Patent ID: 9273415
Filing Date: 2016-03-01
CPC Classification: B05D,B82Y,D01D,D01F,H01M,Y02E

Claim Text:
1. A method of preparing a fiber, comprising: (a) electro-spinning onto a substrate polymer solutions from a plurality of jets to form a network of filaments, wherein at least one jet sprays onto the substrate a first chemical mixture comprising a carbon fiber precursor compound to form a plurality of first filaments, and at least one other second jet, different from the first jet, sprays onto the substrate a second chemical mixture comprising a sacrificial polymer and a precursor compound of a functional material to form a plurality of second filaments different from the first filaments; and (b) thermally treating the first and the second filaments to a first temperature sufficient to cause the sacrificial polymer to flow onto the surfaces of the first filaments; and (c) thermally treating the first filaments to a second temperature greater than the first temperature to form an arrangement of carbon fibers, substantially decompose the sacrificial polymer, and transform the functional material precursor compound into a functional material, wherein the functional material is located selectively at the surface of the carbon fibers.