Title: Aquagel electrode separator for use in batteries and supercapacitors

Abstract

An electrode separator for electrochemical energy storage devices, such as a high energy density capacitor incorporating a variety of carbon foam electrodes. The separator is derived from an aquagel of resorcinol-formaldehyde and related polymers and containing ionically conducting electrolyte in the pores thereof.

Inventors:

Mayer, Steven T ^[1]; Kaschmitter, James L ^[2]; Pekala, Richard W ^[3]

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1. San Leandro, CA
2. Pleasanton, CA
3. Pleasant Hill, CA

Issue Date:

1995-01-01

Research Org.:

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

OSTI Identifier:

869807

Patent Number(s):

5402306

Assignee:

Regents of University of California (Oakland, CA)

Patent Classifications (CPCs):

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2111/00844 - {for electronic applications}
C04B35/52 - based on carbon, e.g. graphite
C04B38/0022 - {obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors}
C04B38/0045 - {by a process involving the formation of a sol or a gel, e.g. sol-gel or precipitation processes}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

C08G8/04 - of aldehydes
C08G8/20 - with polyhydric phenols

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS

H01G11/26 - characterised by the structures of the electrodes, e.g. multi-layered, shapes, dimensions, porosities or surface features
H01G11/34 - characterised by carbonisation or activation of carbon

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

Y02E60/13 - Ultracapacitors, supercapacitors, double-layer capacitors

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DOE Contract Number:  

W-7405-ENG-48

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

aquagel; electrode; separator; batteries; supercapacitors; electrochemical; energy; storage; devices; density; capacitor; incorporating; variety; carbon; foam; electrodes; derived; resorcinol-formaldehyde; related; polymers; containing; ionically; conducting; electrolyte; pores; conducting electrolyte; energy density; chemical energy; carbon foam; storage device; energy storage; storage devices; electrochemical energy; related polymers; foam electrodes; density capacitor; capacitor incorporating; ionically conducting; foam electrode; electrode separator; /361/429/502/