@article{Wang2025, 
author = {Bin Wang and Peng Chen and Siyuan Wang and Yang Chao and Peng Xie and Juanyun Li and Yanming Huang and Chenjie Xin and Peng Wan and Ding Chen},
title = {Enhancing proton kinetics in Bi2O2Se nanosheets via polymer coating for high-performance aqueous zinc metal batteries},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {8},
pages = {94907585},
keywords = {cathode material, metal selenides, poly(3,4-ethylenedioxythiophene) (PEDOT), zinc-ion batteries, Bi2O2Se},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907585},
doi = {10.26599/NR.2025.94907585},
abstract = {Rechargeable aqueous zinc-ion batteries (AZIBs) offer high ionic conductivity and environmental benefits, making them a promising alternative to lithium-ion batteries (LIBs) for large-scale energy storage. However, the large solvation radius and strong electrostatic interactions of Zn2+ can cause structural degradation in most cathode materials during insertion/extraction, limiting the practical application of AZIBs. In this study, a poly(3,4-ethylenedioxythiophene) (PEDOT)-coated bismuth oxyselenide composite (PEDOT@Bi2O2Se) was designed to enhance proton kinetics at the electrode surface, thereby increasing the proportion of surface pseudocapacitance. Density functional theory (DFT) calculations indicate that the PEDOT layer provides additional proton adsorption sites, introducing extra electrochemical active sites. Consequently, the PEDOT@Bi2O2Se cathode exhibits superior electrochemical performance, delivering a high specific capacity of 503.8 mAh·g−1 at 0.1 A·g−1 and retaining 51.9% capacity after 5000 cycles at 2.0 A·g−1. This work presents a promising and innovative modification strategy for designing high-performance electrodes in next-generation AZIBs.}
}