Methods of preventing corrosion of surfaces by application of energy storage-conversion devices

Patent metadata

Field	Value
Publication number	US-9637827-B2
Application number	US-201414504350-A
Country	US
Kind code	B2
Filing date	Oct 1, 2014
Priority date	Oct 1, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

The present disclosure pertains to methods of protecting a surface (e.g., a metal surface) from corrosion by conformably attaching a hybrid device comprising at least one multilayer energy storage device and at least one energy conversion device. In some embodiments, the multilayer energy storage device is formed by the following steps: (1) applying a non-solid negative electrode current collector composition above the surface to form an negative electrode current collector layer above the surface; (2) applying a non-solid negative electrode composition above the negative electrode current collector layer to form an negative electrode layer above the negative electrode current collector layer; (3) applying a non-solid electrically insulating composition above the negative electrode layer to form an electrically insulating layer above the negative electrode layer; (4) applying a non-solid positive electrode composition above the electrically insulating layer to form a positive electrode layer above the electrically insulating layer; and (5) applying a non-solid positive electrode current collector composition above the positive electrode layer to form a positive electrode current collector layer above the positive electrode layer.

First claim

What is claimed is:

1. A method of protecting a metal surface from corrosion, said method comprising:
conformably attaching a hybrid device directly onto the metal surface,
wherein the hybrid device comprises at least one energy storage device and at least one energy conversion device,
wherein the energy storage device is a multilayer energy storage device, and

wherein the multilayer energy storage device is formed by a process comprising the steps of:
applying a first layer comprising a non-solid current collector composition to the metal surface to form a negative electrode current collector layer above the metal surface;
applying a second layer comprising a first non-solid electrode composition to the negative electrode current collector layer to form a negative electrode layer above the negative electrode current collector layer;
applying a non-solid electrically insulating composition above the negative electrode layer to form an electrically insulating layer above the negative electrode layer;
applying a second non-solid electrode composition above the electrically insulating layer to form a positive electrode layer above the electrically insulating layer; and
applying a second non-solid current collector composition above the positive electrode layer to form a positive electrode current collector layer above the positive electrode layer, and
wherein the negative electrode current collector of the energy storage device is in direct contact with the metal surface.

2. The method of claim 1 , wherein the hybrid device is mechanically flexible.

3. The method of claim 1 , wherein the hybrid device is mechanically rigid.

4. The method of claim 1 , wherein the hybrid device is a single unit comprising at least one energy conversion device and at least one energy storage device.

5. The method of claim 4 , wherein the at least one energy conversion device and the at least one energy storage device are combined in a monolithic unit.

6. The method of claim 4 , wherein the at least one energy conversion device and the at least one energy storage device are combined by physical attachment using adhesion, epoxies, mechanical means or combinations thereof.

7. The method of claim 4 , wherein at least one of an isolating layer is placed between the energy conversion device and energy storage device.

8. The method of claim 7 , wherein the isolating layer comprises an electrically insulating layer, thermally insulating layer, vibration resistant layer or combinations thereof.

9. The method of claim 7 , wherein the isolating layer is attached to at least one energy conversion device and at least one energy storage device by physical attachment using adhesion, epoxies, mechanical means or combinations thereof.

10. The method of claim 1 , wherein the energy storage device is selected from the group consisting of capacitors, supercapacitors, batteries, hybrids and combinations thereof.

11. The method of claim 1 , wherein the energy conversion device is selected from the group consisting of solar cells, thermoelectrics, piezoelectrics, and combinations thereof.

12. The method of claim 1 , wherein a positive electrode of the energy storage device is in electrical contact with the environment.

13. The method of claim 12 , wherein the positive electrode of the energy storage device is grounded.

14. The method of claim 1 , wherein a negative electrode of the energy conversion device is electrically connected to the negative electrode of the energy storage device and a positive electrode of the energy conversion device is electrically connected to a positive electrode of the energy storage device.

15. The method of claim 14 , wherein the electrical connections comprise electrically conducting wires.

16. The method of claim 1 , wherein the metal surface is mechanically flexible.

17. The method of claim 1 , wherein the metal surface is mechanically rigid.

18. The method of claim 1 , wherein the metal surface is electrically conducting.

19. The method of claim 1 , wherein the second layer is applied to the negative electrode current collector layer multiple times to form a plurality of negative electrode layers above the negative electrode current collector layer.

20. The method of claim 1 , wherein the first layer is applied to the metal surface multiple times to form a plurality of negative electrode current collector layers above the metal surface.

21. The method of claim 1 , wherein the non-solid electrically insulating composition is applied to the negative electrode layer multiple times to form a plurality of electrically insulating layers above the negative electrode layer.

22. The method of claim 1 , wherein the second non-solid electrode composition is applied to the electrically insulating layer multiple times to form a plurality of positive electrode layers above the electrically insulating layer.

23. The method of claim 1 , wherein the second non-solid current collector composition is applied to the positive electrode layer multiple times to form a plurality of positive electrode current collector layers above the positive electrode layer.

24. A method of protecting a metal surface from corrosion, said method comprising:
conformably attaching a hybrid device directly onto the metal surface,
wherein the hybrid device comprises at least one energy storage device and at least one energy conversion device,

wherein the energy storage device is a multilayer energy storage device, and wherein the multilayer energy storage device is formed by a process comprising the steps of:
applying a first non-solid electrode composition to the metal surface to form a negative electrode layer above the metal surface;
applying a non-solid electrically insulating composition to the negative electrode layer to form an electrically insulating layer above the negative electrode layer;
applying a second non-solid electrode composition to the electrically insulating layer to form a positive electrode layer above the electrically insulating layer; and
applying a non-solid current collector composition above the positive electrode layer to form a positive electrode current collector layer above the positive electrode layer, and
wherein the negative electrode of the energy storage device is in direct contact with the metal surface.

25. The method of claim 24 , wherein the first non-solid electrode composition is applied to the metal surface multiple times to form a plurality of negative electrode layers above the metal surface.

26. The method of claim 24 , wherein the non-solid electrically insulating composition is applied to the negative electrode layer multiple times to form a plurality of electrically insulating layers above the negative electrode layer.

27. The method of claim 24 , wherein the second non-solid electrode composition is applied to the electrically insulating layer multiple times to form a plurality of positive electrode layers above the electrically insulating layer.

28. The method of claim 24 , wherein the non-solid current collector composition is applied to the positive electrode layer multiple times to form a plurality of positive electrode current collector layers above the positive electrode layer.

29. The method of claim 1 or 24 , wherein one or more of the applying steps are selected from the group consisting of spraying, brushing,

Assignees

• Univ Rice William M

Inventors

• Galande Charudatta
• Singh Neelam
• Khatiwada Suman
• Ajayan Pulickel M

Classifications

• C23F13/06 Primary

  Constructional parts, or assemblies of cathodic-protection apparatus · CPC title

• H01M6/40

  Printed batteries {, e.g. thin film batteries} · CPC title

• H01M10/46

  Accumulators structurally combined with charging apparatus (circuits for charging H02J7/00) · CPC title

• H01M10/465

  with solar battery as charging system · CPC title

• H01M10/0436

  Small-sized flat cells or batteries for portable equipment · CPC title