fiber-shaped or spot-shaped fluorine-containing ion conductors are included in the polymer electrolyte membrane in an amount of 0.1 to 10 wt % based on the total weight of the polymer electrolyte membrane.
1 more element
A membrane-electrode assembly comprising:
- an anode and a cathode facing each other;
- and
- a polymer electrolyte membrane disposed between the anode and the cathode,
- wherein the polymer electrolyte membrane comprises
- a hydrocarbon-containing ion conductive layer, and
- fiber-shaped or spot-shaped fluorine-containing ion conductors which are dispersed on the hydrocarbon-containing ion conductive layer in such a way that the hydrocarbon-containing ion conductive layer is revealed between the fiber-shaped or spot-shaped fluorine-containing ion conductors, the fiber-shaped fluorine-containing ion conductors having an average diameter ranging from 0.005 μm to 5 μm and a ratio of an average length to the average diameter of 100% or greater, the spot-shaped fluorine-containing ion conductors having an average diameter ranging from 0.005 μm to 10 μm,
- wherein the fiber-shaped or spot-shaped fluorine-containing ion conductors are included in the polymer electrolyte membrane in an amount of 0.1 to 10 wt % based on the total weight of the polymer electrolyte membrane.
4 more elements
Dependencies are inferred from the claim text.