Co3O4/MnO2 Core/Shell-Nanostructured Pseudocapacitor Electrode

摘要

Pseudocapacitors have received a great deal of attention as next-generation energy storage systems. With high power density, specific capacitance, and the use of low-cost electrode materials, the pseudocapacitor has been considered an ideal system that is capable of bridging the gap between the electrical double-layer capacitor and the Li-ion battery. However, several issues, such as poor rate capability and cyclability resulting from the low electrical conductivity of the active materials, as well as Faradaic redox reactions for charge storage, must be addressed before practical utilization is feasible. A great deal of effort has been devoted to addressing these issues, including nanostructuring active materials, developing a novel electrode substrate, and synthesizing carbon-based nanocomposites.