Xu Jing, Wei Zhengnan, Zhang Shaokang, Wang Xuanxuan, Wang Yihan, He Mengyuan, Huang Kejing
College of Chemistry and Chemical Engineering, Xinyang Normal University,Xinyang 464000, PR China.
Postdoctor Scientific Research Station of Shengli Petroleun Administration, SINOPEC, Dongying 257000, PR China.
J Colloid Interface Sci. 2021 Apr 15;588:378-383. doi: 10.1016/j.jcis.2020.12.083. Epub 2020 Dec 28.
Transition metal dichalcogenides (TMDs) have emerged as a promising material in the energy field due to their unique structural arrangement. In this work, ordered flower-like WSe nanosheet was synthesized through simple one-step hydrothermal method, and its cathode application for rechargeable Mg-ion batteries was assessed. The WSe cathode exhibits a high reversible capacity above 265 mAh g at 50 mA g, excellent cycling life of 90% initial capacitance that can be ceaselessly harvested for 100 cycles at 50 mA g, and superior rate capability of 70% initial capacitance maintained even at the current density of 500 mA g. This work paves the way for the application of WSe cathode in Mg-ion and other rechargeable batteries.
过渡金属二硫属化物（TMDs）因其独特的结构排列，已成为能源领域中一种很有前景的材料。在这项工作中，通过简单的一步水热法合成了有序的花状WSe纳米片，并评估了其在可充电镁离子电池中的阴极应用。WSe阴极在50 mA g时表现出高于265 mAh g的高可逆容量，在50 mA g下可连续100次循环收获90%初始电容的优异循环寿命，甚至在500 mA g的电流密度下仍保持70%初始电容的优异倍率性能。这项工作为WSe阴极在镁离子和其他可充电电池中的应用铺平了道路。
