Current collector supported fuel cell
View Patent ↗Subject matter describes a current collector for a fuel cell stack, wherein the current collector physically supports the fuel cell stack within a fuel cell and an electrode element of the fuel cell stack is attached as a deposited layer to the current collector. The current collector has openings to allow gases of the fuel cell to flow to and from the electrode element.
1. A method, comprising:
obtaining a first current collector layer suitable for physically supporting parts of a fuel cell stack, wherein the fuel cell stack includes at least two electrodes and an electrolyte layer;
depositing a first electrode on the first current collector layer;
depositing the electrolyte layer of the fuel cell stack on the first electrode layer;
depositing a second electrode layer of the fuel cell stack on the electrolyte layer;
depositing a second current collector layer of the fuel cell stack on the second electrode layer; and
mounting the fuel cell stack within an enclosure defining a chamber of a fuel cell, wherein a connection between an inside surface of the enclosure and the first current collector layer physically supports the fuel cell stack within the chamber, and wherein the first current collector layer is cantilevered within the chamber of the fuel cell to support the fuel cell stack.
2. The method as recited in claim 1 , wherein the the second current collector is not cantilevered within the chamber of the fuel cell to support the fuel cell stack.
3. The method as recited in claim 1 , wherein the first and second current collector layers are made of different materials, differently etched and only the first current collector layer is used to support the fuel cell stack in a fuel cell.
4. The method as recited in claim 1 , wherein the first current collector layer has a thickness of approximately between ten and twenty times a thickness of one of the electrodes or the electrolyte.
5. The method as recited in claim 1 , wherein the first current collector layer has a thickness of approximately between ten and one thousand microns.
6. The method as recited in claim 1 , wherein the first and second electrode layers or the electrolyte layer have a thickness of approximately five microns.
7. The method as recited in claim 1 , wherein the first and second electrode layers or the electrolyte layer has a thickness less than five microns.