Fluorinated graphites and a process for production thereof

Details Fluorinated graphites and a process for production thereof Fluorinated graphites and a process for production thereof

1985-08-05

1987-01-27

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204130, 204294, C25C 100

Patent

active

046392971

ABSTRACT:
A fluroinated graphite having the formula (C.sub.x F).sub.n wherein x is a numerical value of about 2.0 to about 5.5 and n refers to an indefinite number of the recurring (C.sub.x F) unit and having a crystalline structure exhibiting a peak at about 13.7.degree. to about 15.0.degree. in terms of an angle of 2.theta. corresponding to the diffraction at the (001) plane in the X-ray diffraction pattern, a peak in the vicinity of 685.3 eV due to the F.sub.ls and two peaks in the vicinity of 287.5 eV and 284.3 eV due to the C.sub.ls in the spectrum of electron spectroscopy of chemical analysis, two peaks in the vicinity of 1100 cm.sup.-1 and 1240 cm.sup.-1 in the IR spectrum, and an electric conductivity of at least about 10.sup.-8 .OMEGA..sup.-1 cm.sup.-1, and being thermlly stable in air up to 200.degree. C. from the viewpoint concerning a pattern of X-ray diffraction; and a process for producing the fluorinated graphite thereof which comprises subjecting a carbon material to electrolysis in hydrogen fluoride at a voltage of about 6.5V to about 15V at a temperature of about -40.degree. C. to about 100.degree. C. in the presence of an electrically conductive agent.
The fluorinated graphite has a wide variety of uses, for example, as an active material for the positive electrode of an electric cell, lubricants, stain-resistant and water and/or oil repellent materials, etc.

REFERENCES:
patent: 3671411 (1972-06-01), Ray et al.
patent: 4050997 (1977-09-01), Heissler et al.
patent: 4135995 (1979-01-01), Welch
patent: 4337139 (1982-06-01), Gestaut et al.
Chemical Abstracts vol. 96, No. 12, 3/22/82, p. 572, Abstract 93908X, "Reversible Electrochemical Formation of Graphite Fluorides from Aqueous Hydrofluoric Acid".
N. Watanabe, "Two Types of Graphite Fluorides (CF) and (C.sub.2 F)n, and Discharge Characteristics and Mechanisms of Electrodes of (CF)n and (C.sub.2)n in Lithium Batteries," Solid State Ionics, vol. 1, Nos. 1-2, Apr. 1980, pp. 87-110.

Affiliated with

Also associated with

Rating

Fluorinated graphites and a process for production thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluorinated graphites and a process for production thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorinated graphites and a process for production thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-856911