Method for making carbon films
Abstract
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 ([approx equal]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 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 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 C for between 1--6 hours. 2 figs.
- Inventors:
- Issue Date:
- Sponsoring Org.:
- USDOE; USDOE, Washington, DC (United States)
- OSTI Identifier:
- 6174221
- Patent Number(s):
- 5925408
- Application Number:
- PPN: US 9-071381
- Assignee:
- Sandia Corp., Livermore, CA (United States)
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 30 Apr 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 25 ENERGY STORAGE; CAPACITORS; CARBON; ELECTRODES; FABRICATION; HEATING; ORGANIC POLYMERS; PRECURSOR; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; NONMETALS; ORGANIC COMPOUNDS; POLYMERS; 360601* - Other Materials- Preparation & Manufacture; 250400 - Energy Storage- Capacitor Banks
Citation Formats
Tan, M X. Method for making carbon films. United States: N. p., 1999.
Web.
Tan, M X. Method for making carbon films. United States.
Tan, M X. Thu .
"Method for making carbon films". United States.
@article{osti_6174221,
title = {Method for making carbon films},
author = {Tan, M X},
abstractNote = {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 ([approx equal]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 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 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 C for between 1--6 hours. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 29 00:00:00 EDT 1999},
month = {Thu Jul 29 00:00:00 EDT 1999}
}