@article{Pan2022, 
author = {Hui Pan and Zhibin Cheng and Jan Fransaer and Jiangshui Luo and Michael Wübbenhorst},
title = {Cobalt-embedded 3D conductive honeycomb architecture to enable high-sulphur-loading Li-S batteries under lean electrolyte conditions},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {9},
pages = {8091-8100},
keywords = {honeycomb architecture, cobalt nanoparticles, high sulphur loading, lean electrolyte, lithium-sulphur battery},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4486-0},
doi = {10.1007/s12274-022-4486-0},
abstract = {High sulphur loading and lean electrolyte conditions are important to achieve the high theoretical energy density of lithium-sulphur (Li-S) batteries. However, serious problems such as low sulphur utilization and fast capacity fade are typically experienced under low electrolyte/sulphur (E/S) ratios and high sulphur loading conditions. To address these issues, a cobalt-containing three-dimensional conductive honeycomb (Co@N-HPC) is proposed in this work as a material for sulphur cathodes. The good electrical conductivity and high density of catalytic sites of (Co@N-HPC) allow fast redox kinetics of lithium polysulfide (LiPS) in high-sulphur-loading electrodes. In addition, the hierarchical structure and good wettability by the electrolyte of Co@N-HPC facilitates electrolyte penetration and LiPS conversion, leading to a high utilization of sulphur under lean electrolyte conditions. Therefore, at a current density of 0.2 C, a volumetric capacity of 1,410 mAh·cm−3 was attained with a sulphur loading of 5.1 mg·cm−2 and an E/S ratio of 5 µL·mg−1. This work provides ideas for the development of lean electrolyte Li-S batteries with a high sulphur loading.}
}