With high energy density and low cost, lithium sulfur (Li-S) batteries own the potential to be next-generation electrochemical storage/conversion devices. However, their cyclic stability and life span are considerably impaired by polysulfide shuttling and self-discharge. Here, we design a microfiber glass filter-molybdenum disulfide/carbon-titanium nitride (μFGF-MoS₂/C-TiN) interlayer for suppressing the shuttle of polysulfides and self-discharge of Li-S batteries. TiN in the interlayer molecularly captures high-order polysulfide Li₂S₈ with an adsorption energy up to -6.48 eV, the largest high-order polysulfide absorption value ever reported, the largest high-order polysulfide absorption value ever reported. The μFGF-MoS₂ layer mechanically seizes polysulfides with interconnected torturous mesopores by functioning as a molecular sieve. With a sulfur loading of 4.5 mg cm^-2, the Li-S batteries based on μFGF-MoS₂/C-TiN exhibit remarkable over-1000-cycle stability with only 0.05 % capacity decay per cycle with an initial discharge capacity of 1000 mAh g^-1 at 1 C. The self-discharge is alleviated with an insignificant 10.3 % capacity loss after a 30-day rest.

锂硫（Li-S）电池具有高能量密度和低成本，具有成为下一代电化学存储/转换设备的潜力。但是，多硫化物的穿梭和自放电会大大损害它们的循环稳定性和寿命。在这里，我们设计了一个微纤维玻璃过滤器的二硫化钼/氮化碳-钛（μFGF-MOS ₂ / C-锡）层间用于抑制多硫化物和李-S电池的自放电的穿梭。夹层中的TiN分子以高达-6.48 eV的吸附能捕获高阶多硫化物Li ₂ S ₈，这是有史以来最大的高阶多硫化物吸收值，也是有报道的最大高阶多硫化物吸收值。所述μFGF-MOS ₂层通过充当分子筛机械地抓住具有相互连接的弯曲中孔的多硫化物。具有4.5硫装载毫克厘米^-2，基于μFGF-MOS锂-S电池₂ / C -锡表现出与每个周期仅0.05％容量衰减显着过1000循环稳定性与1000毫安时的初始放电容量克^-1以1C的自放电缓和用一个30天的休息后不显着10.3％的容量损失。