Fuel cell coating

1. A fuel cell stack component comprising:

an interconnect;

a metallic layer applied to a surface of the interconnect, the metallic layer including at least one first chemical element;

an oxide layer applied to the metallic layer, wherein the oxide layer includes a second chemical element, other than oxygen, that is distinct from the first chemical element; and

a bonding layer applied to the oxide layer and binding the oxide layer to an electrode layer, the bonding layer comprising spinel materials, a mixture of metal and metal oxides, or a mixture of metals.

2. The fuel cell stack component of claim 1 , wherein the interconnect is positioned on a cathode side of a solid oxide fuel cell.

3. The fuel cell stack component of claim 2 , wherein the fuel cell stack component further comprises a separator plate.

4. The fuel cell stack component of claim 1 , wherein the metallic layer comprises cobalt, copper, nickel, iron, titanium or a combination of these.

5. The fuel cell stack component of claim 1 , wherein the metallic layer comprises a binary or ternary alloy including cobalt, copper, nickel, iron, titanium or a combination of these.

6. The fuel cell stack component of claim 1 , wherein the metallic layer comprises a cobalt-iron alloy.

7. The fuel cell stack component of claim 1 , wherein the metallic layer is less than 10 microns thick.

8. The fuel cell stack component of claim 1 , wherein the metallic layer is applied to the fuel cell component using electroplating, electroless plating, vapor deposition, or sputtering or a combination of these.

9. The fuel cell stack component of claim 1 , wherein the oxide layer comprises spinel-based or perovskite-based materials.

10. The fuel cell stack component of claim 1 , wherein the oxide layer comprises a material selected from a group comprising (Mn, Co) 3 O 4 , (Mn, Co, Cr) 3 O 4 , (La, Sr)MnO 3 , (Mn, Co, Fe) 3 O 4 , and (La, Sr)(Co, Mn)O 3 .

11. The fuel cell stack component of claim 1 , wherein the oxide layer is applied to the metallic layer using a spray process, painting, a dip process, electrophoretic deposition, a screen printing process, or a combination of these.

12. The fuel cell stack component of claim 1 , wherein the oxide layer comprises metallic particles and an oxide matrix.

13. A fuel cell arrangement, comprising:

an anode;

a cathode;

a solid oxide electrolyte between the anode and the cathode;

an interconnect;

a metallic layer bonded to the interconnect, the metallic layer including at least one first chemical element;

an oxide layer bonded to the metallic layer, the oxide layer including a second chemical element, other than oxygen, that is distinct from the first chemical element; and

a bonding layer applied to the oxide layer and binding the oxide layer to an electrode layer, the bonding layer comprising spinel materials, a mixture of metal and metal oxides, or a mixture of metals.

14. The fuel cell arrangement of claim 13 , wherein the metallic layer comprises a cobalt-iron alloy, and the oxide layer comprises spinel-based or perovskite-based materials.

15. The fuel cell arrangement of claim 13 , including a separator plate, the metallic layer bonded to the separator plate and the oxide layer bonded to the metallic layer.

16. A method, comprising;

applying a metallic layer to an interconnect, the metallic layer including at least one first chemical element;

applying an oxide layer to the metallic layer, the oxide layer including a second chemical element, other than oxygen, that is distinct from the first chemical element; and

applying a bonding layer to the oxide layer and binding the oxide layer to an electrode layer, the bonding layer comprising spinel materials, a mixture of metal and metal oxides, or a mixture of metals.

17. The method of claim 16 , wherein applying the metallic layer comprises a process selected from a group including electroplating, electroless plating, vapor deposition, sputtering, or a combination of these.

18. The method of claim 16 , wherein applying the oxide layer comprises a process selected from a group including a wet spray process, painting, electrophoretic deposition, a dip process, a screen printing process, or a combination of these.

19. The fuel cell stack component of claim 1 , wherein the bonding layer comprises (Mn, Co) 3 O 4 , (Mn, Co, Fe) 3 O 4 , (Mn, Cu) 3 O 4 , a mixture of MnO and cobalt or a mixture of Mn and Co.

20. The method of claim 16 , further comprising:

assembling a fuel cell comprising:

an anode;

a cathode;

solid oxide electrolyte between the anode and the cathode;

an interconnect produced according to the method of claim 18 ;

a metallic layer bonded to the interconnect, the metallic layer including at least one first chemical element;

an oxide layer bonded to the metallic layer, the oxide layer including a second chemical element, other than oxygen, that is distinct from the first chemical element; and

a bonding layer applied to the oxide layer and binding the oxide layer to an electrode layer, the bonding layer comprising spinel materials, a mixture of metal and metal oxides, or a mixture of metals;

wherein the bonding layer comprises (Mn, Co) 3 O 4 , (Mn, Co, Fe) 3 O 4 , (Mn Cu) 3 O 4 , a mixture of MnO and cobalt or a mixture of Mn and Co.