Electrode for fuel cell, fuel cell comprising the same, and method for preparing the same
First Claim
Patent Images
1. An electrode for a fuel cell comprising:
- an electrode substrate;
a microporous layer on the electrode substrate;
a nano-carbon layer on the microporous layer; and
a catalyst layer on the nano-carbon layer.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrode for a fuel cell of the present invention includes an electrode substrate, a microporous layer formed on the surface of the electrode substrate, and a nano-carbon layer formed on the surface of the microporous layer with a catalyst layer coated on the surface of the nano-carbon layer. Alternatively, an electrode for a fuel cell includes an electrode substrate in which carbon particles are dispersed, a nano-carbon layer on the electrode substrate, and a catalyst layer on the nano-carbon layer.
-
Citations
50 Claims
-
1. An electrode for a fuel cell comprising:
-
an electrode substrate;
a microporous layer on the electrode substrate;
a nano-carbon layer on the microporous layer; and
a catalyst layer on the nano-carbon layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An electrode for a fuel cell comprising:
-
an electrode substrate having carbon particles dispersed therein;
a nano-carbon layer on the electrode substrate; and
a catalyst layer on the nano-carbon layer. - View Dependent Claims (19, 20)
-
-
21. A membrane-electrode assembly for a fuel cell, comprising a polymer electrolyte membrane;
- and at least two electrodes respectively positioned on both sides of the polymer electrolyte membrane, wherein each electrode comprises;
an electrode substrate, a microporous layer on the electrode substrate;
a nano-carbon layer on the microporous layer; and
a catalyst layer on the nano-carbon layer. - View Dependent Claims (22, 23)
- and at least two electrodes respectively positioned on both sides of the polymer electrolyte membrane, wherein each electrode comprises;
-
24. A membrane-electrode assembly for a fuel cell, comprising a polymer electrolyte membrane and at least two electrode substrates, wherein the polymer electrolyte membrane has first and second side surfaces and further comprises;
-
nano-carbon layers on the first and second side surfaces of the polymer electrolyte membrane; and
catalyst layers on the nano-carbon layers. - View Dependent Claims (25, 26, 27)
-
-
28. A fuel cell system comprising an electricity generating unit, a fuel supplying unit for supplying a fuel including hydrogen to the electricity generating unit;
- and an oxidant supplying unit for supplying an oxidant to the electricity generating unit, wherein the electricity generating unit comprises a plurality of membrane electrode assemblies and separators, and each membrane electrode assembly comprises a polymer electrolyte membrane between at least two electrodes, wherein at least one of the at least two electrodes comprises;
an electrode substrate;
a microporous layer on the electrode substrate;
a nano-carbon layer on the microporous layer; and
a catalyst layer on the nano-carbon layer. - View Dependent Claims (29)
- and an oxidant supplying unit for supplying an oxidant to the electricity generating unit, wherein the electricity generating unit comprises a plurality of membrane electrode assemblies and separators, and each membrane electrode assembly comprises a polymer electrolyte membrane between at least two electrodes, wherein at least one of the at least two electrodes comprises;
-
30. A fuel cell system comprising an electricity generating unit, a fuel supplying unit for supplying a fuel including hydrogen to the electricity generating unit;
- and an oxidant supplying unit for supplying an oxidant to the electricity generating unit, wherein the electricity generating unit comprises a plurality of membrane electrode assemblies and separators, and each membrane electrode assembly comprises a polymer electrolyte membrane between at least two electrodes, wherein the polymer electrolyte membrane includes first and second surfaces and further comprises;
a microporous layer on at least one of the first and second surfaces;
a nano-carbon layer on the microporous layer; and
a catalyst layer on the nano-carbon layer.
- and an oxidant supplying unit for supplying an oxidant to the electricity generating unit, wherein the electricity generating unit comprises a plurality of membrane electrode assemblies and separators, and each membrane electrode assembly comprises a polymer electrolyte membrane between at least two electrodes, wherein the polymer electrolyte membrane includes first and second surfaces and further comprises;
-
31. A method of preparing an electrode for a fuel cell, the method comprising:
-
providing an electrode substrate;
forming a microporous layer on the electrode substrate;
providing a first catalyst for synthesizing nano-carbon on the microporous layer;
heating the first catalyst locally while exposing the first catalyst to a reactive gas including carbon to grow a nano-carbon layer on the microporous layer; and
coating a second catalyst on the nano-carbon layer. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
-
-
50. A method of preparing a polymer electrode membrane for a fuel cell comprising:
-
providing a polymer electrode membrane substrate;
providing a first catalyst for synthesizing nano-carbon on the polymer electrode membrane substrate;
heating the first catalyst locally while exposing the first catalyst to a reactive gas including carbon to grow a nano-carbon layer on the microporous layer; and
coating a second catalyst on the nano-carbon layer.
-
Specification