Method for making carbon super capacitor electrode materials
Patent
·
OSTI ID:672512
A method is described 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--250 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 C, follows carbonization. 1 fig.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corp., Livermore, CA (United States)
- Patent Number(s):
- US 5,776,384/A/
- Application Number:
- PAN: 8-511,384
- OSTI ID:
- 672512
- Resource Relation:
- Other Information: PBD: 7 Jul 1998
- Country of Publication:
- United States
- Language:
- English
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