Porous interconnected corrugated carbon-based network (iccn) composite

Patent metadata

Field	Value
Publication number	US-2024249890-A1
Application number	US-202318467964-A
Country	US
Kind code	A1
Filing date	Sep 15, 2023
Priority date	Nov 18, 2014
Publication date	Jul 25, 2024
Grant date	—

Abstract

A porous interconnected corrugated carbon-based network (ICCN) composite and methods for making the same are disclosed. The porous ICCN composite is made up of a plurality of carbon layers that are interconnected and expanded apart from one another to form a plurality of pores. Metallic nanoparticles are disposed within the plurality of pores. In one embodiment, a light exposure only based method for producing the porous ICCN composite is disclosed. In another embodiment a light exposure plus an electrodeposition method for producing the porous ICCN composite is disclosed. In yet another exemplary embodiment, a capacitor having a first electrode and a second electrode separated from the first electrode by a dielectric wherein at least one of the first electrode and the second electrode is formed from the porous ICCN composite is disclosed.

First claim

What is claimed is:

1 . An electrode comprising:
a porous interconnected corrugated carbon-based network (ICCN) composite that comprises: a plurality of carbon layers that are interconnected and expanded apart from one another to form a plurality of pores, and metallic nanoparticles, wherein a portion of the plurality of pores has an average minor axis diameter of at least about 75 nanometers.

2 . The electrode of claim 1 , wherein a portion of the metallic nanoparticles is nanoflowers or nanoflakes.

3 . The electrode of claim 2 , wherein the portion of the metallic nanoparticles is MnO 2 .

4 . The electrode of claim 1 , wherein a percentage of surface area coverage of the metallic nanoparticles on the plurality of carbon layers is at least 15%.

5 . The electrode of claim 1 , wherein a percentage of surface area coverage of the metallic nanoparticles on the plurality of carbon layers is at least 30%.

6 . The electrode of claim 1 , wherein a percentage of surface area coverage of the metallic nanoparticles on the plurality of carbon layers is at least 70%.

7 . The electrode of claim 1 , wherein a percentage of surface area coverage of the metallic nanoparticles on the plurality of carbon layers is at least 90%.

8 . The electrode of claim 1 , wherein the average minor axis diameter is at most about 550 nanometers.

9 . The electrode of claim 1 , wherein at least a portion of adjacent carbon layers of the plurality of carbon layers is separated by at least 2 nanometers.

10 . The electrode of claim 1 , wherein at least a portion of the carbon layers of the plurality carbon layers has a thickness of one carbon atom.

11 . The electrode of claim 1 , wherein the metallic nanoparticles comprise metal oxide particles.

12 . The electrode of claim 11 , wherein the metal oxide particles are particles of manganese dioxide (MnO 2 ), ruthenium dioxide (RuO 2 ), cobalt oxide (CO 3 O 4 ), nickel oxide (NiO), iron oxide (Fe 2 O 3 ), copper oxide (CuO), molybdenum trioxide (MoO 3 ), vanadium pentoxide (V 2 O 5 ), nickel hydroxide (Ni(OH) 2 ), or any combination thereof.

13 . The electrode of claim 1 , wherein an electrical conductivity of the plurality of carbon layers is greater than about 0.1 siemens/meter.

14 . The electrode of claim 1 , wherein a total surface area per unit mass of the plurality of carbon layers is about 1500 square meters per gram to about 1620 square meters per gram.

15 . The electrode of claim 1 , wherein a percentage of surface area coverage of the metallic nanoparticles on the plurality of carbon layers is at least about 30%.

16 . The electrode of claim 1 , wherein the electrode comprises a plurality of extending electrode digits.

17 . The electrode of claim 1 , wherein the electrode has a volumetric capacitance of at least about 300 F/cm 3 .

18 . The electrode of claim 1 , wherein the electrode has an areal capacitance of at least about 0.3 F/cm 2 .

19 . The electrode of claim 1 , wherein a resistance of the electrode is substantially the same after about 1000 cycles of bending.

20 . A method of producing a porous interconnected corrugated carbon-based network (ICCN) composite comprising:
a. forming the porous ICCN comprising a plurality of carbon layers that are interconnected and expanded apart from one another to form a plurality of pores; b. submerging the porous ICCN into an aqueous solution having a metal precursor; and c. converting the metal precursor to a metal nanoparticle using an electric current and light exposure.

Assignees

• Univ California

Inventors

• El-Kady Maher F
• Kaner Richard B
• Hwang Jee Youn

Classifications

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• H01G11/02

  using combined reduction-oxidation reactions, e.g. redox arrangement or solion · CPC title

• H01G11/70

  characterised by their structure · CPC title

• C01B32/194

  After-treatment · CPC title

• C01B32/184 Primary

  Preparation · CPC title