High-performance electrochemical pseudo-capacitor based on MnO2 nanowires/Ni foam as electrode with a novel Li-ion quasi-ionic liquid as electrolyte

To achieve high energy and power densities, we developed a high-voltage 2.5 V electrochemical pseudo-capacitor with a maximum energy density of 304 W h kg(-1) based on MnO2 nanowires electrodeposited on nickel foam as electrode with a novel Li-ion quasi-ionic liquid as electrolyte.