@article{Cao2022, 
author = {Jinhui Cao and Jiang Zhong and Hanjiao Xu and Shengyang Li and Hongli Deng and Tao Wang and Ling Fan and Xinghui Wang and Lei Wang and Jian Zhu and Bingan Lu and Xidong Duan},
title = {N/S co-doped carbon nanosheet bundles as high-capacity anode for potassium-ion battery},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {3},
pages = {2040-2046},
keywords = {high capacity, anode, long cycle, potassium-ion battery, carbon nanosheet bundles, N/S co-doping},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3773-5},
doi = {10.1007/s12274-021-3773-5},
abstract = {Potassium-ion batteries (PIBs) are of academic and economic significance, but still limited by the lack of highly active electrode materials for de-/intercalation of large-radius K ions. Herein, an interconnected nitrogen/sulfur co-doped carbon nanosheep bundle (N/S-CSB) was proposed as the potassium ions storage material. The rich co-doping of nitrogen/sulfur of N/S-CNB with three-dimensional hierarchical bundled array structure yields distensible interlayer spaces to buffer the volume expansion during K+ insertion/extraction, offers more electrochemical active sites to obtain a high specific capacity, and provides efficient channels for fast ion/electron transports. Therefore, the N/S-CSB anode achieved high reversible specific capacity of 365 mAh/g obtained at 50 mA/g after 200 cycles with a coulombic efficiency (CE) close to 100%, high rate performance and long cycle stability. Moreover, the in-situ Raman spectra indicated outstanding reaction kinetics of as-prepared N/S-CSB anode.}
}