All-solid-state flexible asymmetric supercapacitors with high energy and power densities based on NiCo2S4@MnS and active carbon

The NiCo2S4@MnS on carbon cloth firstly prepared by two-step hydrothermal method; Flexible solid state asymmetric supercapacitor; A maximum energy density and power density of 23.3 Wh kg−1 at 1 A g−1 and 7.5 kw kg−1 at 10 A g−1; High specific capacitance of device: over 100 F g−1 at 4 A g−1.156