Corresponding Author

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


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


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

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