@article{Li2023, 
author = {Min Li and Yebao Li and Qiao Cu and Yan Li and Hongyang Li and Zihao Li and Ming Li and Hua Liao and Ge Li and Gaoran Li and Xin Wang},
title = {Hollow and Hierarchical CuCo-LDH Nanocatalyst for Boosting Sulfur Electrochemistry in Li-S Batteries},
year = {2023},
journal = {Energy Material Advances},
volume = {4},
pages = {0032},
url = {https://www.sciopen.com/article/10.34133/energymatadv.0032},
doi = {10.34133/energymatadv.0032},
abstract = {Lithium-sulfur batteries (LSBs) are promising candidates for next-generation high-efficiency energy storage, yet their practical implementation is seriously impeded by the parasitic shuttle effect and sluggish reaction kinetics. Herein, we develop a unique Cu, Co layered double hydroxide (CuCo-LDH) with a hollow and hierarchical structure as an advanced electrocatalyst to tackle these challenges. Combining the compositional, architectural, and chemical advantages, the as-developed CuCo-LDH enables facile charge transfer, fully exposed active interfaces, and strong interactions with polysulfides via metal–sulfur bonding. When employed in the functional separator, a reliable polysulfide barrier can be established against the shuttling behavior, while the excellent catalytic activity realizes fast and efficient sulfur electrochemistry. As a result, the CuCo-LDH-based LSBs achieve a well-restrained capacity decay of 0.049% per cycle over 500 cycles together with a good rate capability up to 5 C. Moreover, a favorable areal capacity of 4.39 mAh cm−2 and decent cyclability are still attainable even under a high sulfur loading of 4.2 mg cm−2 and a low E/S ratio of 6 ml g−1. This work affords a feasible and instructive pathway toward advanced sulfur electrocatalysts as well as high-performance LSBs.}
}