Electrochemical supercapacitors
Abstract
A new class of electrochemical capacitors provides in its charged state a positive electrode including an active material of a p-doped material and a negative electrode including an active material of an n-doped conducting polymer, where the p-doped and n-doped materials are separated by an electrolyte. In a preferred embodiment, the positive and negative electrode active materials are selected from conducting polymers consisting of polythiophene, polymers having an aryl group attached in the 3-position, polymers having aryl and alkyl groups independently attached in the 3- and 4-positions, and polymers synthesized from bridged dimers having polythiophene as the backbone. A preferred electrolyte is a tetraalykyl ammonium salt, such as tetramethylammonium trifluoromethane sulphonate (TMATFMS), that provides small ions that are mobile through the active material, is soluble in acetonitrile, and can be used in a variety of capacitor configurations.
- Inventors:
-
- Los Alamos, NM
- Dallas, TX
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 870478
- Patent Number(s):
- 5527640
- Application Number:
- 08/306214
- Assignee:
- Regents of University of California, Office of Technology (Alameda, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- electrochemical; supercapacitors; capacitors; provides; charged; positive; electrode; including; active; material; p-doped; negative; n-doped; conducting; polymer; materials; separated; electrolyte; preferred; embodiment; selected; polymers; consisting; polythiophene; aryl; attached; 3-position; alkyl; independently; 3-; 4-positions; synthesized; bridged; dimers; backbone; tetraalykyl; ammonium; salt; tetramethylammonium; trifluoromethane; sulphonate; tmatfms; mobile; soluble; acetonitrile; variety; capacitor; configurations; conducting polymers; positive electrode; negative electrode; active material; preferred embodiment; conducting polymer; electrode including; active materials; electrode active; electrochemical capacitors; ammonium salt; electrochemical capacitor; /429/
Citation Formats
Rudge, Andrew J, Ferraris, John P, and Gottesfeld, Shimshon. Electrochemical supercapacitors. United States: N. p., 1996.
Web.
Rudge, Andrew J, Ferraris, John P, & Gottesfeld, Shimshon. Electrochemical supercapacitors. United States.
Rudge, Andrew J, Ferraris, John P, and Gottesfeld, Shimshon. Mon .
"Electrochemical supercapacitors". United States. https://www.osti.gov/servlets/purl/870478.
@article{osti_870478,
title = {Electrochemical supercapacitors},
author = {Rudge, Andrew J and Ferraris, John P and Gottesfeld, Shimshon},
abstractNote = {A new class of electrochemical capacitors provides in its charged state a positive electrode including an active material of a p-doped material and a negative electrode including an active material of an n-doped conducting polymer, where the p-doped and n-doped materials are separated by an electrolyte. In a preferred embodiment, the positive and negative electrode active materials are selected from conducting polymers consisting of polythiophene, polymers having an aryl group attached in the 3-position, polymers having aryl and alkyl groups independently attached in the 3- and 4-positions, and polymers synthesized from bridged dimers having polythiophene as the backbone. A preferred electrolyte is a tetraalykyl ammonium salt, such as tetramethylammonium trifluoromethane sulphonate (TMATFMS), that provides small ions that are mobile through the active material, is soluble in acetonitrile, and can be used in a variety of capacitor configurations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}
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