Electrochemically exfoliated WS_(2)in molten salt for sodium-ion battery anode

作     者：Bei-Lei Zhang Xiang Chen Hai-Jia Zhao Hong-Wei Xie Hua-Yi Yin Bei-Lei Zhang;Xiang Chen;Hai-Jia Zhao;Hong-Wei Xie;Hua-Yi Yin

作者机构：Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of EducationSchool of MetallurgyNortheastern UniversityShenyang110819China School of Resource and Environmental ScienceWuhan UniversityWuhan430072China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第4期

页      面：1227-1237页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the Fundamental Research Funds for the Central Universities(Nos.N2025034 and N2025035) Xingliao Project(No.XLYC1807042) the Program of the Ministry of Education of China for Introducing Talents of Discipline to Universities(No.B16009) 

主　　题：Tungsten disulfide Molten salt electrolysis Exfoliation Sodium-ion battery(SIB)anode 

摘      要：The poor crystallinity and unstable crystal structure of tungsten disulfide(WS2)limit its application in *** this paper,a molten salt electrolysis method is proposed to intercalate metal ions into the interlayers of layered WS2 to obtain few-layer sheetlike *** effect of the molten salt system,applied constant current and electrolysis duration on the exfoliation degree of WS2 bulk has been *** results show that the products electrolyzed in molten LiCl-NaCl-KCl and NaClKCl salts under 25 mA were more transparent and thinner flakes sheets due to the uniform intercalation of Li^+and Na^+with smaller *** exfoliated WS_(2)was used as an anode material for sodium-ion batteries with a potential of 0.01-2.50 *** comparison,the WS_(2)-NaCl-25 mA electrode displays a high reversible capacity of 373 mAh·g^(-1)at0.1 A·g^(-1)after cycling for 100 cycles at the same time showing great rate and cycle *** also presents a high capacitive ratio of 90.65%at 1.0 mV·s^(-1).The molten salt electrolysis provides a new perspective on the exfoliation of layered material,while demonstrating the great potential of WS2 as an anode material for sodium-ion battery.