Graphite is a polymorph of the element carbon。It is layer structure. These delocalized electrons in the entire carbon atoms move freely resulting in a graphite has good electrical conductivity. The layers combined with van der Waals force, shows high resistance. Therefore, graphite can be seen as two-dimensional conductor. Its’ transport properties is between metal and semiconductor. So it is a traditional half-metallic material.

The electrical conductivity of graphite depends on the purity (i.e. carbon content), graphitization degree and the powder particle size, shape and other factors. Generally speaking, the higher the purity powder, the higher the degree of graphitization, the wider the particle size distribution and the higher the aspect ratio, the better the conductivity is.

Conductive carbon black is a general term that refers to the special black varieties which its conductive ability is better than ordinary conductive carbon black, carbon black pigment. According to conductivity capacity, from low to high order, it can be divided into CF conductive carbon black (Conductive Blacks), SCF super conductive carbon black (Super Conductive Blacks), and XCF special conductive carbon black (Extra Conductive Blacks). According to the production method, it can be divided into acetylene black, heavy oil furnace black, heavy oil gasification byproduct carbon three categories.

Carbon black is amorphous carbon, which is a hydrocarbon compound (liquid or gaseous) by the incomplete combustion or thermal cracking and the micro fine powder. Main component is carbon and a small amount of hydrogen, oxygen, sulfur, ash, tar and water. 

The conductivity depends on the graphitized carbon. The higher the degree of graphitization is , the better the conductivity is. Therefore, in general, the conductivity of graphite is better than carbon black . (but both must be high purity, if the purity is not high, than can not be comparable). Gathered in the high state, the conductivity of the graphite aggregates is much better than carbon black. This is the reason that a good electrically conductive electrode material is made of graphite not 

carbon  black.