Patent ID: 8603620
Filing Date: 2013-12-10
Classification: B82Y,C01B,C08J,D01F,Y10T

Abstract:
1. A carbon fibrous structure having a three-dimensional network shape and comprising carbon fibers having an average outside diameter of from 136 to 300 nm, wherein the carbon fibrous structure has a plurality of granular parts, and has at least partially a steric network structure of the carbon fibers in a state that a plurality of the carbon fibers sterically extend outwardly from the granular parts and that the extending carbon fibers are also bound with other granular parts; wherein the granular parts that bind the carbon fibers together have a particle diameter larger than an outside diameter of the carbon fiber, and are formed in a growth process of growing a carbon material in the circumferential direction of catalyst particles used while growing the carbon material into a fibrous shape, by using at least two carbon compounds having different decomposition temperatures as carbon sources, and wherein the carbon fibrous structure has a powder resistance of 0.02Ω·cm or less measured at a compression density of 0.8 g/cm