Method for making carbon super capacitor electrode materials

Details Method for making carbon super capacitor electrode materials Method for making carbon super capacitor electrode materials

1995-08-04

1998-07-07

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

From cellulosic material

264 296, 264 297, C01B 3100

Patent

active

057763844

ABSTRACT:
A method for making near-net-shape, monolithic carbon electrodes for energy storage devices. The method includes the controlled pyrolysis and activation of a pressed shape of methyl cellulose powder with pyrolysis being carried out in two stages; pre-oxidation, preferably in air at a temperature between 200.degree.-250.degree. C., followed by carbonization under an inert atmosphere. An activation step to adjust the surface area of the carbon shape to a value desirable for the application being considered, including heating the carbon shape in an oxidizing atmosphere to a temperature of at least 300.degree. C., follows carbonization.

REFERENCES:
patent: 3856574 (1974-12-01), Amagi et al.
patent: 4597028 (1986-06-01), Yoshida et al.
patent: 5603867 (1997-02-01), Ohsaki et al.

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