Abstract
Abstract To improve the reduction efficiency of chlorine electrodes in aluminum-chlorine cells, this reports a circular cone type graphite cathode, with an electrochemical cell consisting of an aluminum anode and the graphite cathode evaluated in EMIC-AlCl3 ionic liquid. The current density in the circular cone type cathodes with different cone angles exhibited a maximum value at 40○, and the current density at cell voltage of 0.5 V was about 25 mA cm –2. This value is about 80% larger than that of a cylindrical type graphite cathode. In a circular cone type cathode with a 40○ angle, the maximum power density recorded was 15.3 mW cm –2.
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