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Title: Nonaqueous Electrical Storage Device

Abstract

An electrochemical capacitor is disclosed that features two, separated, high surface area carbon cloth electrodes sandwiched between two current collectors fabricated of a conductive polymer having a flow temperature greater than 130.degree. C., the perimeter of the electrochemical capacitor being sealed with a high temperature gasket to form a single cell device. The gasket material is a thermoplastic stable at temperatures greater than 100.degree. C., preferably a polyester or a polyurethane, and having a reflow temperature above 130.degree. C. but below the softening temperature of the current collector material. The capacitor packaging has good mechanical integrity over a wide temperature range, contributes little to the device equivalent series resistance (ESR), and is stable at high potentials. In addition, the packaging is designed to be easily manufacturable by assembly line methods. The individual cells can be stacked in parallel or series configuration to reach the desired device voltage and capacitance.

Inventors:
 [1];  [2];  [3];  [4]
+ Show Inventor Affiliations
  1. Melrose, MA
  2. Seekonk, MA
  3. Woburn, MA
  4. Mansfield, MA
Issue Date:
Research Org.:
Covalent Associates, Inc. (Woburn, MA)
OSTI Identifier:
879445
Patent Number(s):
5973913
Application Number:
08/910146
Assignee:
Covalent Associates, Inc. (Woburn, MA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Show more
DOE Contract Number:  
FG02-96ER82149
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

McEwen, Alan B, Evans, David A, Blakley, Thomas J, and Goldman, Jay L. Nonaqueous Electrical Storage Device. United States: N. p., 1999. Web.
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McEwen, Alan B, Evans, David A, Blakley, Thomas J, & Goldman, Jay L. Nonaqueous Electrical Storage Device. United States.
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McEwen, Alan B, Evans, David A, Blakley, Thomas J, and Goldman, Jay L. Tue . "Nonaqueous Electrical Storage Device". United States. https://www.osti.gov/servlets/purl/879445.
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@article{osti_879445,
title = {Nonaqueous Electrical Storage Device},
author = {McEwen, Alan B and Evans, David A and Blakley, Thomas J and Goldman, Jay L},
abstractNote = {An electrochemical capacitor is disclosed that features two, separated, high surface area carbon cloth electrodes sandwiched between two current collectors fabricated of a conductive polymer having a flow temperature greater than 130.degree. C., the perimeter of the electrochemical capacitor being sealed with a high temperature gasket to form a single cell device. The gasket material is a thermoplastic stable at temperatures greater than 100.degree. C., preferably a polyester or a polyurethane, and having a reflow temperature above 130.degree. C. but below the softening temperature of the current collector material. The capacitor packaging has good mechanical integrity over a wide temperature range, contributes little to the device equivalent series resistance (ESR), and is stable at high potentials. In addition, the packaging is designed to be easily manufacturable by assembly line methods. The individual cells can be stacked in parallel or series configuration to reach the desired device voltage and capacitance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {10}
}
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Works referenced in this record:

Double Layer Capacitance and Charging Rate of Ultramicroporous Carbon Electrodes
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The Interfacial Stability of Li with Two New Solvent‐Free Ionic Liquids: 1,2‐Dimethyl‐3‐propylimidazolium Imide and Methide
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Electronically conducting polymers and activated carbon: Electrode materials in supercapacitor technology
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Structure of 1-ethyl-3-methylimidazolium hexafluorophosphate: model for room temperature molten salts
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Nonaqueous Electrolytes for Electrochemical Capacitors: Imidazolium Cations and Inorganic Fluorides with Organic Carbonates
journal, April 1997

The Intrinsic Anodic Stability of Several Anions Comprising Solvent‐Free Ionic Liquids
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Electric Double‐Layer Capacitor Composed of Activated Carbon Fiber Cloth Electrodes and Solid Polymer Electrolytes Containing Alkylammonium Salts
journal, July 1994

The Performance and Stability of Ambient Temperature Molten Salts for Solar Cell Applications
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New, Stable, Ambient-Temperature Molten Salts
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Hydrophobic, Highly Conductive Ambient-Temperature Molten Salts †
journal, January 1996

New Electric Double‐Layer Capacitors Using Polymer Solid Electrolytes Containing Tetraalkylammonium Salts
journal, July 1993

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