Method and coating arrangement

1. A process comprising:

transporting of a foil structure in a coating region in a vacuum chamber,

wherein the foil structure has a thickness of less than 40 nm; and

coating the foil structure by physical vapor deposition, which comprises forming a gaseous coating material in the coating region;

wherein the gaseous coating material comprises carbon, such that a protective layer is formed that comprises a carbon microstructure covering more than about 50% of the foil structure and having a fraction of pores or voids less than about 50%.

2. The process as claimed in claim 1 ,

wherein the foil structure comprises a laminate of at least one polymer and at least one metal; or

wherein the foil structure is formed by the at least one metal; or

wherein the foil structure is formed by the at least one polymer.

3. The process as claimed in claim 2 , wherein the process further comprises:

removing a surface layer of the foil structure to at least partly expose the at least one metal of the foil structure, so that a metallic surface is formed.

4. The process as claimed in claim 1 ,

wherein the gaseous coating material comprises a metal or semimetal.

5. The process as claimed in claim 1 , wherein the process further comprises:

coating the foil structure using a further gaseous coating material;

wherein a first layer is formed using the gaseous coating material and wherein a second layer is formed using the further gaseous coating material; and/or

wherein a joint layer is formed using the gaseous coating material and the further gaseous coating material, with the gaseous coating material and the further gaseous coating material being at least partially mixed with one another.

6. The process as claimed in claim 5 ,

wherein the second layer is arranged between the first layer and the foil structure; and/or

the second layer comprises a metal carbide, a metal nitride and/or a metal.

7. The process as claimed in claim 1 , wherein the process further comprises:

generating energy pulses to heat the coating so that the coating is structurally altered.

8. The process as claimed in claim 1 , further comprising:

applying an active material on the foil structure to form a first electrode which has a first chemical potential.

9. The process as claimed in claim 1 , further comprising:

forming an energy storage, wherein the energy storage comprises the foil structure.

10. The process as claimed in claim 8 , wherein the process further comprises:

assembly of the first electrode with a second electrode, where the second electrode has a second chemical potential;

encapsulating the first electrode and the second electrode.

11. The process as claimed in claim 1 , wherein the protective layer is formed on both sides of the foil structure.

12. The process as claimed in claim 1 , further comprising:

coating the foil structure using a further gaseous coating material;

wherein a joint layer is formed using the gaseous coating material and the further gaseous coating material.

13. The process as claimed in claim 12 ,

wherein the gaseous coating material and the further gaseous coating material are at least partially mixed with one another in such a way that a composition gradient is formed transverse to the foil structure in the joint layer.

14. A process comprising:

transporting of a foil structure in a coating region in a vacuum chamber,

wherein the foil structure has a thickness of less than 40 μm; and

coating the foil structure by physical vapor deposition;

which comprises forming a gaseous coating material in the coating region;

wherein the gaseous coating material comprises carbon, such that a protective layer is formed that comprises a carbon microstructure covering more than about 50% of the foil structure and having a fraction of pores or voids less than about 50%;

coating the foil structure ( 302 ) using a further gaseous coating material;

wherein a first layer is formed using the gaseous coating material and wherein a second layer is formed using the further gaseous coating material;

wherein the second layer comprises a metal carbide.

15. A process comprising:

transporting of a foil structure in a coating region in a vacuum chamber,

wherein the foil structure has a thickness of less than 40 μm; and

coating the foil structure by physical vapor deposition;

which comprises forming a gaseous coating material in the coating region;

wherein the gaseous coating material comprises carbon, such that a protective layer is formed that comprises a carbon microstructure covering more than about 50% of the foil structure and having a fraction of pores or voids less than about 50%;

applying an active battery material on the foil structure to form a first electrode which has a first chemical potential.