Review Open Access

Review on Multi-Functional Separator for Li-S Batteries

Sustainable Polymer & Energy. 2023, 1(1), 10003;
Xin Zhang 1,    Bingyi Ma 1,    Sheng Huang 2,    Dongmei Han 1, 2, *   
School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
Authors to whom correspondence should be addressed.

Received: 18 Dec 2022    Accepted: 06 Mar 2023    Published: 13 Mar 2023   


Because lithium-ion batteries are not able to meet increasing demand for capacity density and power density, lithium metal batteries are given great expectations as the next generation of rechargeable batteries. As one of lithium metal batteries, lithium-sulfur (Li-S) batteries have attracted extensive attention because of their ultrahigh capacity density (1675 mAh g−1) and low cost of sulfur. In order to overcome problems of active material attenuation, dendritic growth and volume expansion caused by the shuttle effect in Li-S batteries, researchers have adopted several methods such as adding electrolyte additives, electrode modification and separator modification. Among them, separator modification shows significant advantages in inhibiting the shuttle effect of lithium polysulfides. This paper reviews research progress of inhibiting the shuttle effect of Li-S batteries by separator modification in recent years, including direct design of new type separator and physical/chemical modification of separator surface. Through extensive reading and summarizing research results of separator modification of Li-S batteries, we give the possible development direction of Li-S batteries at the end of the paper.


Li-S batteries; Functional separator; Shuttle effect


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