2018 Volume 86 Issue 2 Pages 69-71
To enhance three phase interfaces on graphite cathodes in an Al-Cl2 cell, graphite cathodes with different densities (1.27, 1.32, 1.40, 1.57, and 2.00 gcm−3) were evaluated in an 1-ethyl-3-methylimidazolium chloride -AlCl3 mixture ionic liquid electrolyte at 313 K. The relation between current and cell voltage or power and current of the 1.27 gcm−3 graphite cathode showed the best performance among the graphite materials with 5 graphite densities in the cathodes investigated here. Surface profiles of the graphite by mercury intrusion porosimetry suggested that there are effective pore diameters for penetration of the electrolyte, lower density graphite has more pores on the surface than graphite with higher densities.
