TY  - JOUR
AU  - Yang, Yun-Rui
AU  - Dong, Huan-Huan
AU  - Hao, Zhi-Qiang
AU  - He, Xiang-Xi
AU  - Yang, Zhuo
AU  - Li, Lin
AU  - Chou, Shu-Lei
PY  - 2023
TI  - Cobalt/Carbon Composites as Sulfur Hosts for High-Performance Lithium-Sulfur Batteries
JO  - Journal of Electrochemistry
SN  - 1006-3471
SP  - 2217003
VL  - 29
IS  - 4
AB  - Lithium-sulfur (Li-S) battery is one of the promising energy storage devices because of its high energy density. However, the sulfur cathode suffers from sluggish electrochemical reaction kinetics, slow charge transfer, large volume expansion and severe shuttle effect of lithium polysulfides inevitably resulting in low reversible capacity, poor rate performance and short cycle life, limiting its practical applications. Herein, the recent progress of cobalt/carbon composites, including cobalt nanoparticles and cobalt single atoms, as the sulfur host materials in Li-S batteries is overviewed. In general, cobalt plays the role of electrocatalyst, which inhibits the shuttle effect of lithium polysulfides, accelerates the electrochemical reaction kinetics, facilitates ion/electron transfer and alleviates volume expansion. Meanwhile, the prospects for the development of cobalt/carbon composites as sulfur hosts in Li-S batteries are proposed. It is expected to offer a whole blueprint and constructive suggestions for the cobalt/carbon composites as sulfur hosts for Li-S batteries, and these strategies can also be effective for other metal-sulfur batteries.
UR  - https://doi.org/10.13208/j.electrochem.2217003
DO  - 10.13208/j.electrochem.2217003