Method for making carbon super capacitor electrode materials

Patent · Thu Jan 01 04:00:00 EST 1998

OSTI ID:871681

Firsich, David W ^[1]; Ingersoll, David ^[2]; Delnick, Frank M ^[3]

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1. Dayton, OH
2. Albuquerque, NM
3. Dexter, MI

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.

• Research Organization: Sandia National Laboratories (SNL-CA), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Livermore, CA)
• Patent Number(s): US 5776384
• Application Number: 08/511,384
• OSTI ID: 871681
• Country of Publication: United States
• Language: English

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