High surface area nano fibers for supercapacitor devices

Patent metadata

Field	Value
Publication number	US-9773621-B1
Application number	US-201715413830-A
Country	US
Kind code	B1
Filing date	Jan 24, 2017
Priority date	Nov 22, 2011
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

An apparatus and method for the uniform dispersion of nano scaled redox particles in a conductive fiber including, combining at least one nano sized redox capable material having metal oxides and/or metals, at least one conductive binder, and at least one solvent to form electrically conductive metal imbedded fiber(s) by fiber spinning and the conductive polymeric binder having a molecular weight greater than 20,000 Daltons, and coating a substrate with the electrically conductive fiber(s) to form an active layer substrate complex having a conductivity greater than 0.05 S/cm.

First claim

What is claimed:

1. An active layer for a battery, comprising:
at least one non-polymeric redox capable material having a metal and/or metal oxide, at least one conductive binder, and at least one solvent formed to produce electrically conductive fiber(s) with embedded redox cores by fiber and said fibers having a high molecular weight greater than 20,000 Daltons; and
at least one substrate with said electrically conductive fiber(s) to form an active layer/substrate complex having a conductivity greater than 0.05 S/cm.

2. The layer according to claim 1 , wherein said solvent is conductive having a minimum conductivity of about 100 S/cm.

3. The layer according to claim 1 , wherein said solvent(s) is selected from the group consisting of chloroform, dimethyl formamide, chlorobenzene, dichlorobenzene, and any combination thereof.

4. The layer according to claim 1 , wherein said binder is selected from the group consisting poly 3-hexylthiophene, Poly(2-methoxyl-5-(2-ethylhexoxy)1,4-phenylene vinylene, Poly(bis-2,5 (N-methyl, N-hexyl) 1,4-phenylene vinylene, Poly(ethylene dioxythiophene), Poly(propylene dioxythiophene), poly(pyrrole), substituted poly(pyrrole), and any other conjugated electroactive polymer.

5. The layer according to claim 1 , wherein said layer further comprising embedded said fibers in an active layer of photosensitive conformable material that is optically transparent.

6. The layer according to claim 1 , wherein said nano sized redox capable materials are selected from the group consisting viologens, substituted viologens, and electron-poor conjugated materials, fullerenes, and any other material capable of electrochemical reduction.

7. The layer according to claim 1 , wherein said substrate(s) is selected from the group consisting of indium tin oxide, thin metal films, thin metal films on glass, silicon water, and any combination thereof.

Assignees

• Us Navy

Inventors

• Lai William W
• Baca Alfred J
• Stenger-Smith John D
• Meylemans Heather

Classifications

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01M4/70

  characterised by shape or form · CPC title

• H01M4/48

  of inorganic oxides or hydroxides · CPC title

• H01G11/60

  characterised by the solvent · CPC title

• H01M4/362

  Composites · CPC title