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Process for producing carbon foams for energy storage devices

United States Patent

*** EXPIRED ***
August 4, 1998
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
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.
Kaschmitter; James L. (Pleasanton, CA), Mayer; Steven T. (San Leandro, CA), Pekala; Richard W. (Pleasant Hill, CA)
Regents of the University of California (Oakland, CA)
08/ 619,393
March 20, 1996
The United States Government has rights in this invention pursuant to Contract Number W-7405-ENG-48 of the U.S. Department of Energy and the University of California for the operation of the Lawrence Livermore National Laboratory.