Laser induced graphene materials and their use in electronic devices

Patent metadata

Field	Value
Publication number	US-2020112026-A1
Application number	US-201916701390-A
Country	US
Kind code	A1
Filing date	Dec 3, 2019
Priority date	Feb 17, 2014
Publication date	Apr 9, 2020
Grant date	—

Abstract

In some embodiments, the present disclosure pertains to methods of producing a graphene material by exposing a polymer to a laser source. In some embodiments, the exposing results in formation of a graphene from the polymer. In some embodiments, the methods of the present disclosure also include a step of separating the formed graphene from the polymer to form an isolated graphene. In some embodiments, the methods of the present disclosure also include a step of incorporating the graphene material or the isolated graphene into an electronic device, such as an energy storage device. In some embodiments, the graphene is utilized as at least one of an electrode, current collector or additive in the electronic device. Additional embodiments of the present disclosure pertain to the graphene materials, isolated graphenes, and electronic devices that are formed by the methods of the present disclosure.

First claim

What is claimed is:

1 . A graphene material comprising:
a graphene derived from a polymer through exposure of the polymer to a laser source,
wherein the graphene comprises a porous structure,
wherein the porous structure comprises a mesoporous structure, a microporous structure, or combinations thereof, and
wherein the graphene is separated from the polymer or positioned on a surface of the polymer.

2 . The graphene material of claim 1 , wherein the graphene is separated from the polymer.

3 . The graphene material of claim 1 , wherein the graphene is positioned on a surface of the polymer.

4 . The graphene material of claim 3 , wherein the graphene comprises a pattern on the surface of the polymer.

5 . The graphene material of claim 3 , wherein the graphene is embedded with the polymer.

6 . The graphene material of claim 1 , wherein the polymer is in the form of a substrate.

7 . The graphene material of claim 1 , wherein the polymer lacks graphene oxide and graphite oxide.

8 . The graphene material of claim 1 , wherein the graphene comprises multi-layered graphene.

9 . The graphene material of claim 1 , wherein the graphene comprises a polycrystalline lattice.

10 . The graphene material of claim 1 , wherein the graphene is in the shape of a foam.

11 . The graphene material of claim 1 , wherein the graphene comprises a mesoporous structure.

12 . The graphene material of claim 1 , wherein the graphene comprises microporous structure.

13 . The graphene material of claim 1 , wherein the graphene is in the shape of a three-dimensional network.

14 . The graphene material of claim 1 , wherein the graphene has a surface area ranging from about 100 m 2 /g to about 3,000 m 2 /g.

15 . The graphene material of claim 1 , wherein the graphene comprises doped graphene.

16 . The graphene material of claim 15 , wherein the doped graphene comprises a dopant selected from the group consisting of heteroatoms, metals, metal oxides, metal chalcogenides, metal nanoparticles, metal salts, organic additives, inorganic additives, and combinations thereof.

17 . The graphene material of claim 1 , wherein the graphene comprises boron-doped graphene.

18 . The graphene material of claim 1 , wherein the graphene material is a component of an electronic device.

19 . The graphene material of claim 18 , wherein the electronic device is an energy storage device or an energy generation device selected from the group consisting of super capacitors, micro supercapacitors, pseudo capacitors, batteries, micro batteries, lithium-ion batteries, sodium-ion batteries, magnesium-ion batteries, electrodes, conductive electrodes, sensors, photovoltaic devices, electronic circuits, fuel cell devices, thermal management devices, biomedical devices, and combinations thereof.

20 . The graphene material of claim 18 , wherein the graphene is utilized as an electrode in the electronic device.

Assignees

• Tour James M
• Lin Jian
• Peng Zhiwei
• Kittrell Carter
• Univ Rice William M

Inventors

• Tour James M
• Lin Jian
• Peng Zhiwei
• Kittrell Carter

Classifications

• C01P2006/40

  Electric properties · CPC title

• C08G73/10

  Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors · CPC title

• H01M4/366

  as layered products · CPC title

• C01B2204/04

  Specific amount of layers or specific thickness · CPC title

• H01M4/663

  containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres · CPC title