An example fuel cell assembly may include a proton exchange membrane (or membrane electrode assembly) that has a first major surface and a second major surface. An anode electrode, which may include a patterned metal layer with a plurality of apertures extending through the patterned metal layer, ma
An example fuel cell assembly may include a proton exchange membrane (or membrane electrode assembly) that has a first major surface and a second major surface. An anode electrode, which may include a patterned metal layer with a plurality of apertures extending through the patterned metal layer, may also be provided. An anode gas diffusion layer secured to an anode adhesive frame may be situated between the anode electrode and the first major surface of the proton exchange membrane. A cathode electrode may, in some instances, include a patterned metal layer with a plurality of apertures extending through the patterned metal layer. A cathode gas diffusion layer secured to a cathode adhesive frame may be situated between the cathode electrode and the second major surface of the proton exchange membrane. In some instances a fuel cell assembly may be flexible so that the fuel cell assembly can be rolled into a rolled configuration that defines an inner cavity with open ends. A fuel pellet may be inserted into the inner cavity, and one or more end caps may be provided to cover and seal the open ends.
대표청구항▼
1. A fuel cell assembly, comprising: a proton exchange membrane having a first major surface and a second major surface;an anode electrode, the anode electrode including a patterned metal layer with a plurality of apertures extending through the patterned metal layer;an anode adhesive frame includin
1. A fuel cell assembly, comprising: a proton exchange membrane having a first major surface and a second major surface;an anode electrode, the anode electrode including a patterned metal layer with a plurality of apertures extending through the patterned metal layer;an anode adhesive frame including at least two vacant regions;an anode gas diffusion layer disposed within each anode adhesive frame vacant region, wherein: each anode gas diffusion layer with the anode adhesive frame is situated between the anode electrode and the first major surface of the proton exchange membrane;the anode adhesive frame forms a gas seal around each anode gas diffusion layer and between the anode electrode and the first major surface of the proton exchange membrane; andeach anode gas diffusion layer and the anode adhesive frame lie substantially in a common plane;a cathode electrode, the cathode electrode including a patterned metal layer with a plurality of apertures extending through the patterned metal layer; anda cathode adhesive frame including at least two vacant regions; anda cathode gas diffusion layer disposed within each cathode adhesive frame vacant region, wherein: each cathode gas diffusion layer with the cathode adhesive frame is situated between the cathode electrode and the second major surface of the proton exchange membrane;the cathode adhesive frame forms a gas seal around each anode gas diffusion layer and between the cathode electrode and the second major surface of the proton exchange membrane;each cathode gas diffusion layer and the cathode adhesive frame lie substantially in a common plane; andthe cathode adhesive frame adheres to the anode adhesive frame to form a gas seal disposed about each anode gas diffusion layer, the proton exchange membrane, and the cathode gas diffusion layer. 2. The fuel cell assembly of claim 1, wherein: the fuel cell assembly is arranged in a rolled configuration to define an inner cavity; anda fuel pellet disposed in the cavity. 3. The fuel cell assembly of claim 2, wherein the fuel cell assembly includes opposing edges, wherein when the fuel cell assembly is arranged in the rolled configuration, the two opposing edges of the fuel cell assembly are secured together to define the inner cavity. 4. The fuel cell assembly of claim 3, further comprising end caps for covering each of the two open ends of the fuel cell assembly when the fuel cell assembly is arranged in the rolled configuration. 5. The fuel cell assembly of claim 1, wherein the anode electrode includes a substrate, a dielectric layer on the substrate, and a patterned metal layer on the dielectric layer, wherein the plurality of apertures of the anode electrode extend through the patterned metal layer, the dielectric layer and the substrate. 6. The fuel cell assembly of claim 5, wherein the substrate is a metal foil. 7. The fuel cell assembly of claim 5, wherein the substrate extends beyond the pattern metal layer in at least one region of the anode electrode. 8. The fuel cell assembly of claim 5, wherein the cathode electrode includes a substrate, a dielectric layer on the substrate, and a patterned metal layer on the dielectric layer, wherein the plurality of apertures of the cathode electrode extend through the patterned metal layer, the dielectric layer and the substrate. 9. A fuel cell assembly, comprising: a proton exchange membrane having a first major surface and a second major surface;an anode electrode, the anode electrode including a patterned metal layer with a plurality of apertures extending through the patterned metal layer;an anode adhesive frame including at least two vacant regions;an anode gas diffusion layer disposed within each anode adhesive frame vacant region, wherein; each anode gas diffusion layer with the anode adhesive frame is situated between the anode electrode and the first major surface of the proton exchange membrane; andthe anode adhesive frame forms a gas seal around each anode gas diffusion layer and between the anode electrode and the first major surface of the proton exchange membrane;a cathode electrode, the cathode electrode including a patterned metal layer with a plurality of apertures extending through the patterned metal layer; anda cathode adhesive frame including at least two vacant regions; anda cathode gas diffusion layer, wherein the cathode gas diffusion layer with the cathode adhesive frame is situated between the cathode electrode and the second major surface of the proton exchange membrane;a cathode gas diffusion layer disposed within each cathode adhesive frame vacant region, wherein: each cathode gas diffusion layer and the cathode adhesive frame are situated between the cathode electrode and the second major surface of the proton exchange membrane;the cathode adhesive frame forms a gas seal around each anode gas diffusion layer and between the cathode electrode and the second major surface of the proton exchange membrane; andthe cathode adhesive frame adheres to the anode adhesive frame to form a gas seal disposed about each anode gas diffusion layer, the proton exchange membrane, and the cathode gas diffusion layer;wherein, the fuel cell assembly is arranged in a rolled configuration to define an inner cavity with open ends; andone or more end caps for covering the open ends. 10. The fuel cell assembly of claim 9 further comprising a fuel pellet disposed in the inner cavity. 11. The fuel cell assembly of claim 9, wherein when the fuel cell assembly is arranged in the rolled configuration, two opposing edges of the fuel cell assembly are secured together to define the inner cavity. 12. The fuel cell assembly of claim 11, wherein the two opposing edges of the fuel cell assembly are secured together by a weld bond. 13. The fuel cell assembly of claim 11, wherein the two opposing edges of the fuel cell assembly are secured together by an adhesive bond.
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