Design of cathode materials for high-performance aqueous zinc-ion batteries

Aqueous zinc-ion batteries (AZIBs), as a low-cost, safe, and sustainable alternative for large-scale energy storage, have garnered widespread attention. The application of traditional intercalation-type cathode materials is a widely studied topic in aqueous zinc-ion batteries. However, due to common issues such as material crystal structure collapse and transition metal dissolution, the performance release of these materials in aqueous zinc-ion batteries has been challenging.

In this report, I will share our recent work on Manganese and vanadium-based cathode materials, including the adoption of doping strategies, defect engineering, and interface design to address their common issues in aqueous zinc-ion batteries. In addition, we have shared various advanced characterization techniques, including the use of synchrotron radiation absorption and CT tomography in aqueous zinc-ion batteries, hoping to help everyone better and more thoroughly understand the design principles of cathode materials. Finally, we have shared some commercial explorations in the design of large pouch cells. These research findings provide new insights into the design of electrode materials for constructing high-performance and long-lasting aqueous zinc-ion batteries.