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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 ([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 = {1999},
month = {7}
}