Research Progress of Key Components in Lithium-Sulfur Batteries

Authors

Jia-jia CHEN, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry,College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;Follow
Quan-feng DONG, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry,College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;Follow

Corresponding Author

Jia-jia CHEN(JiaJia.Chen@xmu.edu.cn);
Quan-feng DONG(qfdong@xmu.edu.cn)

Abstract

Due to the much higher theoretical specific capacity and energy density than the ones of traditional lithium ion battery, Li-S batteries have long been at the pinnacle in the realms of high-energy Li-metal batteries. However, the complicated electrochemical reactions on the sulfur cathode and Li anode, induced by the thermodynamic and kinetic behaviors of lithium polysulfides, are the intrinsic bottleneck to realize the full potential of Li-S batteries for practical application. In this review, we firstly discuss the roles, and thermodynamic and kinetic behaviors of polysulfides in the charging and discharging processes of Li-S batteries. Then, the functional design and optimization strategy of sulfur cathode, Li anode and electrolytes are introduced in detail. Finally, new insights are prospected for future advanced Li-S batteries.

Graphical Abstract

Keywords

lithium-sulfur batteries, polysulfides, sulfur-based cathode, lithium-based anode, electrolyte

DOI Link

https://doi.org/10.13208/j.electrochem.200642

Publication Date

2020-10-28

Online Available Date

2020-08-18

Revised Date

2020-08-10

Received Date

2020-06-10

Recommended Citation

Jia-jia CHEN, Quan-feng DONG. Research Progress of Key Components in Lithium-Sulfur Batteries[J]. Journal of Electrochemistry, 2020 , 26(5): 648-662.
DOI: 10.13208/j.electrochem.200642
Available at: https://jelectrochem.xmu.edu.cn/journal/vol26/iss5/15