Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1993-08-23
1999-08-03
Lewis, Michael
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
4234471, 264 291, C01B 3100
Patent
active
059321857
ABSTRACT:
A method for fabricating thin, flat carbon electrodes by infiltrating highly porous carbon papers, membranes, felts, metal fibers/powders, or fabrics with an appropriate carbon foam precursor material. The infiltrated carbon paper, for example, is then cured to form a gel-saturated carbon paper, which is subsequently dried and pyrolyzed to form a thin sheet of porous carbon. The material readily stays flat and flexible during curing and pyrolyzing to form thin sheets. Precursor materials include polyacrylonitrile (PAN), polymethylacrylonitrile (PMAN), resorcinol/formaldehyde, catechol/formaldehyde, phenol/formaldehyde, etc., or mixtures thereof. These thin films are ideal for use as high power and energy electrodes in batteries, capacitors, and fuel cells, and are potentially useful for capacitive deionization, filtration and catalysis.
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Kaschmitter James L.
Mayer Steven T.
Morrison Robert L.
Pekala Richard W.
Carnahan L.E.
Hendrickson Stuart L.
Lewis Michael
The Regents of the University of California
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