Method for making carbon super capacitor electrode materials

Patent · Thu Jan 01 00:00:00 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 Lab. (SNL-CA), Livermore, CA (United States)
• 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

Related Subjects

method
carbon
super
capacitor
electrode
materials
near-net-shape
monolithic
electrodes
energy
storage
devices
controlled
pyrolysis
activation
pressed
shape
methyl
cellulose
powder
carried
stages
pre-oxidation
preferably
air
temperature
200
degree
-250
followed
carbonization
inert
atmosphere
step
adjust
surface
value
desirable
application
considered
including
heating
oxidizing
300
follows
carbon electrode
storage device
energy storage
electrode material
inert atmosphere
storage devices
electrode materials
oxidizing atmosphere
carbon electrodes
super capacitor
monolithic carbon
activation step
ethyl cellulose
including heat
methyl cellulose
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