Method for making carbon films
- Livermore, CA
A method for treating an organic polymer material, preferably a vinylidene chloride/vinyl chloride copolymer (Saran) to produce a flat sheet of carbon film material having a high surface area (.apprxeq.1000 m.sup.2 /g) suitable as an electrode material for super capacitor applications. The method comprises heating a vinylidene chloride/vinyl chloride copolymer film disposed between two spaced apart graphite or ceramic plates to a first temperature of about 160.degree. C. for about 14 hours to form a stabilized vinylidene chloride/vinyl chloride polymer film, thereafter heating the stabilized film to a second temperature of about 750.degree. C. in an inert atmosphere for about one hour to form a carbon film; and finally activating the carbon film to increase the surface area by heating the carbon film in an oxidizing atmosphere to a temperature of at least 750-850.degree. C. for between 1-6 hours.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corporation (Livermore, CA)
- Patent Number(s):
- US 5925408
- OSTI ID:
- 872395
- Country of Publication:
- United States
- Language:
- English
Similar Records
Method for making carbon films
COATED POLYOLEFIN
Related Subjects
carbon
films
treating
organic
polymer
material
preferably
vinylidene
chloride
vinyl
copolymer
saran
produce
flat
sheet
film
surface
apprxeq
1000
suitable
electrode
super
capacitor
applications
comprises
heating
disposed
spaced
apart
graphite
ceramic
plates
temperature
160
degree
14
hours
form
stabilized
thereafter
750
inert
atmosphere
hour
finally
activating
increase
oxidizing
750-850
1-6
vinyl chloride
polymer film
method comprises
spaced apart
electrode material
inert atmosphere
organic polymer
carbon film
film material
comprises heating
polymer material
oxidizing atmosphere
carbon films
super capacitor
vinylidene chloride
method comprise
ceramic plate
thereafter heating
film disposed
capacitor applications
/427/