Moreover, the asymmetric solid-state supercapacitor (ASSc) was constructed by coupling Al-Co9S8@NG-600 with carbon nanorods derived from activated PANI (ACNRs) and demonstrated an increased energy density of 53.3 W h Kg -1 as well as 93% retention of capacitance after 10000 cycles. Motivated with the previous report, the same group fabricated the Al-CoS2@NG composite for energy storage . They prepared the composite by using the two-stage process. Firstly, the GO dispersion was mixed with calculated amounts of Co(NO3)2.6H2O and Al(NO3)3.9H2O along with 2-methyl imidazole at 145 °C for 12 h to form the layered double hydroxide hybrid with RGO. Then the resultant product was allowed to react with calculated quantities of glycine and thioacetamide under hydrothermal at 180 °C for 6 h.