A network of Co x Ni y Al z layered triple hydroxides (LTHs) nanosheets was prepared by the potentiostatic deposition process at −1.0V (vs. Ag/AgCl) onto stainless steel electrodes. X-ray diffraction patterns show that the Co x Ni y Al z LTHs belong to the hexagonal system with layered structure. Cyclic voltammetry and charge discharge measurements in the potential range of −0.1 to 0.5V and 0.0–0.4V, respectively, vs. Ag/AgCl in 1M KOH electrolyte indicate that Co x Ni y Al z LTHs have excellent supercapacitive characteristics. The maximum specific capacitance of ∼1263Fg−1 was obtained for Co0.59Ni0.21Al0.20LTH. The impedance studies indicated highly conducting nature of the Co x Ni y Al z LTHs.