Morphological effect on the electrochemical behavior of electric double-layer capacitors

摘要

Activated milled mesophase carbon fibers(AC-mMPCF, MP-series)show a higher specific capacitance in spite of a smaller specific surface area than those of powder-type activated carbons(AC-series). This phenomenon can be interpreted to mean that it is difficult to predict the capacitance of an electric double-layer capacitor (EDLC)knowing just the surface area and the pore size. More information is needed about other inherent characteristics of the samples, for example, the equivalent series resistance(ESR), shape of the pores, etc. we investigate here other characteristics of the samples.