Supercapacitors based on carbon foams

Details Supercapacitors based on carbon foams Supercapacitors based on carbon foams

1992-01-17

1993-11-09

Griffin, Donald A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Double layer electrolytic capacitor

502418, 264 28, H01G 900, C01B 3102, B01J 2002

Patent

active

052608557

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: 4709303 (1987-11-01), Fujiwara et al.
patent: 4725926 (1988-02-01), Morimoto et al.
patent: 4725927 (1988-02-01), Morimoto et al.
patent: 4806290 (1989-02-01), Hopper et al.
patent: 4873218 (1989-10-01), Pekala
patent: 4997804 (1991-03-01), Pekala
patent: 5115378 (1992-05-01), Tsuchiya et al.
Pekala et al., Resorcinol-Formaldehyde Aerogels and Their Carbonized Derivatives, American Chemical Society Polymer Preprints, Dallas, Tex., Apr. 9-14, 1989.

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