@article{Xie2020, 
author = {Yangyang Xie and Junxian Hu and Zexun Han and Hailin Fan and Jingyu Xu and Yanqing Lai and Zhian Zhang},
title = {Ultra-stable K metal anode enabled by oxygen-rich carbon cloth},
year = {2020},
journal = {Nano Research},
volume = {13},
number = {11},
pages = {3137-3141},
keywords = {K metal anode, dendrite, oxygen-rich treated carbon cloth, K-philic sites, ultra-long-life},
url = {https://www.sciopen.com/article/10.1007/s12274-020-2984-5},
doi = {10.1007/s12274-020-2984-5},
abstract = {The K metal batteries are emerged as promising alternatives beyond commercialized Li-ion batteries. However, suppressing uncontrolled dendrite is crucial to the accomplishment of K metal batteries. Herein, an oxygen-rich treated carbon cloth (TCC) has been designed as the K plating host to guide K homogeneous nucleation and suppress the dendrite growth. Both density function theory calculations and experimental results demonstrate that abundant oxygen functional groups as K-philic sites on TCC can guide K nucleation and deposition homogeneously. As a result, the TCC electrode exhibits an ultra-long-life over 800 cycles at high current density of 3.0 mA·cm-2 for 3.0 mA·h·cm-2. Furthermore, the symmetrical cells can run stably for 2,000 h with low over-potential less than 20 mV at 1.0 mA·cm-2 for 1.0 mA·h·cm-2. Even at a higher current of 5.0 mA·cm-2, the TCC electrode can still stably cycle for 1,400 h.}
}