Structured composite materials

Patent metadata

Field	Value
Publication number	US-10756334-B2
Application number	US-201816223785-A
Country	US
Kind code	B2
Filing date	Dec 18, 2018
Priority date	Dec 22, 2017
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

A method of producing a structured composite material is described. A porous media is provided, an electrically conductive material is deposited on surfaces or within pores of the plurality of porous media particles, and an active material is deposited on the surfaces or within the pores of the plurality of porous media particles coated with the electrically conductive material to coalesce the plurality of porous media particles together and form the structured composite material.

First claim

What is claimed is:

1. A method of producing a structured composite material, comprising:
providing a plurality of porous media particles;
providing a plurality of conductive particles;
forming a carrier fluid mixture by mixing the plurality of porous media particles and the plurality of conductive particles in a carrier fluid; and
coalescing the plurality of porous media particles and the plurality of conductive particles together using an electrically conductive material that is deposited on surfaces of or within pores of the plurality of porous media particles and the plurality of conductive particles to form a first structured composite material, wherein the porous media is broken up and the electrically conductive materials are deposited in a microwave plasma reactor in a single step.

2. The method of claim 1 , further comprising:
depositing an active material on surfaces of or within the pores of the first structured composite material to form a second structured composite material.

3. The method of claim 1 , wherein:
the porous media comprises at least one of silicon or carbon.

4. The method of claim 1 , wherein:
each of the plurality of porous media particles further comprises a plurality of carbon nanoparticles, each carbon nanoparticle comprising graphene, with no seed particles;
the graphene in the plurality of carbon nanoparticles comprises up to 15 layers;
a ratio percentage of carbon to other elements, except hydrogen, in the plurality of porous media particles is greater than 99%;
a median size of the porous media particles that comprise the carbon nanoparticles is from 1 to 50 microns;
a surface area of the plurality of porous media particles is from 50 m 2 /g to 300 m 2 /g, when measured via a Brunauer-Emmett-Teller (BET) method with nitrogen as the adsorbate; and
the plurality of porous media particles, when compressed, have an electrical conductivity from 500 S/m to 20,000 S/m.

5. The method of claim 1 , wherein:
each of the plurality of conductive particles further comprises a plurality of carbon nanoparticles, each carbon nanoparticle comprising graphene, with no seed particles;
the graphene in the plurality of carbon nanoparticles comprises up to 15 layers;
a ratio percentage of carbon to other elements, except hydrogen, in the plurality of conductive particles is greater than 99%;
a median size of the porous media particles that comprise the carbon nanoparticles is from 1 to 50 microns;
a surface area of the plurality of conductive particles is from 50 m 2 /g to 300 m 2 /g, when measured via a Brunauer-Emmett-Teller (BET) method with nitrogen as the adsorbate; and
the plurality of conductive particles, when compressed, have an electrical conductivity from 500 S/m to 20,000 S/m.

6. The method of claim 1 , wherein:
the electrically conductive material comprises carbon.

7. The method of claim 1 , wherein:
the carrier fluid comprises carbon.

8. The method of claim 1 , wherein:
the carrier fluid comprises a material selected from the group consisting of hydrocarbon gases, C 2 H 2 , C 2 H 4 , C 2 H 6 , C 3 H 6 , carbon dioxide with water, trimethylaluminum (TMA), trimethylgallium (TMG), glycidyl methacrylate (GMA), methylacetylene-propadiene, propadiene, propane, propyne, acetylene, and any mixture or combination thereof.

9. The method of claim 1 , wherein:
the carrier fluid comprises a material selected from the group consisting of isopropyl alcohol (IPA), ethanol, methanol, acetone, condensed hydrocarbons (e.g., hexane), other liquid hydrocarbons, and any mixture or combination thereof.

10. The method of claim 1 , wherein:
the coalescing of the porous media and the plurality of conductive particles together occurs in a reactor, wherein the reactor provides energy to the carrier fluid, the porous media and the plurality of conductive particles to form the structured composite materials.

11. The method of claim 10 , wherein:
the reactor is a microwave plasma reactor, a thermal reactor, a plasma torch, a radio frequency reactor, a particle drum coater, or an ultraviolet reactor.

12. A method of producing a structured composite material, comprising:
providing a plurality of porous media particles;
providing a plurality of conductive particles;
forming a carrier fluid mixture by mixing the plurality of porous media particles and the plurality of conductive particles in a carrier fluid; and
coalescing the plurality of porous media particles and the plurality of conductive particles together using an electrically conductive material that is deposited on surfaces of or within pores of the plurality of porous media particles and the plurality of conductive particles to form a first structured composite material, wherein the plurality of conductive particles are broken up and the electrically conductive materials are deposited in a microwave plasma reactor in a single step.

13. The method of claim 12 , further comprising:
forming the plurality of porous media particles using a method comprising:
providing a first process input material; and
converting the first process input material into first separated components by adding energy to the first process input material;
wherein:
one of the first separated components comprises the plurality of porous media particles; and
the converting of the first process input material occurs at a pressure of at least 0.1 atmosphere; and
forming the plurality of conductive particles using a method comprising:
providing a second process input material; and
converting the second process input material into second separated components by adding energy to the second process input material;
wherein:
one of the second separated components comprises the plurality of conductive particles; and
the converting of the second process input material occurs at a pressure of at least 0.1 atmosphere.

14. The method of claim 13 , wherein:
the first and second process input materials are liquids or gases.

15. The method of claim 13 , wherein:
the first process input material comprises carbon; and
the plurality of porous media particles comprise a carbon allotrope.

16. The method of claim 13 , wherein:
the second process input material comprises carbon; and
the plurality of conductive particles comprise a carbon allotrope.

17. The method of claim 13 , wherein:
the energy added to the first and second process input materials is microwave energy or thermal energy.

18. The method of claim 13 , wherein:
the forming the plurality of porous media particles occurs in a first region of a reactor;
the forming the plurality of conductive particles occurs in a second region of a reactor; and
the depositing the electrically conductive material occurs in a third region of a reactor;
wherein the first, second and third regions of the reactor are arranged such that the porous media and conductive particles exit the first and second regions of the reactor, respectively, and enter the third region of the reactor without being exposed to an environment containing more than 100 ppm of oxygen.

19. The method of claim 18 , wherein:
the reactor comprises a first chamber; and
the first, second and third regions of the reactor are different regions within the first chamber.

20. The method of claim 18 , wherein:
the reactor comprises a first chamber, a second chamber, and a third chamber;
the first region of the reactor is within the first chamber;
the second region of the reactor is within the second chamber;
the third

Assignees

• Lyten Inc

Inventors

• Stowell Michael W
• Anzelmo Bryce H
• Tanner David
• Lanning Bruce
• Cruz Joe Griffith

Classifications

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• C01B32/182

  Graphene · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M4/139

  Processes of manufacture · CPC title

• H01M4/366

  as layered products · CPC title