Carbon material and method of making same

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

10695225

ABSTRACT:
The present invention provides a novel carbon material for a electric double-layer capacitor having characteristics entirely different from prior art activated carbon. The capacitor develops a capacitance by a mechanism entirely different from the mechanism of an electric double-layer capacitor using activated carbon. The novel capacitor has improved performance including capacitance. The capacitor has polarized electrodes immersed in an organic electrolyte. The electrodes are made of a nonporous carbon having crystallites of graphite-like carbon. When a voltage is applied, electrolyte ions are intercalated between the layers of the crystallites of the graphite-like carbon together with the solvent. Thus, electric double layers are formed. Intercalation is induced by the first cycle of charging. In the second and following cycles, the capacitance is developed.

REFERENCES:
patent: 3770625 (1973-11-01), Wallis et al.
patent: 4392004 (1983-07-01), D'Sidocky
patent: 4725422 (1988-02-01), Miyabayashi et al.
patent: 5238760 (1993-08-01), Takahashi et al.
patent: 5338462 (1994-08-01), Abe et al.
patent: 5348818 (1994-09-01), Asami et al.
patent: 5426006 (1995-06-01), Delnick et al.
patent: 6310762 (2001-10-01), Okamura et al.
patent: 6316144 (2001-11-01), Xue et al.
patent: 6738252 (2004-05-01), Okamura et al.
Chang et al., ‘Oxidation of Carbon Derived From Phenolic Resin’ inCARBONvol. 16 No. 1 pp. 17-20 , 1978, no month.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Carbon material and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Carbon material and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon material and method of making same will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3761244

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.