As an attractive family of anode material for lithium‐ion battery (LIB), transition metal dichalcogenides (TMDs) with high energy density has been emerging very fast. Among various TMDs, tungsten disulphide (WS₂) with its intrinsically layered structure is a promising alternative anode candidate because of its high theoretical capacity. However, WS₂ usually suffers from poor cycling stability due to its large volume change during lithiation and delithiation process. Herein, we have synthesized carbon free nanostructured plate like WS₂ (NP‐WS₂) by an easy one pot hydrothermal synthesis process. Without introducing any conducting carbonaceous materials, the P‐WS₂ showing extraordinary lithium storage properties. At a C‐rate of C/8, the observed initial lithiation and delithiation capacities are 682.0 and 555.7 mAh g⁻¹, respectively. During the cycling stability test at a rate of C/4, even after 200 cycles P‐ WS₂ delivered high delithiation capacity of 380 mAh g⁻¹. Even without incorporation of conducting carbonaceous materials, NP‐WS₂ demonstrated extraordinary lithium storage performance which indicates its potential as an alternative high capacity anode material for lithium‐ion battery.

中文翻译：

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WS2等无碳纳米结构板，具有出色的锂存储性能

作为用于锂离子电池（LIB）的有吸引力的阳极材料系列，具有高能量密度的过渡金属二硫化碳（TMD）的发展非常迅速。在各种TMD中，具有固有层状结构的_二硫化钨（WS ₂）具有很高的理论容量，是一种很有前途的替代阳极。但是，由于WS ₂在锂化和脱锂过程中体积变化较大，因此通常循环稳定性差。在这里，我们通过简单的一锅水热合成工艺合成了像WS ₂（NP-WS ₂）的无碳纳米结构板。在不引入任何导电碳质材料的情况下，P‐WS ₂显示出非凡的锂储存性能。在C / 8的C速率下，观察到的初始锂化和脱锂容量分别为682.0和555.7 mAh g ^-1。在以C / 4的速率进行的循环稳定性测试期间，即使经过200个循环，P- WS ₂仍具有380 mAh g ^-1的高脱锂容量。即使不加入导电碳质材料，NP‐WS _2仍具有出色的锂存储性能，这表明其作为锂离子电池替代高容量负极材料的潜力。