Method for fabricating an electrode substrate

Details Method for fabricating an electrode substrate Method for fabricating an electrode substrate

H - Electricity

01

M

319/19, 18/3

H01M 4/96 (2006.01) D01F 9/22 (2006.01) D01F 11/12 (2006.01) D01F 11/14 (2006.01) H01M 4/66 (2006.01)

Patent

CA 1106115

Abstract of the Disclosure The invention relates to a method for fabricating porous carbon articles. In accordance with the invention, the method comprises the steps of coating chopped carbon fibers with a low viscosity mixture of at least 70% by weight furfuryl alcohol, 0.25 - 5%,by weight, of an aqueous solution of 85% phosphoric acid or an equivalent amount of phosphoric acid, and a balance of water. A mat of coated fibers is then formed, and the furfuryl alcohol is polymerized and the mat is cured by heating the mat to a temperature between 50° - 200°C. The cured mat is carbonized by heating to at least 1500°C. in either an inert atmosphere or a vacuum.

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