An all-solid-state asymmetric hybrid supercapacitor empowered by MXene//MnO2/PEDOT: PSS electrodes and chitosan-PEO electrolyte

As the global greenhouse effect is becoming intense, its of great importance to develop renewable energy to cut down on human carbon footprint. Supercapacitor, an eco-friendly energy storage system, has received great success. The article discussed a kind of asymmetric solid-state supercapacitor using MXene as the anode, MnO2/PEDOT: PSS nanostructured composite as the cathode, and chitosan, polyethylene oxide as the electrolyte. In the experiment, this supercapacitor presents excellent properties such as high en-ergy density, wide voltage window due to the asymmetric structure, and the utilization of oxidation-reduction reaction.