Synthesis of Manganese Dioxide-based Nanomaterials for Supercapacitor Applications

How to store energy reliably and cost-effectively is of vital importance to people’s lives. Supercapacitors are a new class of energy storage devices that exhibit many advantages over batteries, such as rapid charging, excellent safety, and ultralong cycle life. However, the relatively low energy densities of supercapacitors largely hinder their practical applications. To achieve supercapacitor devices with high energy capacities, this thesis develops a number of manganese dioxide-based nanomaterials showing excellent energy storage performance. This work is significant to the commercialization of supercapacitors in the future.