Properties of the Electric Double Layer Capacitors Composed of Activated Carbon Fiber Cloth Electrodes and a Organic Electrolyte

Abstract

Prperiesfheelecricdublelayer capac rs cmpsedfthreetypesQfacivaedcarbnfiber cloths ACFCs) ie phenolic based ACFC rayon based ACFC and polyacryonitrile based ACFC (PAN based CPC as polarizable electrodes have been invesigaed The specific surface area and he poe size dstrbuton of he ACFCs depended both onheix raw materia15 and on he activation methods The specifc suface area of PAN based ACFC rayon base4 0ne and phenolic based one increa5ed in tha order The elecric double laye capacitance at25C ws proportiona to the specific surface area Qf the ACFC pol aiz able electrQde The Performance ofi the capaciors was influenced by the poe size distrbuion of he ACFCs The internal resstance Qf he capaciors was grealy influenced by he conductiviy Of he Qrganic electrolye espeoially at a low temperatue250Cl 1NTRODUCTON