3D nanoflower-like MoSe2 encapsulated with hierarchically anisotropic carbon architecture: a new and free-standing anode with ultra-high areal capacitance for asymmetric supercapacitors

An anisotropic carbon-supported MoSe₂ nanoflowers is designed and acts as an ultra-high areal capacitance of free-standing anode. The energy density of assembled asymmetric supercapacitor is higher than or comparable to that of some Li-ion batteries.