Fast fabrication of high entropy oxides electrodes for flexible zinc-ion batteries with high electrochemical performance

Abstract

The expanding world population, increasing energy demand, and looming climate change urge the development of a sustainable energy future while safeguarding our vulnerable environment. To build a new flexible battery system, high entropy oxides are used as electrodes based on zinc-ion batteries. The battery system with the best electrochemical performance can be determined by a series of experimental designs. Here in I propose to develop a HEO electrode using a fast and clean laser deposition method. A series of tests are designed to verify the degree of performance improvement. In the further research planning, the electrode material can be produced with a metal removed from the HEOs alone and using the same synthetic method and performance measurements to determine the roles of each metal in the HEOs. Additionally, the anions in the HEOs can also be varied to study the impact of various anions on the cell's electrochemical performance. Finally, the particle size of the HEOs can be varied to establish a correspondence between particle size and electrochemical performance to facilitate the selection of the optimum particle sizes. The experimental results can further provide a theoretical basis for the commercial application of zinc-ion batteries in flexible power systems.