Evaluation of the Activated Carbon Material Made from Carbonized Used-Cotton-Towels as Electric Double Layer Capacitor Electrodes

Abstract

EDLC and Li-ion Capacitor are attractive devices for accumulation of electricity. Their electrodes are made mainly from activated carbon. SATO-KOMUSHO Corporation has made activated carbon from used-cotton-towels. If it could be used for their electrode material, it would be good for the local industry. Hence, we have researched the possibility of carbonized used-cotton-towels as an electrode material. This research investigated an optimum compounding ratio by changing the ratio of a binder and conductive additives in order to obtain an essential capacity of the carbon material. Its capacity was ca. 100 F g⁻¹ and proved to be as large as that of current commercial electrode.