High-voltage devices

Patent metadata

Field	Value
Publication number	US-11842850-B2
Application number	US-202017110397-A
Country	US
Kind code	B2
Filing date	Dec 3, 2020
Priority date	Jan 22, 2016
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

The present disclosure provides supercapacitors that may avoid the shortcomings of current energy storage technology. Provided herein are supercapacitor devices, and methods of fabrication thereof comprising the manufacture or synthesis of an active material on a current collector and/or the manufacture of supercapacitor electrodes to form planar and stacked arrays of supercapacitor electrodes and devices. Prototype supercapacitors disclosed herein may exhibit improved performance compared to commercial supercapacitors. Additionally, the present disclosure provides a simple, yet versatile technique for the fabrication of supercapacitors through masking and etching.

First claim

What is claimed is:

1. A supercapacitor device comprising:
an array of electrodes, wherein each electrode comprises:
a current collector; and
an active material directly on a portion of a first surface of the current collector, wherein the active material comprises two or more corrugated carbon layers, each corrugated carbon layer having two or more of parallel ridges and furrows, wherein the array of electrodes comprises a linear array of electrodes comprising at least one isobilateral electrode and at least two anisobilateral electrodes.

2. The supercapacitor device of claim 1 , further comprising the active material directly on a portion of a second surface of the current collector.

3. The supercapacitor device of claim 1 , wherein each electrode in the array of electrodes is separated from a subsequent electrode by a gap.

4. The supercapacitor device of claim 1 , wherein the current collector comprises a metal film, a polymeric film, or any combination thereof, wherein the metal film comprises silver, copper, gold, aluminum, calcium, tungsten, zinc, brass, bronze, nickel, lithium, iron, platinum, tin, carbon steel, lead, titanium, stainless steel, mercury, chromium, gallium arsenide, or any combination thereof, and wherein the polymeric film comprises polyfluorene, polyphenylene, polypyrene, polyazulene, polynaphthalene, polyacetylene, poly p-phenylene vinylene, polypyrrole, polycarbazole, polyindole, polyazepinem, polyaniline, polythiophene, poly 3,4-ethylenedioxythiophene, poly p-phenylene sulfide, polyacetylene, or any combination thereof.

5. The supercapacitor device of claim 1 , wherein the active material comprises carbon, activated carbon, graphene, polyaniline, polythiophene, an interconnected corrugated carbon-based network (ICCN), or any combination thereof.

6. The supercapacitor device of claim 1 , wherein the active material has a specific surface area of from about 250 meters squared per gram to about 3,500 meters squared per gram.

7. The supercapacitor device of claim 1 , wherein the active material has a conductivity of from about 750 siemens/meter to about 3,000 siemens/meter.

8. The supercapacitor device of claim 1 , wherein the array of electrodes is a two-dimensional planar array of electrodes.

9. The supercapacitor device of claim 8 , further comprising an aqueous electrolyte, wherein the number of electrodes is 5, provided that a produced voltage potential across the array of electrodes is from 2.5 V to 10 V.

10. The supercapacitor device of claim 8 , further comprising an electrolyte comprising tetraethyl ammonium tetrafluoroborate (TEABF4) in acetonitrile, wherein the number of electrodes is 5, provided that a voltage potential produced across the array of electrodes is from 6 V to 24 V.

11. The supercapacitor device of claim 8 , further comprising an aqueous electrolyte, wherein the number of electrodes is 180, provided that a voltage potential produced across the array of electrodes is from 100 V to 360 V.

12. The supercapacitor device of claim 8 , further comprising an electrolyte comprising tetraethyl ammonium tetrafluoroborate (TEABF4) in acetonitrile, wherein the number of electrodes is 72, provided that a voltage potential produced across the array of electrodes is from 100 V to 360 V.

13. The supercapacitor device of claim 1 , wherein the array of electrodes is a stacked array of electrodes.

14. The supercapacitor device of claim 13 , further comprising at least one or more of a separator and a support between a pair of adjacent electrodes.

15. The supercapacitor device of claim 13 , wherein the stacked array of electrodes comprises one or more single-sided electrodes and one or more double-sided electrodes.

16. The supercapacitor device of claim 1 , further comprising an electrolyte, wherein the electrolyte is a liquid, a solid, a gel, or any combination thereof comprising a polymer, silica, fumed silica, fumed silica nano-powder, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, phosphoric acid, tetraethyl ammonium tetrafluoroborate (TEABF4), acetonitrile, 1-ethyl-3-methylimidazoliumtetrafluoroborate, ethanolammonium nitrate, a dicarboxylate, a prostaglandin, adenosine monophosphate, guanosine monophosphate, a p-aminohippurate, polysiloxane, polyphosphazene, potassium hydroxide, polyvinyl alcohol, or any combination thereof.

Assignees

• Univ California

Inventors

• Kaner Richard Barry
• El-Kady Maher F

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• H01G11/60 Primary

  characterised by the solvent · CPC title

• H01G11/26

  characterised by their structure, e.g. multi-layered, porosity or surface features · CPC title

• H01G11/28

  arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives · CPC title

• H01G11/30

  characterised by their material · CPC title