@article{Luo2022, 
author = {Hao Luo and Lipeng Wang and Penghui Ren and Jiahuang Jian and Xiong Liu and Chaojiang Niu and Dongliang Chao},
title = {Atomic engineering promoted electrooxidation kinetics of manganese-based cathode for stable aqueous zinc-ion batteries},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {9},
pages = {8603-8612},
keywords = {atomic engineering, Mn-based cathode, electrooxidation, Zn-ion battery, long lifespan},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4689-4},
doi = {10.1007/s12274-022-4689-4},
abstract = {Rechargeable zinc-based batteries with near-neutral media are standing in the middle of the energy storage field by virtue of their high safety and low cost. However, it is still imperative for Mn-based cathode to improve rate capacity by facilitating ions/electron transfer and long-cycle stability by suppressing Mn dissolution. Herein, promoting electrooxidation kinetics is proposed and employed to construct advanced Mn-Zn battery. The formation of carbon-protected birnessite-MnO2 is promoted via inducing the electron-donating capability of the heterointerface between the N-C coating and the defective MnO. Moreover, density functional theory calculations also demonstrate that N-C protected birnessite-MnO2 is more hydrophobic than pure birnessite-MnO2, which is beneficial to prohibiting Mn dissolution and other side reactions. As a result, the elaborate design realizes effective transformation from low valence to high valence Mn for high capacity (291 mAh·g−1) and protective bamboos-like structure for rate capacity (126 mAh·g−1 at 5 A·g−1) and cycling stability (89% capacity retention after 2,000 cycles). The assembled flexible quasi-solid-state Mn-Zn pouch batteries display application prospects for wearable and implantable electronic devices. The atomic engineering promoting electrooxidation kinetics strategy will be instructive in activating other cathode materials and maximizing their capacity.}
}