2019 Volume 60 Issue 12 Pages 2576-2579
Herein, a stable LiCoO2/acetylene black (AB) acetone suspension was prepared using LiCoO2 and AB powders with iodine dissolved in acetone as solvent. Using the LiCoO2/AB acetone suspension, LiCoO2/AB films without binders were deposited on stainless steel substrates via direct current (DC) and pulsed electrophoretic deposition (EPD) methods. The thickness of the resulting films deposited via both methods was greater than 50 µm with 5.0% AB content. The capacity of the DC-EPD film was 100 mA·h/g in the first cycle; this capacity decreased with increasing number of cycles, and subsequently began to peel off from the substrate. The capacity of the pulsed-DC EPD deposited films was 115 mA·h/g in the first cycle; this capacity slightly decreased with an increase in the number of cycles, and film degradation was not observed after the charge–discharge cycles.
