Carbon foams for energy storage devices

Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Free carbon containing

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502418, 502437, 502180, 502182, B01J 2002, C01B 3100

Patent

active

055299717

ABSTRACT:
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.

REFERENCES:
patent: 4806290 (1989-02-01), Hopper et al.
patent: 4832881 (1989-05-01), Arhold, Jr. et al.
patent: 4873218 (1989-10-01), Pekala
patent: 4992254 (1991-02-01), Kong
patent: 4997804 (1991-03-01), Pekala
patent: 5208003 (1993-05-01), Simandl et al.
patent: 5260855 (1993-11-01), Kaschmitter et al.
Pekala et al.--"Resorcihol-Formaldehyde Aerogels and Their Carbonized Derivatives"--American Chemical Society Polymer Preprints--Dallas, Tex.--Apr. 9-14, 1989.

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