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 (.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.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 872395
- Patent Number(s):
- 5925408
- Assignee:
- Sandia Corporation (Livermore, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; 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/
Citation Formats
Tan, Ming X. Method for making carbon films. United States: N. p., 1999.
Web.
Tan, Ming X. Method for making carbon films. United States.
Tan, Ming X. Fri .
"Method for making carbon films". United States. https://www.osti.gov/servlets/purl/872395.
@article{osti_872395,
title = {Method for making carbon films},
author = {Tan, Ming 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 (.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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}