Abstract Marked by high energy density and low material cost, lithium sulfur batteries are considered to be one of the most promising energy storage devices. However, the poor electrochemical performance impedes their practical application. In this work, MoS2 is decorated on carbon nanotubes paper (CNTP) through magnetron sputtering technique to fabricate interlayers for high-performance lithium sulfur batteries. Due to the catalysis of MoS2 on the conversion of sulfur species, lithium sulfur batteries present enhanced electrochemical performance. The initial discharge capacity reaches 1233 mA h g−1 and maintains 850 mA h g−1 after 100 cycles at 0.5C even the sulfur loading is about 3.4 mg cm−2. In addition, the coulombic efficiency is over 96% among all 100 cycles.

中文翻译：

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碳纸上磁控溅射二硫化钼及其作为高性能锂硫电池中间层的应用

摘要 锂硫电池具有能量密度高、材料成本低的特点，被认为是最有前途的储能装置之一。然而，较差的电化学性能阻碍了它们的实际应用。在这项工作中，MoS2 通过磁控溅射技术装饰在碳纳米管纸 (CNTP) 上，以制造用于高性能锂硫电池的中间层。由于二硫化钼对硫物种转化的催化作用，锂硫电池表现出增强的电化学性能。初始放电容量达到 1233 mAh g-1，并在 0.5C 下循环 100 次后保持 850 mAh g-1，即使硫负载量约为 3.4 mg cm-2。此外，所有100次循环的库仑效率均超过96%。