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Title: 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:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
872395
Patent Number(s):
5925408
Assignee:
Sandia Corporation (Livermore, CA) SNL
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}
}

Patent:

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