Polymer-nanocarbon composites, methods of making composites, and energy storage devices including the composite

Patent metadata

Field	Value
Publication number	US-9552929-B2
Application number	US-201414331264-A
Country	US
Kind code	B2
Filing date	Jul 15, 2014
Priority date	Jul 15, 2013
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

Embodiments of the present disclosure, in one aspect, relate to composites including a carbon nanomaterial having a redox-active material, such as a polymer containing redox groups, disposed on the carbon nanomaterial, methods of making the composite, methods of storing energy, and the like.

First claim

We claim:

1. A composite, comprising:
a carbon nanomaterial having an electrically non-conducting polymer coated on a portion of the carbon nanomaterial, wherein the electrically non-conducting polymer is selected from the group consisting of: a form of lignin, polyvinylquinone, polyvinylferrocene, a polyvinylene polymer containing pendant redox groups, and a combination thereof.

2. The composite of claim 1 , wherein the carbon nanomaterial includes a plurality of carbon nanostructures.

3. The composite of claim 2 , wherein the carbon nanomaterial is selected from the group consisting of: a mesoporous carbon, a carbon nanoparticle, a graphitic carbon, an activated carbon, a single walled carbon nanotube, a multi-walled carbon nanotube, a carbon nanowire, and a combination thereof.

4. The composite of claim 3 , wherein the electrically non-conducting polymer coats about 1% to 100% of the surface area of the carbon nanomaterial.

5. The composite of claim 2 , wherein the carbon nanostructure has a dimension of about 0.4 nm to 100 mm.

6. The composite of claim 2 , wherein the carbon nanostructure has lateral dimensions of about 10 nm to 5 cm.

7. The composite of claim 1 , wherein the carbon nanomaterial is a three dimensional porous structure.

8. The composite of claim 7 , wherein the carbon nanostructure has a thickness of about 0.4 nm to 3 mm.

9. The composite of claim 1 , wherein the carbon nanomaterial is chemically grown, coated, spread, or spray coated directly on a current collector, optionally in the presence of a binding material, with the electrically non-conducting polymer or monomer, wherein the current collector is selected from a group consisting of: copper, aluminum, nickel, iron, and a combination thereof.

10. A method of making a composite, comprising:
chemically growing, coating, or spreading a carbon nanomaterial directly on a current collector, wherein the carbon nanomaterial includes an electrically non-conducting polymer coated on a portion of the carbon nanomaterial, wherein the electrically non-conducting polymer is selected from the group consisting of: a form of lignin, polyvinylquinone, polyvinylferrocene, a polyvinylene polymer containing pendant redox groups, and a combination thereof.

11. The method of claim 10 , wherein the current collector is selected from a group consisting of: copper, aluminum, nickel, iron, and a combination thereof.

12. An energy storage device, comprising:
at least one carbon nanomaterial having a an electrically non-conducting polymer coated on a portion of the carbon nanomaterial, wherein the electrically non-conducting polymer is selected from the group consisting of: a form of lignin, polyvinylquinone, polyvinylferrocene, a polyvinylene polymer containing pendant redox groups, and a combination thereof.

13. The energy storage device of claim 12 , further comprising:
a first electrode, a separator, and a second electrode, wherein a first carbon nanomaterial having a electrically non-conducting polymer is disposed between the first electrode and the separator and a second carbon nanomaterial is disposed between the second electrode and the separator.

14. The energy storage device of claim 12 , wherein the current collector is selected from a group consisting of: copper, aluminum, nickel, iron, and a combination thereof.

15. The composite of claim 2 , wherein the carbon nanomaterial is selected from the group consisting of: a helically coiled carbon nanostructure, a multiwalled helically coiled carbon nanostructure, and a combination thereof.

16. The method of claim 10 , chemically growing, coating, or spreading includes spray coating the carbon nanomaterial directly on the current collector.

17. The method of claim 16 , further comprising spray coating in the presence of a binding material with the electrically non-conducting polymer.

18. The method of claim 10 , wherein the carbon nanomaterial is selected from the group consisting of: a helically coiled carbon nanostructure, a multiwalled helically coiled carbon nanostructure, and a combination thereof.

19. The method of claim 10 , wherein the carbon nanomaterial is selected from the group consisting of: a mesoporous carbon, a carbon nanoparticle, a graphitic carbon, an activated carbon, a single walled carbon nanotube, a multi-walled carbon nanotube, a carbon nanowire, and a combination thereof.

20. The energy storage device of claim 12 , wherein the carbon nanomaterial is selected from the group consisting of: a helically coiled carbon nanostructure, a multiwalled helically coiled carbon nanostructure, and a combination thereof.

21. The energy storage device of claim 12 , wherein the carbon nanomaterial is selected from the group consisting of: a mesoporous carbon, a carbon nanoparticle, a graphitic carbon, an activated carbon, a single walled carbon nanotube, a multi-walled carbon nanotube, a carbon nanowire, and a combination thereof.

Assignees

• Univ Clemson

Inventors

• Roberts Mark E
• Rao Apparao M
• Podila Ramakrishna
• Emmett Robert

Classifications

• H01M4/366

  as layered products · CPC title

• H01G11/84

  Processes for the manufacture of hybrid or EDL capacitors, or components thereof · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01M4/583

  Carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title

• H01G11/68

  characterised by their material · CPC title