Experimental analysis reveals d-electron delocalization improves performance of MnO2 cathodes in aqueous zinc batteries, indicating potential for higher energy density.
Key Points
The optimized α-MnO2 electrode achieves a specific capacity of 287.4 mAh g−1 at 1 A g−1, and a capacity retention rate of 92.8% over 700 cycles.
High-performance cathode materials show improved d-electron delocalization, facilitating better charge transfer and Zn2+ diffusion.
This analysis involved studying structure-activity relationships in engineered manganese oxide frameworks for energy storage.
Research highlights the importance of rational design in developing advanced aqueous zinc-MnO2 batteries with tailored electronic properties.