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Title: Supercapacitors based on carbon foams

A high energy density capacitor incorporating a variety of carbon foam electrodes is described. The foams, derived from the pyrolysis of resorcinol-formaldehyde and related polymers, are high density (0.1 g/cc-1.0 g/cc) electrically conductive and have high surface areas (400 m.sup.2 /g-1000 m.sup.2 /g). Capacitances on the order of several tens of farad per gram of electrode are achieved.
Inventors:
 [1];  [2];  [3]
  1. (6291 Alisal St., Pleasanton, CA 94566)
  2. (16026 Selborne Dr., San Leandro, CA 94578)
  3. (802 Cliffside Dr., Pleasant Hill, CA 94523)
Issue Date:
OSTI Identifier:
869006
Assignee:
Kaschmitter, James L. (6291 Alisal St., Pleasanton, CA 94566);Mayer, Steven T. (16026 Selborne Dr., San Leandro, CA 94578);Pekala, Richard W. (802 Cliffside Dr., Pleasant Hill, CA 94523) LLNL
Patent Number(s):
US 5260855
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
supercapacitors; based; carbon; foams; energy; density; capacitor; incorporating; variety; foam; electrodes; described; derived; pyrolysis; resorcinol-formaldehyde; related; polymers; cc-1; cc; electrically; conductive; surface; 400; g-1000; capacitances; tens; farad; electrode; achieved; energy density; carbon foam; electrically conductive; carbon foams; related polymers; foam electrodes; density capacitor; capacitor incorporating; foam electrode; /361/264/502/