@article{Wang2026, 
author = {Wenhai Wang and Shuoshuo Ban and Nanzhe Li and Mingfu Ye and Mingyue Wang and Nan Yu and Konglin Wu},
title = {Porous MnO2 as a high-performance cathode for zinc-ion batteries via a dissolution/deposition mechanism},
year = {2026},
journal = {Energy Materials and Devices},
volume = {4},
number = {3},
pages = {9370100},
keywords = {manganese oxide, cathode, high-performance, zinc-ion battery},
url = {https://www.sciopen.com/article/10.26599/EMD.2026.9370100},
doi = {10.26599/EMD.2026.9370100},
abstract = {Zinc-ion batteries (ZIBs) have emerged as promising energy storage devices owing to their intrinsic safety, low cost, and environmental friendliness. However, sluggish ion transport kinetics remain a major challenge limiting their practical application. Herein, porous MnO2 was synthesized via a self-assembly-assisted hydrothermal process to facilitate ion transport. Electrochemical measurements demonstrate that porous MnO2 delivers a high specific capacity of 207 mAh g−1 at 0.2 A g−1 after 100 cycles, significantly outperforming Mn2O3 (85 mAh g−1) and MnO (28 mAh g−1). Furthermore, the charge–storage mechanism of porous MnO2 was systematically investigated, revealing that the capacity is predominantly governed by the MnO2 dissolution/deposition mechanism. This work provides new insights into the rational design of high-performance manganese oxide cathodes for aqueous ZIBs.}
}