Lithium–sulfur (Li–S) batteries are strongly considered as promising energy storage devices due to their high capacity and large theoretical energy density. However, the shuttle of polysulfides and their sluggish kinetic conversion in electrochemical processes seriously reduce the utilization of active sulfur, leading to a rapid capacity fading. Herein we introduced indium nitride (InN) nanowires into Li–S batteries through separator modification. Both the indium cation and electron-rich nitrogen atom of InN served as the polysulfide traps through strong chemical affinity. Meanwhile, the rapid electron transfer on the surface of InN accelerated the conversion of polysulfides in a working battery. The bifunction of InN nanowires effectively suppressed the shuttle effect. Therefore, Li–S batteries with InN-modified separators exhibit excellent rate performance and high stable cycling life with only 0.015% capacity decay per cycle after 1000 cycles, which affords fresh insights into the energy chemistry of high-stable Li–S batteries.

中文翻译：

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高度稳定的锂硫电池的氮化铟的增强的电化学动力学和多硫化物阱

锂硫（Li–S）电池由于其高容量和大的理论能量密度而被广泛认为是有前途的储能设备。然而，多硫化物的穿梭及其在电化学过程中缓慢的动力学转化严重降低了活性硫的利用，导致容量快速下降。在这里，我们通过隔板修饰将氮化铟（InN）纳米线引入到Li–S电池中。InN的铟阳离子和富电子氮原子都通过强大的化学亲和力充当多硫化物阱。同时，InN表面的快速电子转移促进了工作电池中多硫化物的转化。InN纳米线的双重功能有效地抑制了穿梭效应。所以，