▎ 摘　　要

Lithium-sulfur (Li-S) battery has aroused great interest because of its ultrahigh theoretical capacity and energy density. Functional separators using two-dimension exfoliation nanosheets could efficiently barrier polysulfides for long-life Li-S batteries. Herein, we fabricate new two-dimensional ZnS(en)0.5 exfoliation nanosheets (ZENs) with microwave-assist exfoliation method, then composite it with graphene (G) to modify Celgard as separators for Li-S batteries. The ZENs were approximate 30-80 nm flakes. The ZENs dispersion is mixed with G powders and filtered on Celgard form the ZENs/G/Celgard separators. The sample sulfur (70 wt %(sulfur)) cathodes with ZENs/G/Celgard separator deliver an initial capacity of 1165.9 mA h g(-1), a substantial capacity of 685.3 mA h g(-1) after 100 cycles with capacity retention of 58.8% at 0.1 C, as well as 0.036% of capacity decay per cycle when cycled 1000 times at 0.5 C.