Asymmetric Supercapacitors: Preparation of MnCo2O4@Ni(OH)2Core-Shell Flowers for Asymmetric Supercapacitor Materials with Ultrahigh Specific Capacitance (Adv. Funct. Mater. 23/2016)

A novel supercapacitor electrode composed of multicomponent MnCo2O4@Ni(OH)2 belt-based core-shell nanoflowers is reported by L. M. Wu and co-workers on page 4085. This hybrid electrode exhibits ultrahigh specific capacitance and its asymmetric supercapacitor device also displays excellent electrochemical performance in terms of energy density, power density and cycling lifespan, which excel most of the previous reported nickel, cobalt, manganese oxides/hydroxides.