Electrode for a fuel cell, and a membrane-electrode assembly and fuel cell system comprising the same
First Claim
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1. An electrode for a fuel cell, comprising:
- an electrode substrate composed of nano-carbon fiber, the electrode substrate having a pore size ranging from 0.1 nm to 300 μ
m; and
a catalyst layer formed on the electrode substrate.
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Abstract
The present invention relates to an electrode for a fuel cell which includes an electrode substrate composed of nano-carbon fiber, with a catalyst layer formed on the electrode substrate. The electrode substrate has a better strength than an electrode substrate composed of a conventional carbonaceous material, and a pore size which can be controlled even though the composition for forming the catalyst layer may be coated in the form of a slurry.
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20 Claims
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1. An electrode for a fuel cell, comprising:
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an electrode substrate composed of nano-carbon fiber, the electrode substrate having a pore size ranging from 0.1 nm to 300 μ
m; anda catalyst layer formed on the electrode substrate. - View Dependent Claims (2, 3, 4, 5, 6, 20)
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7. A membrane-electrode assembly for a fuel cell, comprising
a polymer electrolyte membrane and an electrode positioned on each side of the polymer electrolyte membrane, each electrode comprising an electrode substrate comprising nano-carbon fiber with a catalyst layer thereon, the electrode substrate having a pore size ranging from 0.1 nm to 300 μ
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13. A fuel cell system comprising:
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an electricity generation unit comprising; a membrane-electrode assembly which includes a polymer electrolyte membrane and an electrode positioned on each side of the polymer electrolyte membrane, wherein at least one electrode comprises an electrode substrate comprising nano-carbon fiber with a catalyst layer thereon, the electrode substrate having a pore size ranging from 0.1 nm to 300 μ
m; anda separator arranged on each side of the membrane-electrode assembly; a fuel supply unit; and an oxidant supply unit. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification