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A fuel cell assembly comprises a container, configured to be pressurized. A fuel cell is disposed in the container and a thermal shield substantially surrounds an inner periphery of the container to provide generally uniform thermal shielding around the fuel cell. The thermal shield is disposed betw

A fuel cell assembly comprises a container, configured to be pressurized. A fuel cell is disposed in the container and a thermal shield substantially surrounds an inner periphery of the container to provide generally uniform thermal shielding around the fuel cell. The thermal shield is disposed between the container and the fuel cell and is spaced from the container to form a flow path therebetween for a cooling fluid.

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1. A fuel cell assembly comprising:a container configured to be pressurized; a fuel cell disposed in the container; and a thermal shield disposed between the container and the fuel cell and spaced from the container to form a flow path therebetween for a cooling fluid. 2. The fuel cell assembly of c

1. A fuel cell assembly comprising:a container configured to be pressurized; a fuel cell disposed in the container; and a thermal shield disposed between the container and the fuel cell and spaced from the container to form a flow path therebetween for a cooling fluid. 2. The fuel cell assembly of claim 1, wherein the fuel cell is selected from the group consisting of solid oxide fuel cells, proton exchange membrane fuel cells, molten carbonate fuel cells, phosphoric acid fuel cells, alkaline fuel cells, direct methanol fuel cells, regenerative fuel cells, zinc air fuel cells, and protonic ceramic fuel cells.3. The fuel cell assembly of claim 1, wherein the fuel cell comprises at least one fuel cell having planar configuration.4. The fuel cell assembly of claim 1, wherein the fuel cell comprises at least one fuel cell having tubular configuration.5. The fuel cell assembly of claim 1, wherein the thermal shield is configured to define an insulating layer on an inner surface of the thermal shield.6. The fuel cell assembly of claim 5, wherein the thermal shield is configured to define another insulating layer on an inner surface of the container.7. The fuel cell assembly of claim 6, wherein the insulating layer comprises an insulating material selected from the group consisting of ceramic oxides, cellular ceramic foam materials, and a combination thereof.8. The fuel cell assembly of claim 1, wherein the thermal shield further comprises a second shield wall configured to define an inner surface of the container.9. The fuel cell assembly of claim 8, wherein the insulating layer is disposed between the second shield wall and the inner surface of the container.10. The fuel cell assembly of claim 1, wherein the thermal shield comprises a plurality of fluid conduits configured to flow the cooling fluid therethrough.11. The fuel cell assembly of claim 10, wherein the plurality of fluid conduits further comprises at least one fluid distribution manifold configured to distribute the cooling fluid therethrough.12. The fuel cell assembly of claim 11, wherein the cooling fluid comprises an oxidant.13. The fuel cell assembly of claim 1, wherein the thermal shield comprises a cylindrical shield assembly.14. The fuel cell assembly of claim 13, wherein the cylindrical shield assembly further comprisies a base and a seal configured to separate the cooling fluid from the oxidant; the base being configured to receive the seal.15. A fuel cell assembly comprising:a container configured to be pressurized; a fuel cell disposed in the container; and a metallic shield disposed between the container and the fuel cell and spaced from the container to form a flow path therebetween for a cooling fluid. 16. The fuel cell assembly of claim 15, wherein the metallic shield is configured to define an insulating layer on an inner surface of the metallic shield.17. The fuel cell assembly of claim 16, wherein the metallic shield is configured to define another insulating layer on an inner surface of the container.18. The fuel cell assembly of claim 17, wherein the insulating layer comprises an insulating material selected from the group consisting of ceramic oxides, cellular ceramic foam materials, and a combination thereof.19. The fuel cell assembly of claim 15, wherein the metallic shield further comprises a second shield wall configured to define an inner surface of the container.20. The fuel cell assembly of claim 19, wherein the insulating layer is disposed between the second shield wall and the inner surface of the container.21. The fuel cell assembly of claim 15, wherein the cooling fluid comprises an oxidant.22. A fuel cell assembly comprising:a container configured to be pressurized; a fuel cell disposed in the container; and a shield substantially surrounding a perimeter of the fuel cell; the shield being disposed between the container and the fuel cell and spaced from the container to form a flow path therebetween for a cooling fluid. 23. The fuel cell assembly of claim 22, wherein the shield substantially surrounding a perimeter of the fuel cell is configured to substantially surround an inner periphery of the container to provide generally uniform thermal shielding around the fuel cell.24. The fuel cell assembly of claim 22, wherein the shield substantially surrounding a perimeter of the fuel cell comprises a thermally conductive material.25. The fuel cell assembly of claim 22, wherein the shield is configured to define an insulating layer on an inner surface of the shield.26. The fuel cell assembly of claim 25, wherein the shield is configured to define another insulating layer on an inner surface of the container.27. The fuel cell assembly of claim 26, wherein the insulating layer comprises an insulating material selected from the group consisting of ceramic oxides, cellular ceramic foam materials, and a combination thereof.28. The fuel cell assembly of claim 22, wherein the shield further comprises a second shield wall configured to define an inner surface of the container.29. The fuel cell assembly of claim 28, wherein the insulating layer is disposed between the second shield wall and the inner surface of the container.30. A fuel cell assembly comprising:a container configured to be pressurized; a fuel cell disposed in the container; and a shield substantially surrounding an inner periphery of the container to provide generally uniform thermal shielding around the fuel cell; the shield being disposed between the container and the fuel cell and spaced from the container to form a flow path therebetween for a cooling fluid. 31. The fuel cell assembly of claim 30, wherein the shield substantially surrounding an inner periphery of the container comprises a thermally conductive material.32. The fuel cell assembly of claim 30, wherein the shield substantially surrounding an inner periphery of the container is configured to substantially surround a perimeter of the fuel cell.33. The fuel cell assembly of claim 30, wherein the shield is configured to define an insulating layer on an inner surface of the shield.34. The fuel cell assembly of claim 33, wherein the shield is configured to define another insulating layer on an inner surface of the container.35. The fuel cell assembly of claim 34, wherein the insulating layer comprises an insulating material selected from the group consisting of ceramic oxides, cellular ceramic foam materials, and a combination thereof.36. The fuel cell assembly of claim 30, wherein the shield further comprises a second shield wall configured to define an inner surface of the container.37. The fuel cell assembly of claim 36, wherein the insulating layer is disposed between the second shield wall and the inner surface of the container.38. A fuel cell assembly comprising:a container configured to be pressurized; a fuel cell disposed in the container; and a thermally conductive shield disposed between the container and the fuel cell and spaced from the container to form a flow path therebetween for a cooling fluid. 39. The fuel cell assembly of claim 38, wherein the thermally conductive shield comprises a metallic material.40. The fuel cell assembly of claim 38, wherein the thermally conductive shield is configured to substantially surround a perimeter of the fuel cell.41. The fuel cell assembly of claim 38, wherein the thermally conductive shield is configured to substantially surround an inner periphery of the container to provide generally uniform thermal shielding around the fuel cell.42. The fuel cell assembly of claim 38, wherein the thermally conductive shield is configured to define an insulating layer on an inner surface of the thermally conductive shield.43. The fuel cell assembly of claim 42, wherein the thermally conductive shield is configured to define another insulating layer on an inner surface of the container.44. The fuel cell assembly of claim 43, wherein the insulating layer comprises an insulating material selected from the group consisting of ceramic oxides, cellular ceramic foam materials, and a combination thereof.45. The fuel cell assembly of claim 38, wherein the thermally conductive shield further comprises a second shield wall configured to define an inner surface of the container.46. The fuel cell assembly of claim 45, wherein the insulating layer is disposed between the second shield wall and the inner surface of the container.